book 6 - floor & ceilings jan 09
TRANSCRIPT
Floors and Ceilings
6
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Notes:
Safety Data Sheets for all Gypsum Industries products are available to download from our website: www.gypsum.ie or from the Technical Sales Departmentat 01 629 8400. Please obtain and refer to all relevant Safety Data Sheets prior to specifying, handling or installing any Gypsum Industries products.
If services are to be included within Gypsum Industries’ building systems, they should be installed in accordance with all available relevant standards,guidelines and recommendations.
The inclusion of Gypsum Industries’ building system specifications within this document does not imply compliance with all aspect of BuildingRegulations. If unsure about the suitability of a building system, please refer to the relevant Technical Guidance Document(s). It is the soleresponsibility of specifiers and end-users to ensure the suitability of a product, system or construction detail for their intended use.
All information contained herein is correct, to the best of our knowledge, at time of going to print (January 2009). However, the information is subjectto change and Gypsum Industries reserves the right to revise product specifications and performance claims without notice.
Floors and Ceilings6
6.1 Introduction 1
6.2 CasoLine MF 4
6.3 GypLyner 18
6.4 GypFloor SILENT 24
6.5 Timber joist ceilings and separating 34
/compartment floors
6.6 Ceiling boards, tiles and planks 48
6.7 Cavity barriers 52
6.8 Semi-exposed soffits 56
CONTENTS
SAFETY FIRST
Ensure that suitable personal protection is worn when handling or installing Gypsum Industries Products/Systems. All relevant Healthand Safety Legislation and Guidelines must be followed. The relevant Gypsum Industries Safety Data Sheets must be referred to prior tospecifying, handling or installing Gypsum Industries Products.
For current information, refer to www.gypsum.ie January 2009
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GENERAL
Gypsum Industries ceilings provide a choice of internallinings to timber joists or concrete floors. A range ofsolutions are available from straightforward direct fixinginto timber joists, through to suspended ceilings. Thesystems cover all building types, and are suitable for both new-build and refurbishment.
Applications cover basic ceiling linings through to the provision of sound insulation, thermal insulation, fireresistance and fire protection to structural steelwork.Gypsum Industries ceilings can also be specified as amembrane to protect roof trusses in loft spaces. Acomprehensive range of Arteco pre-finished gypsum ceilingtiles, boards and planks are available for use in theCasoLine systems. The products combine durability, acousticperformance and aesthetics, and can provide up to 60minutes fire resistance.
A number of sound insulating solutions are given for remedial treatments in conversion work. These includeGypFloor SILENT which provides a means of upgrading thefloor construction, and optimising the performance of theceiling lining.
EnvironmentalGypsum Industries ceiling products are not suitable for usein areas subject to continuously damp or humid conditions.Plasterboards are not suitable for use in temperaturesabove 49˚C but can be subjected to freezing conditionswithout risk of damage.
LoadingGypsum Industries metal framed systems are not designedto take the weight of personnel.
IS EN ISO 9001:2000Gypsum Industries manufacturers plasterboards and plastersunder the IS EN ISO 9001:2000 quality assurance system.
IS EN ISO 14001:1996Gypsum Industries has an environmental managementsystem which complies with the requirements of IS EN ISO14001:1996
Health and SafetySafety Data Sheets for all Gypsum Industries’ products areavailable to download from our website www.gypsum.ie,or via our Technical Sales Department.
FIRE PROTECTION
Gypsum Industries ceiling products provide good fireprotection owing to the unique behaviour of the non-combustible gypsum core when subjected to hightemperatures.
For reaction to fire classifications for Gyproc and Glasrocboards please refer to Section .
Lining selectionTwo high performance fire resistant boards are availablefrom Gypsum Industries – Gyproc FireLine and GyprocMultiBoard. Gyproc FireLine is a cost-effective fire resistantboard suitable for use over a wide range of specifications.Gyproc MultiBoard offers similar high levels of fireresistance, but gives the additional benefits of durabilityand flexibility. The inherent flexibility of Gyproc MultiBoardmakes it ideal for both convex and concave curved surfaces,an example application being a barrel vault ceiling.
Fire resistanceGypsum Industries floor and ceiling systems can provideprotection to structural steel, steel beams supportingconcrete floors, and to timber joist floors.
Plain-edged or badly fitted tongue and groove (t & g) floor
boarding contributes little to the overall fire resistance of
the floor. Well fitted t & g boarding can contribute
additional time to integrity and insulation. The addition of
a hardboard or plywood covering to plain-edged or badly
fitted t & g floor boarding can upgrade the contribution to
that of well fitted t & g boarding.
2.1
Introduction 6.1
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THERMAL PERFORMANCE
Thermal properties Gypsum Industries boards, ceiling tiles, and planks arerelatively lightweight materials and have low thermalcapacity. In conditions of intermittent heating, linings willwarm up quickly, providing early comfort conditions for theoccupants, and will help reduce the risk of harmful surfacecondensation.
Thermal insulationMoy insulation can be laid above the ceiling lining in some
systems to provide substantial levels of thermal insulation.
Timber floorsDuring the life of the building, gaps can occur round the
perimeter of suspended floors due to shrinkage of timber.
Air infiltration between the floor void and the room
through such gaps can contribute significantly to heat loss.
The designer should specify a method of restricting this air
movement, such as the provision of a flexible seal between
the floor and walls.
CONDENSATION CONTROL
Gyproc DUPLEX grade boards can be used as the lining where
the ceiling system is required to perform the function of a
vapour control layer. The application of two coats of
Gyproc Drywall Sealer after jointing provides additional
water vapour resistance.
Other precautions, such as cavity ventilation, may also be
necessary to reduce the risk of interstitial condensation.
SOUND INSULATION
Airborne sound insulation performance describes the
capability of the structure under test to reduce the levels of
sounds, such as speech or music, travelling between spaces.
Therefore, the higher the airborne sound insulation rating
the better the performance. The impact sound insulation
performance describes the resultant noise level in the room
below when the floor is impacted, for example, by
footsteps. Therefore the lower the impact sound insulation
rating the better the performance.
To achieve optimum sound insulation it is important that
the ceiling is made airtight. Most junctions can be sealed
using Gyproc jointing materials. Other small airpaths can be
treated using Gyproc Sealant.
Where Moy Isover insulation is specified in the cavity,
compression of the glass wool mat must be avoided by
ensuring that its thickness does not exceed the depth of the
cavity.
Conversion workThe sound insulation contribution of the existing floor will
play a significant part in the performance of the upgraded
construction. It is, therefore, important to optimise this by
sealing all gaps in and around the existing structure prior
to the installation of the new ceiling. Perimeters of floors
and ceilings can be sealed with Gyproc Sealant.
Gaps between floor boarding can be treated by fixing a
layer of hardboard on top. It is equally important to seal
the perimeter and joints of the new ceiling. Plasterboard
joints are sealed by the normal jointing techniques using
Gyproc Joint Tape and Gyproc jointing materials.
Perimeters can be treated in this manner but, if this is not
possible, Gyproc Sealant or a product from the Gyproc Cove
and Cornice range is recommended. Additional impact
sound insulation can be achieved by using a soft resilient
floor covering. Wherever possible, the ceiling to an existing
timber joist floor should be retained.
Introduction6.1
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Flanking transmissionAll quoted sound insulation figures were measured in the
laboratory in the absence of flanking transmission. It is
likely that on-site installation will be governed by flanking
transmission. This is particularly the case where support
walls are of lightweight masonry construction1 and a
weighted standardised level difference in excess of 50dB is
required for the floor. The use of timber joist or
lightweight concrete floors to meet Building Regulation
requirements with this type of associated structure may,
therefore, require the addition of some flanking
transmission control.
The use of timber joist sound resisting floors in timber
framed support structures (although again governed by
flanking transmission) generally results in performances in
keeping with the requirements of Building Regulations.
1 See BRE Digest 334 ‘Sound insulation of separating wallsand floors Part 2: Floors’.
Access to servicesThe Gyproc range of access panels has been purpose-
designed to give access to services in Gypsum Industries
access metal framed systems. They are available in a variety
of fire-rated and non fire-rated ceiling options. Refer to
section 8.4 - Gyproc Profilex Access Panels.
Introduction 6.1
3January 2009 For current information, refer to www.gypsum.ie
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INTRODUCTION
CasoLine MF concealed grid MF suspended ceiling system
is a monolithic suspended ceiling system suitable for most
internal dry lining applications. It is used in all types of
commercial and industrial buildings, including institutional
use areas such as schools and hospitals.
The system comprises a concealed metal framework
suspended from the structural soffit using strap hangers or
angle section. Gypframe Acoustic Hangers can be used to
suspend the grid from timber joists to maximise the degree
of acoustic isolation. Gyproc boards are screw-fixed to the
framework to form a ceiling lining with a seamless surface.
CasoLine MF provides a robust suspended ceiling able to
accept a degree of loading. The plenum is used to route
ducting and other services and can be accessed by
providing Gyproc Profilex access panels. Ventilation
openings and other services can also be accommodated.
Curved ceilings can be easily achieved using preformed
Gypframe MF7 support components.
CasoLine MFConcealed grid MF suspended ceiling system
6.2
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Suspension from concrete soffitGypframe MF6 Perimeter Channel is fixed to the wall at
maximum 600mm centres, and Gypframe MF12 Soffit Cleats
secured to the soffit at 1200mm centres, using appropriate
fixings. Gypframe MF8 Strap Hanger or Gypframe GA1 Steel
Angles are pre-cut and secured to the soffit cleats with
Gypframe MF11 Nut and Bolt. Alternatively, the GA1 angles
can be fixed directly to the Soffit (see figure 10).
Gypframe MF7 Primary Support Channels are installed over
the Gypframe MF6 Perimeter Channels and secured to the
hangers. Gypframe MF5 Ceiling Sections are run at right
angles to the underside of primary channels to form the
secondary grid. The ceiling sections are secured to the
primary channels by Gypframe MF9 Connecting Clips.
Boards are fixed to the secondary grid to form single or
multi-layer linings as specified.
Suspension from timber joistsThe procedure is as for concrete except that soffit cleats are
not required – hangers are twice fixed directly to the side
of the joists.
Board fixingsBoard fixings for Gyproc, Glasroc F and Rigitone boards
should be at 150mm centres at perimeters, 230mm centres
within the field of the board.
Board fixings for Gyptone boards should be at 230mm
centres across perimeters and through the field of the board.
INSTALLATION
A special procedure is used for framing, fixing and
jointing Rigitone and Gyptone boards. Detailed installation
notes are given in the Installation Guide.
CasoLine MFConcealed grid MF suspended ceiling system
6.2
5January 2009 For current information, refer to www.gypsum.ie
For full installation details, refer to the Installation Guide at www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:02 Page 5
CasoLine MFConcealed grid MF suspended ceiling system
6.2
6
Health and SafetySafety Data Sheets for all Gypsum Industries’ products
are available to download from our website
www.gypsum.ie, or via our Technical Sales Department.
EnvironmentalCasoLine MF is unsuitable for use in areas subject to
continuously damp or humid conditions.
Plasterboards are not suitable for use in temperatures
above 49ºC but can be subjected to freezing conditions
without risk of damage.
COMPONENTS
Table 1 Dimensions
Type of board Thickness Widthmm mm
...................................................................................................................Gyproc WallBoard1 12.5, 15 900, 1200Gyproc SoundBloc 12.5, 15 1200Gyproc FireLine1 12.5, 15 1200Glasroc F MultiBoard 6, 10, 12.5 1200Gyptone boards
LINE 6 12.5 1200QUATTRO 46 12.5 1200QUATTRO 47 12.5 1200QUATTRO 41 12.5 1200Curve LINE 7 6.5 900
...................................................................................................................1 also available in Duplex grades where vapour control is required
Rigitone boards
Table 2 Dimensions
Type of board Thickness Length Widthmm mm mm
...................................................................................................................
.8/18 12.5 1998 118810/23 12.5 2001 119615/30 12.5 2010 120012-20/66 12.5 1980 11888-15/20 12.5 2000 12008-15/20 SUPER 12.5 1960 1200....................................................................................................................
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CasoLine MFConcealed grid MF suspended ceiling system
6.2
7
Gyproc Profilex access panels – for access to the plenumfor maintenance purposes.
Gyproc Drywall Screws – for fixing plasterboards.
Gypframe Wafer Head Drywall Screws – for metal tometal fixing. Note: consider using Wafer Head Gyproc Jack-Point Screwsfor MF8 to MF7 connection.
Gyproc Sealant – if required, sealing airpaths foroptimum sound insulation.
Moy Plus – providing acoustic/thermal insulation.
Gyproc jointing materials – for seamless jointing.
Rigitone installation tool – for installation of Rigitoneboards.
Rigitone Vario 60 – for jointing of Rigitone boards.
Rigitone jointing kit – for seamless jointing of Rigitoneboards.
Thistle GypPrime – for controlling suction on Rigitoneboard edges.
Gyproc Skimcoat, Carlite Finish or Gyproc BoardFinish – providing a plaster finish.
Gypframe metal sections
MF5 Ceiling Section - main support sectionPrime dimensions 80mm x 26mmGauge 0.5mm, length 3600mm
MF6A Perimeter Channel - perimeter support for MF5sPrime dimensions 20mm x 27mm x 30mmGauge 0.5mm, length 3600mm
MF7 Primary Support Channel - primary support for MF5sPrime dimensions 15mm x 45mmGauge 0.9mm, length 3600mm
MF8 Strap Hanger - suspension of ceiling gridPrime dimension 25mmGauge 0.55mm, length 25m (coil)orGA1 Steel AnglePrime dimensions 25mm x 25mmGauge 0.55mm, length 2900mmorGAH2 Acoustic Hanger Length 70mm
MF9 Connecting Clip - fixing MF5s to MF7Gauge 2.65mm
MF11 Nut and Bolt - joining hanger to soffit cleat
MF12 Soffit Cleat - suspension point from structural soffitPrime dimensions 27mm x 37mm x 25mmGauge 1.6mm
COMPONENTS (cont’d)
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PERFORMANCE
Table 3 Dimensions, weights, and performance
Fire protection to steel beams1 supporting concrete floors
Ceiling boards Approx. MF5 MF7 Fire Performanceweight support support resistance2 substantiation
centres centres reportkg/m2 mm mm mins
..............................................................................................................................................................................................................................................Two layers of 12.5mm Gyproc WallBoard 21 450 1200 30 C100013..........................................................................................................................................................................................................One layer of 12.5mm Gyproc FireLine 14 450 1200 60 C100014
One layer of 12.5mm Gyproc MultiBoard 12 600 1200 60 G100036..........................................................................................................................................................................................................Two layers of 10mm Gyproc MultiBoard 20 400 1200 120 G100038
Two layers of 15mm Gyproc FireLine 28 450 900 120 C100015..............................................................................................................................................................................................................................................1 Concrete floors as described in BS 476: Part 23: 1987. The steel beams subjected to test had a section factor A/V (Hp/A) of 205m-1 calculated onthe basis of three sided profiled exposure. The suspended ceiling will also provide adequate protection to steel beams with a lower sectionfactor. For beams with a higher section factor, contact the Technical Sales Department for guidance.
2 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
Refer to section 6.1 Introduction, for general considerations. In the following tables the fire resistance and sound
insulation performances are based on imperforate constructions using boards with all joints taped and filled according to
Gypsum Industries’ recommendations. Moy insulation may be laid over the back of the ceiling grid, and does not detract
from the fire performance of the floors. The quoted performances are achieved only if Gypsum Industries’ components are
used throughout, and the Company’s fixing recommendations are strictly observed.
Fire protection - timber floor construction
Ceiling boards Approx. Floor MF5 MF7 Fire Performanceweight type1 support support resistance2 substantiation
centres centres reportkg/m2 mm mm mins
..............................................................................................................................................................................................................................................One layer of 12.5mm Gyproc FireLine 14 a 450 1200 30 C106001
Two layers of 12.5mm Gyproc WallBoard 21 a 450 1200 30 C106002.........................................................................................................................................................................................................
Two layers of 12.5mm Gyproc FireLine 24 a 450 1200 60 C106003.........................................................................................................................................................................................................
Two layers of 15mm Gyproc FireLine 28 a 450 900 90 C106004.........................................................................................................................................................................................................
Three layers of 10mm Gyproc MultiBoard 30 c 450 1200 120 G106035..............................................................................................................................................................................................................................................1 Floor types
a Timber joist floors incorporating any structurally suitable wood board flooring on timber joists not less than 38mm wide at 600mm centres.
b 21mm minimum t & g wood board flooring on timber joists not less than 44mm wide at 600mm centres.c 21mm minimum t & g wood board flooring on timber joists not less than 38mm wide at 600mm centres.
2 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
Table 4 Dimensions, weights, and performance
2.2
2.2
CasoLine MFConcealed grid MF suspended ceiling system
6.2
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CasoLine MFConcealed grid MF suspended ceiling system
6.2
9
Table 5 Dimensions, weights, and performance
Fire protection to floor or roof cavity above suspended ceiling1
Ceiling boards Approx. Insulation Fire resistance2 Performanceweight integrity : insulation substantiationkg/m2 minutes report
..............................................................................................................................................................................................................................................Two layers of 22 100mm Moy 30 : 30 C10604512.5mm Gyproc WallBoard Plus Roll
laid over grid
.......................................................................................................................................................................................................
Two layers of 28 30mm rock mineral wool 60 : 60 C10605115mm Gyproc FireLine slab (45 kg/m3) laid over grid
..............................................................................................................................................................................................................................................1 Normal fixing centres for Gypframe MF5s and MF7s (450 and 1200mm respectively).2 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
1 2
Table 6 Dimensions, weights, and performance
Detail Ceiling boards Approx. Laboratory sound insulation Performanceweight (100 - 3150Hz) substantiation
Airborne Impact reportkg/m2 Rw dB LnW dB
..............................................................................................................................................................................................................................................
One layer of 12.5mm Gyproc WallBoard 12 56 68 C100016
Two layers of 12.5mm Gyproc WallBoard 22 58 66 C100017
One layer of 12.5mm Gyproc SoundBloc 13 61 60 C100018
Two layers of 12.5mm Gyproc SoundBloc 24 64 57 C100019..............................................................................................................................................................................................................................................1 Basic floor construction is lightweight concrete joist floor with concrete infill panel (surface density of infill is 90kg/m3) and total depth150mm. sound insulation is Rw 35dB (airborne) and LnW 91dB (impact).2 Normal fixing centres for Gypframe MF5s and MF7s (450 and 1200mm respectively).
Upgrading of the sound insulation of concrete floors1
CasoLine MF ceiling2
hung underneath basic floorto give 240mm cavity
CasoLine MF ceiling2
hung underneath basic floorto give 240mm cavity, with 80mm
Moy Plus Roll in cavity
1
1
2
2
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Sound insulation to timber floors1
195mm x 45mm timber joists at CasoLine MF ceiling hung600mm centres with 18mm t and g underneath 195mm x 45mm wood chipboard flooring and timber joists at 600mm centres basic ceiling3. to give a 277mm cavity.
80mm Moy Plus Roll laid on ceiling boards. Floating floor2.
CasoLine MF ceiling CasoLine MF ceiling CasoLine MF ceiling CasoLine MF ceilinghung underneath basic floor hung underneath basic floor hung underneath basic floor hung underneath basic floor
to give 150mm cavity. (ceiling removed) to (ceiling removed) with a (ceiling removed) using 80mm Moy Plus Roll give 277mm cavity. layer of Gyproc Plank fixed to Gypframe Acoustic Hangers
laid on ceiling boards. 80mm Moy Plus Roll the underside of the chipboard to give a 277mm cavity.laid on ceiling boards. to give a 258mm cavity. 80mm Moy Plus Roll
80mm Moy Plus Roll laid on ceiling boards.laid on ceiling boards.
Detail Ceiling boards3 Approx. Floor Fire Laboratory sound insulation Performanceweight depth resistance4 (100 - 3150Hz) substantiation
Airborne Impact reportkg/m2 mm Rw dB LnW dB
..............................................................................................................................................................................................................................................One layer of 12.5mm Gyproc Plasterboard 11 226 38 79 C106028
Two layers of 12.5mm Gyproc SoundBloc 24 376 30 66 50 C106011
One layer of 12.5mm Gyproc SoundBloc 13 389 30 58 66 C106005
Two layers of 12.5mm Gyproc SoundBloc 24 402 30 61 60 C106006
Two layers of 12.5mm Gyproc SoundBloc 24 320 30 60 60 C106007
One layer of 12.5mm Gyproc SoundBloc 13 307 30 59 62 C106008
Two layers of 12.5mm Gyproc SoundBloc 24 320 30 63 57 C106009
Two layers of 12.5mm Gyproc SoundBloc 24 320 30 63 54 C106013
Two layers of 15mm Gyproc SoundBloc 27 381 60 66 54 C106025
Two layers of 12.5mm Gyproc FireLine 24 320 60 59 61 C106003
Two layers of 15mm Gyproc SoundBloc 28 325 60 60 60 C106014
Two layers of 12.5mm Gyproc FireLine 21 320 60 62 55 C106022
Two layers of 15mm Gyproc SoundBloc 27 325 60 63 54 C106023
Two layers of 15mm Gyproc FireLine 28 325 90 59 61 C106004
Two layers of 15mm Gyproc FireLine 25 325 90 62 55 C106024..............................................................................................................................................................................................................................................1 Normal fixing centres for MF5s and MF7s (450 and 1200mm respectively).2 18mm t & g wood chipboard spot bonded to Gyproc Plank on Moy Sound Deadening Floor Slabs laid on 12mm plywood.3 If the basic ceiling comprises of lath & plaster it should be supported by chicken wire, securely nailed to the joists.4 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
Table 7 Dimensions, weights, and performance
1
3 54
New floating floorBasic floor
2
Upgrading
6
1
CasoLine MFConcealed grid MF suspended ceiling system
6.2
10
2.2
3
3
5
5
6
4
4
4
4
2
6
6
6
2
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CasoLine MFConcealed grid MF suspended ceiling system
6.2
11
GypWall / CasoLine MF ceiling
Suspended ceiling construction
Double layer Single layer Double layer Single layer12.5mm Gyproc 12.5mm Gyproc 12.5mm Gyproc 12.5mm GyprocSoundBloc. SoundBloc. SoundBloc. SoundBloc.80mm Moy Plus 80mm Moy PlusRoll on back. Roll on back.
Partition construction Weighted standardised level difference (DnTw)and performance substantiation report number.
..............................................................................................................................................................................................................................................146mm Gypframe metal studs at 600mm centres. 51 50 50 4825mm Moy Acoustic Roll in cavity. C10J001 C10J002 C10J003 C10J004One layer of Gyproc Plank and one layer of 12.5mm Gyproc SoundBloc each side.
146mm Gypframe metal studs at 600mm centres. 49 48 48 4525mm Moy Acoustic Roll in cavity. C10J005 C10J006 C10J007 C10J008Two layers of 12.5mm Gyproc SoundBloc each side.
70mm Gypframe metal studs at 600mm centres. 45 45 44 4525mm Moy Acoustic Roll in cavity. C10J009 C10J010 C10J011 C10J012Two layers of 12.5mm Gyproc SoundBloc each side...............................................................................................................................................................................................................................................Refer to section 3.2 GypWall for partition performance data based on laboratory tests.
Table 8 Sound insulation of composite constructions
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Fire protectionFor reaction to fire classifications for Gyproc and Glasrocboards please refer to Section .
Fire resistanceThe fire resistances quoted are for imperforate ceilingstested to BS 476: Part 8: 1972, or BS 476: Parts 21 and 22:1987, or Part 23: 1987, or assessments based on these tests.
Sound insulationThe airborne and impact sound ratings quoted are forimperforate ceilings and have been tested in accordancewith BS EN ISO 140-3: 1995, and rated in accordance withBS EN ISO 717-1: 1997. The tests on ceiling/partitioncombinations in Table 8 were treated as site tests.
Airtightness is essential for optimum sound insulation. While most junctions will be sealed with standard jointingmaterials, gaps at the perimeter of the floor and ceiling,and other small airpaths, can be sealed using GyprocSealant. The sound insulation data quoted was measured inthe absence of flanking transmission. The performanceof the floor in practice will generally be governed byflanking transmission.
Gyptone and Rigitone boards are perforated and aredesigned to provide acoustic correction. Where soundinsulation room to room is required, sound attenuation(Dncw) of 39dB can be achieved with the inclusion of 100mmMoy Plus Roll over the back of the ceiling. Alternatively,other design considerations should be adopted such asextending adjoining partitions into the plenum void orinstalling a plenum barrier.
Sound absorptionGyptone and Rigitone boards provide sound absorptionwhen used in conjunction with an air space behind theceiling. Tests have been carried out to BS EN 20354: 1993and ISO 354: 1985. Increased levels of sound absorption canbe achieved by including insulation over the back of theceiling. For full details regarding the performance of theGyproc Ceilings Range, please refer to our Ceilings Guide.
Water vapour controlWhere there is a requirement for a vapour control layer,Duplex grade boards should be specified as the face layer(i.e. the second layer in double layer linings). Theapplication of two coats of Gyproc Drywall Sealer to theface lining will also provide vapour control.
Thermal propertiesMoy Isover insulation can be laid over the suspension gridto provide the required standard of thermal insulation.
DESIGN
Refer to section 6.1 Introduction, for general considerations.
Cavity barriersWhere cavity barriers are required, these can be formedusing Gyproc FireLine (limited combustability) or Glasroc FMultiBoard (non-combustible) screw-fixed to a simplemetal or timber frame. The framing should be fixed to thestructure to avoid undue loading of the ceiling suspensiongrid or, alternatively, additional hangers should beincorporated to support the ceiling alongside the cavitybarrier. Refer to section 6.7 Cavity barriers.
Ceiling lift The Designer should give consideration to designing in a‘pressure relief’ to minimise the risk of ceiling ‘lift’ in roomswith no permanent ventilation. Ceiling lift may arise whereopening a door in a virtually leak proof room causes thelightest element in the room, i.e. normally the ceiling, to lift,creating a noise. Making efforts to improve air tightness inbuildings may increase instances of ceiling lift. Whilst thismay be annoying to the occupier, it has no detrimental effecton the performance claimed for the ceiling, but designingout by incorporating permanent ventilation in the roomwould be desirable. Vents in the door or ceiling mightbe suitable.
Suspension – Gyproc and Gyptone linings Fixing points for suspending the metal grid are required at1200mm centres in each direction. Suitable fixing devices,e.g. Rawl Hammer In Fixing, should be employed whenfixing to the structure. These should be non-combustible,e.g. Rawl Rawlok Sleeve Anchor, when the ceiling isrequired to provide fire protection. The ceiling grid can besuspended from a concrete soffit using Gypframe MF12Soffit Cleats and Gypframe MF8 Strap Hanger, oralternatively, Gypframe GA1 Steel Angle. The latter providesa more robust suspension support which restricts any flexingof the lining when pressure is applied from below.Gypframe GA1 Steel Angle is thus the preferred suspensionoption when a plaster finish is specified to Gyproc boards.
If Gypframe GA1 Steel Angle is used it can, if preferred, befixed directly to the soffit rather than via MF12 Soffit Cleats.The angle is cut and bent to fit as shown in Fig 10. Forsingle layer boarding, where GA1 Steel Angle is fixed direct,the MF7 Primary Support Channel and GA1 Steel Angles arefixed at 1200mm centres. For typical double layer ceilingsthe GA1 Steel Angles are fixed at max. 1200mm centres,but the MF7s are closed down to 900mm max. centres.
Gypframe Acoustic Hangers can be used to suspend thegrid from timber joists to maximise the degree of acousticisolation (see Fig 12). In a comparative test a 3dBimprovement in airborne sound insulation and a 6dBimprovement in impact sound insulation were achieved.Refer to Table 7, Constructions 4 and 6 , relating todouble layer Gyproc SoundBloc linings.
2.1
CasoLine MFConcealed grid MF suspended ceiling system
6.2
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CasoLine MFConcealed grid MF suspended ceiling system
6.2
13
With concrete floors the high mass of the constructionmeans that high levels of acoustic performance can beachieved when the CasoLine MF ceiling is suspended byconventional means i.e. strap hangers or angle section.
Suspension – Rigitone linings The Gypframe MF7 Primary Support Channels are fixed at1000mm centres. Suspension points to the structure for theMF7’s are required at 900mm centres. Suitable Rawl fixingdevices should be employed when fixing to the structure.The ceiling grid can be suspended from a concrete soffitusing Gypframe MF12 Soffit Cleats and Gypframe MF8Strap Hanger, or alternatively, Gypframe GA1 Steel Angle.
Suspension of CasoLine MF from engineered I joistsPlease contact the joist manufacturer for advice.
Partition to suspended ceiling junctionTests on lightweight constructions have revealed thefollowing:–
1. In situations where a GypWall metal stud partition,which must be securely fixed to the structure, penetratesCasoLine MF, the structural performance of the partitioncan be based on the floor to suspended ceiling heightirrespective of the construction. Therefore, lightweightpartitions which are required for space division in tallstorey heights will be significantly strengthened by theceiling system. Where CasoLine MF is installed on one sideof the partition, only a slight loss of flexural strength willoccur when any loading is applied on the ceiling side of thepartition.
2. The structural performance of a GypWall metal studpartition fixed to the framework of a CasoLine MF ceiling,or to noggings cut from Gypframe MF5 Ceiling Section setat 600mm centres, is equal to the performance of a metalstud partition of the same height fixed direct to thestructural soffit.
Imposed loadsTables 9, 10 and 11 provide loading data for the suspensiongrid for Gyproc, Gyptone and Rigitone boards respectively,based on a limiting deflection factor of L/400.
Table 9 Maximum recommended loads on
CasoLine MF grid1 with Gyproc linings
Suspension point MF7 Maximum load including
centres channel weight of board and insulation*
centres
mm mm kg/m2
....................................................................................................................
1200 1200 30
1200 900 40
1200 600 60
900 1200 35
....................................................................................................................1 MF5 Ceiling Sections spaced at 450mm centres (maximum).
Table 10 Maximum recommended loads on
CasoLine MF grid with Gyptone linings
Suspension MF7 Maximum load including point channel board and any insulation.*centres centres MF5s at 600mm centres mm mm kg/m2
....................................................................................................................1200 1200 251200 900 351200 600 55....................................................................................................................
Table 11 Maximum recommended loads on
CasoLine MF grid with Rigitone linings
Suspension MF7 Maximum load including point channel board and any insulation.*centres centres MF5s at nominal 330mm centresmm mm kg/m2
....................................................................................................................900 1000 30....................................................................................................................
* Maximum loads should be reduced by 25% if GypframeGA1 Steel Angles are fixed directly to the soffit.
ServicesThe plenum can be used to route all service requirementsincluding ducting, pipework, electrical cables and conduit.Where lighting fittings, Gyproc Profilex access panels andsimilar components are incorporated as part of the designrequirements, consideration must be given to maintainingthe integrity of the ceiling to meet fire resistance andsound insulation requirements. Where Gyproc access panelsare required they can be installed as shown in Fig 4. Refer to section 8.4 - Gyproc Profilex Access Panels.
The installation of services should be in accordance with allavailable standards, guidelines and recommendations.
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 13
Fixtures / Fixings
Fixings to the system should always be made into the metalgrid or to supplementary framing. Some adjustment of theprimary grid may be required to support particularly heavyloads, see Tables 9, 10 and 11. Where loads outside thisrange are anticipated, independent suspension should beprovided from the structure.
Control jointsGyproc Control Joints may be required in the ceiling torelieve stresses induced by expansion and contraction of thestructure. The location of the control joints is at thediscretion of the specifier. It is recommended that theycoincide with movement joints within the surroundingstructure.
Rigitone expansion jointsRigitone boards should be cut 10mm short of the perimeterwall and should not be fixed to the perimeter channel, seeFigs 7 and 8. Expansion joints should be included in theceiling, one 10mm expansion joint should be included every10m of ceiling in each direction, and where there is anexpansion joint within the surrounding structure.
FinishingRefer to section 1.5 Finishing Coat Plasters, section 2.2Jointing, and section 2.4 Decorative effects.
Additional care and attention should be exercised whenjointing Gyptone and Rigitone boards so as not to fill theperforations and impair the acoustic performance of thefinished ceiling.
Estimating – Gyproc / Gyptone liningsThe estimated construction time is 1.5m2 / man hour (singlelayer ceiling) or 1m2 / hour (double layer ceiling) ready forfinishing.
Estimating – Rigitone liningsThe estimated construction time is 0.75m2 / man hour readyfor decoration.
CONSTRUCTION DETAILS
Fig 1 Typical layout for plasterboard
1200mm
1200mm150mm
maximumcentres
230mmmaximum
centres
450mm
CasoLine MFConcealed grid MF suspended ceiling system
6.2
14 For current information, refer to www.gypsum.ie January 2009
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 14
CasoLine MFConcealed grid MF suspended ceiling system
6.2
15
Fig 2 Typical layout for Gyptone board (LINE 6 – 2400 x 1200mm board illustrated)
1200mm
1200mm
600mm
CONSTRUCTION DETAILS CONT’D
Fig 3 Typical layout for Rigitone board
1000mm max. 1000mm 1000mm
A A
B
B
900m
m90
0mm
330
no
m33
0n
om
330
no
m33
0n
om
330
no
m33
0n
om
150
max
.
See Fig 7
See Fig 8
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 15
Fig 5 Perimeter arrangement – Gypframe MF5Ceiling Section
Fig 6 Perimeter arrangement – Gypframe MF7Primary Support Channel
Fig 4 Gyproc Profilex access panel installation
Fig 7 Perimeter arrangement – Rigitone boards Fig 8 Perimeter arrangement – Rigitone boards
1000mmmax.
150mmSection AA of Figure 3.
Section BB of Figure 3.
CasoLine MFConcealed grid MF suspended ceiling system
6.2
16 For current information, refer to www.gypsum.ie January 2009
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 16
CasoLine MFConcealed grid MF suspended ceiling system
6.2
17
Fig 11 Bulkhead
Fig 13 Change of level
Fig 12 Suspension from timber joists usingGypframe Acoustic Hangers
Fig 10 Pre-forming Gypframe GA1 Steel Angle fordirect fixing to the structure. Note: Please refer toTables 11 to 13.
Fig 9 Clip fixing of Gypframe MF5 Ceiling Section.Note: Please refer to DESIGN: Imposed loads on p15.
MF12
MF8
MF7
MF9
MF5
Gypframe Acoustic Hanger
MF11
35m
m
M6nut/bolt/washers
(by others)
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 17
GypLyner ceiling is a general purpose ceiling lining system
suitable for most internal applications. It is used in all
types of buildings from residential properties to large
commercial developments, and is equally suited to both
new-build and refurbishment. The system caters for
bulkheads and novel design details and fully complements
GypLyner wall lining.
The ceiling is based on an independent metal framework
comprising channel sections friction fitted to a track at the
perimeter. The channel sections are fixed back to the
background with support brackets or connectors. The
framing assembly is clad with Gyproc boards. The lining is
jointed to achieve a seamless surface suitable to receive
most decorative finishes.
GypLyner ceiling is easy to handle and simple to
construct. By maintaining a cavity to the background, it
readily facilitates the inclusion of services. The framework
can be used with all types of background and the
stand-offs which can be achieved enable background
irregularities to be corrected. Generally no preparation
work is required.
INTRODUCTION
18
GypLyner™
Concealed grid ceiling lining system6.3
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book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 18
19
GypLyner™
Concealed grid ceiling lining system6.3
Fixing to a concrete soffitGypframe GL8 Track is fixed at the perimeter with the
longer leg at the bottom. Gypframe GL2, GL9 or GL12
Brackets are fixed at the required centres. Gypframe GL1
Lining Channel is located into the perimeter track and each
leg of the GL2, GL9 or GL12 Bracket is screw-fixed to the
Gypframe GL1 Lining Channel. The protruding legs of each
bracket are bent to sit back from the channel face.
Gypframe GL1 Lining Channel sections are joined using
Gypframe GL3 Channel Connectors.
Additional channel or supplementary framing is installed if
required to support fixtures. Boards are fixed to the
Gypframe GL1 Lining Channels to form one or two layer
linings as specified.
Fixing to timber joistsGypframe GL5 or GL6 Timber Connectors are fixed to the
side of joists using Gyproc Drywall Screws. The connectors
must be aligned accurately since they can not be adjusted
once Gypframe GL1 Lining Channel is engaged into a row
of timber connectors and twisted into position. The
channels are located into Gypframe GL8 Track at the
perimeter. Gypframe GL1 Lining Channel sections are
joined using Gypframe GL3 Channel Connectors.
Additional channel or supplementary framing is installed if
required to support fixtures. Boards are fixed to the
Gypframe GL1 Lining Channels to form one or two layer
linings as specified.
If the existing ceiling is to be retained, Gypframe GL2, GL9
or GL12 Brackets are fixed to joists through the retained
ceiling with suitable fixings. Gypframe GL1 Lining Channels
and boards are fixed to form the new ceiling.
INSTALLATION
January 2009 For current information, refer to www.gypsum.ie
For full installation details, refer to the Installation Guide at www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 19
Gypframe metal sections
GL1 Lining Channel in 2400, 2700, 3000 and
3600mm lengths. Prime dimensions are
45mm x 18mm
GL3 Channel Connector – for joining
GL1 channels
GL2 Fixing Bracket – fixing to structure
Maximum stand-off 75mm
GL9 Fixing Bracket – fixing to structure
Maximum stand-off 125mm
GL12 Fixing Bracket – fixing to structure
Maximum stand-off 175mm
GL5 Timber Connector
Length: 70mm
GL6 Timber Connector
Length: 170mm
GL8 Track, 3600mm length
Prime dimensions are 30mm x 20mm x 20mm
Gypframe Wafer Head Drywall Screws – fixing the
brackets to GL1.
Gypframe GL11 GypLyner Anchors – fixing the brackets
to concrete / masonry.
Gyproc Drywall Timber Screws – for fixing brackets to
timber supports.
Gyproc Drywall Screws – fixing plasterboards to metal
framing.
Gyproc Sealant – if required, sealing airpaths for
optimum sound insulation.
Gyproc jointing materials – for a seamless finish.
Gyproc Skimcoat, Carlite Finish or Gyproc BoardFinish – to provide a plaster finish.
Moy Plus Roll and Moy Acoustic Roll
Moy Sound Deadening Floor Slabs
COMPONENTS
Health and SafetySafety Data Sheets for all Gypsum Industries’ products areavailable to download from our website: www.gypsum.ie,or via the Technical Sales Department.
EnvironmentalGypLyner is unsuitable for use in areas subject to
continuously damp or humid conditions.
Plasterboards are not suitable for use in temperatures
above 49ºC but can be subjected to freezing conditions
without risk of damage.
Gyproc plasterboards
Table 1 - Dimensions
Type of board Thickness Widthmm mm
1 1200mm wide boards also available in Duplex Grade wherevapour control is required.
Gyproc FireLine1 12.5, 15 1200
Gyproc WallBoard 12.5, 15 900, 12001
Glasroc F MultiBoard 12.5 1200
Gyproc SoundBloc 12.5, 15 1200
20
GypLyner™
Concealed grid ceiling lining system6.3
For current information, refer to www.gypsum.ie January 2009
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 20
PERFORMANCE
Please refer to section - Introduction - for general considerations.6.1
Table 2 - Dimensions and performance1 - upgrading
1
32 4 5
Existing basic floor (18mm T&G flooring grade chipboard) and ceiling
18mm T&G chipboard andexisting ceiling of 9.5mm
Gyproc WallBoard. GypLynerceiling2 hung underneath to
give a cavity minimum of 50mmto a maximum of 145mm.50mm Moy Acoustic Roll
in the cavity.
Existing floor and ceiling retained Existing floor retained
18mm T&G chipboard and aceiling of Gyproc Plank and
12.5mm Gyproc WallBoard tosimulate a wood lath and plasterceiling3. GypLyner ceiling2 hung
underneath to give a cavityminimum of 50mm to a
maximum of 145mm. 50mmMoy Acoustic Roll in the cavity.
Existing 18mm T&G chipboardretained. Existing wood lathand plaster ceiling removed
(old nails can be left in positionon the underside of joists).100mm Moy Plus Roll in thecavity with GypLyner ceiling
hung underneath.
Existing 22mm T&G flooringgrade chipboard retained.
GypLyner ceiling hungunderneath with GL1 LiningChannels at 600mm centres.
Detail Ceiling boards Joist Joist Fire Laboratory sound insulation Performancecentres size resistance4 (100 - 3150Hz) substantiation
Airborne Impact reportmm mm mins Rw dB Lnw dB
Existing layer of 9.5mm Gyproc Plasterboard 450 195 x 47 – 37 80 C1540011
Two layers of 12.5mm Gyproc SoundBloc 450 200 x 50 30 57 61 C154002
One layer of 12.5mm Gyproc FireLine 450 195 x 45 30 53 64 C154003
Two layers of 12.5mm Gyproc SoundBloc 450 200 x 50 30 54 65 C154004
3
2
4
Two layers of 12.5mm Gyproc FireLine 450 195 x 45 60 56 62 C154005
Two layers of 12.5mm Gyproc FireLine 450 195 x 45 60 59 59 C154006
Two layers of 12.5mm Gyproc FireLine 450 195 x 45 60 53 66 C154007
Inner layer of Gyproc Plank and an outer 600 195 x 45 60 52 66 C206004layer of 12.5mm Gyproc WallBoard
One layer of 12.5mm Gyproc MultiBoard 600 200 x 44 60 – – G106030
3
2
4
5
Two layers of 12.5mm Gyproc MultiBoard 600 200 x 50 90 – – G1060335
1 The fire resistance and sound insulation performances are for imperforate ceilings with all joints taped and filled inaccordance with Gypsum Industries’ recommendations. The quoted performances are achieved only if Gypsum Industriescomponents are used throughout, and the Company’s fixing recommendations are strictly adhered to. Any variation in thespecification should be checked with Gypsum Industries.2 Gypframe GL6 Timber Connectors are bent at a position between the third and fourth holes along (forming a 30mmhorizontal leg) to form a right angle, and fixed through the existing ceiling with suitable fixings.3 Existing lath and plaster ceiling (up to 20mm thick) should be supported by chicken wire, securely nailed to the joists.4 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Pleaserefer to section for full details.
4
2.2
21
GypLyner™
Concealed grid ceiling lining system6.3
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 21
Table 3 - Dimensions and performance1 - upgrading to compartment / separating floor standard
Existing basic floor (21mm softwood) and ceiling Floor boarding lifted and replaced, existing ceiling removed
Detail Ceiling boards Joist Joist Fire Laboratory sound insulation Performancecentres size resistance3 (100 - 3150Hz) substantiation
Airborne Impact reportmm mm mins Rw dB Lnw dB
1 32
GypFloor SILENT comprising of21mm softwood floor boardingwith Gyproc Plank on Gypframe
SIF Floor Channels. 100mmMoy Plus Roll in the cavity with
GypLyner ceiling hungunderneath (old nails may be
left in position on theunderside of joists).
Platform floor2 GypLynerceiling hung underneath timber
joists to give a 277mm cavity,with 100mm Moy Plus Roll
between the joists.
1 The fire resistance and sound insulation performances are for imperforate ceilings incorporating tapered edge boards withall joints taped and filled according to Gypsum Industries’ recommendations. The quoted performances are achieved only ifGypsum Industries’ components are used throughout, and the Company’s fixing recommendations are strictly adhered to. Any variation in the specification should be checked with Gypsum Industries.2 Platform floor comprising of a walking surface of 18mm T&G wood board flooring, spot-bonded with Gyproc Sealant at300mm centres to a substrate of Gyproc Plank laid on 25mm Moy Sound Deadening Floor Slabs (64kg/m3) on minimum 12mmwood based sheet sub-deck, nailed to joists.3 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Pleaserefer to section for full details.
One layer of 12.5mm Gyproc plasterboard 450 195 x 45 30 (modified) 36 82 C1540111
Two layers of 12.5mm Gyproc SoundBloc 600 195 x 45 30 62 56 C106017
Inner layer of Gyproc Plank and an outer 450 200 x 50 60 63 55 C154008layer of 12.5mm Gyproc SoundBloc
3
2
2.2
22
GypLyner™
Concealed grid ceiling lining system6.3
For current information, refer to www.gypsum.ie January 2009
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 22
Please refer to section - Introduction - for general
considerations.
Planning - key factorsThe depth of the ceiling cavity is determined by the
positioning of the fixing brackets. For concrete soffits the
fixing brackets allow sufficient adjustment for levelling the
ceiling. Allow for a stand-off of 25mm - 75mm plus the
lining thickness when using Gypframe GL2 Brackets, 25mm -
125mm plus lining thickness when using Gypframe GL9
Brackets and 25mm-175mm plus the lining thickness when
using GL12 Brackets. When fixing to timber joists using
Gypframe GL5 or Gypframe GL6 Timber Connectors, allow for
a maximum cavity depth of 35mm and 120mm respectively
measured from the bottom of the joists to the underside of
the GL1.
Cavity barriersWhere cavity barriers are required these can be formed
using Gyproc FireLine (limited combustibility) or Gyproc
MultiBoard (non-combustible) screw-fixed to a simple
metal frame. The framing should be fixed to the structure
to avoid undue loading of the ceiling suspension system.
Please refer to section - Cavity barriers.
Fixing to the structureWhen lining concrete soffits, Gypframe brackets should be
positioned equidistant at up to 1200mm maximum centres.
Gypframe GypLyner Anchors are suitable for fixing brackets
to solid concrete or masonry backgrounds. The safe
working load is 350N per fixing, tested in concrete of
characteristic strength of 30 N/mm2. When fixing to hollow
backgrounds proprietary fixings will be necessary.
When lining timber joists, Gypframe timber connectors
should be fixed to the joists to support the channels at
max. 1200mm centres. When lining engineered timber I
joists, please contact the joist manufacturer for advice.
ServicesThe cavity above the metal framework facilitates the
incorporation of services. Pipes and conduits should be
fixed in position before installing the framing. Where
lighting fittings, Gyproc Profilex Access Panels and similar
components are incorporated as part of the design
requirements, consideration must be given to maintaining
the integrity of the ceiling to meet fire resistance and
sound insulation requirements.
The installation of services should be in accordance with all
available standards, guidelines and recommendations.
FixturesFixings to the system should always be made into the
channels or to supplementary framing.
DESIGNFire protectionFor reaction to fire classifications for Gyproc and Glasrocboards please refer to Section .
Fire resistanceThe fire resistances given in Tables 2 - 3 are for imperforate
ceilings tested to BS 476: Part 8: 1972, or
BS 476: Part 21: 1987, or assessments based on these tests.
Sound insulationThe airborne and impact sound ratings given in Tables 2 - 3
are for imperforate ceilings and have been tested in
accordance with BS EN ISO 140-3 :1995, and rated in
accordance with BS EN ISO 717-1: 1997.
Airtightness is essential for optimum sound insulation.
While most junctions will be sealed with standard jointing
materials, gaps at the perimeter of the floor and ceiling,
and other small airpaths, can be sealed using Gyproc
Sealant.
The sound insulation data quoted was measured in the
absence of flanking transmission. The performance of the
floor in practice will generally be governed by flanking
transmission.
Thermal propertiesMoy Isover insulation can be laid over the suspension grid
to provide increased thermal insulation.
6.1
6.7
2.1
23
GypLyner™
Concealed grid ceiling lining system6.3
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 23
Control jointsGyproc Control Joints may be required in the ceiling to
relieve stresses induced by expansion and contraction of
the structure. The location of the control joints is at the
discretion of the specifier. It is recommended that they
coincide with movement joints within the structure.
FinishingPlease refer to section - Finishing Coat Plasters,
section - Jointing, and section - Decorative
Effects.
EstimatingThe estimated construction time is 3m2 / hour (single layer
ceiling) or 2 - 2.5m2 / hour (double layer ceiling) ready for
finishing.
1.5
2.2 2.4
CONSTRUCTION DETAILS
Fig 1 - Connection to timber joists using a Gypframe GL5
Timber Connector (one hole between screw fixings into
the joists).
Fig 2 - Connection to timber joists using a Gypframe GL6
Timber Connector (two holes between screw fixings into
the joists).
24
GypLyner™
Concealed grid ceiling lining system6.3
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book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 24
CONSTRUCTION DETAILS - CONTINUED
Fig 3 - Typical layout (12.5mm board on 450mm GL1 centres)
Fig 4 - Typical layout (15mm board on 600mm GL1 centres)
25
GypLyner™
Concealed grid ceiling lining system6.3
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 25
INTRODUCTION
GypFloor SILENT is a sound insulating floor system
designed for use in the residential sector. It is specified in
conversion or improvement work to upgrade an existing
timber joist floor to meet the acoustic requirements of
national Building Regulations. It is also used in new-build
to improve the internal environment by reducing sound
transmission through upper floors.
The system employs SIF Floor Channels with integral
resilient strips which are fitted over the top of floor joists.
Gyproc Plank is cut and fitted between the joists with the
cut ends resting on the channel flanges. Moy Plus Roll is
laid between the joists to rest on Gypframe Resilient Bars
which are fixed to the underside of the joists. Gyproc
boards are screw-fixed to the resilient bars to form the
ceiling. The floor is completed by screw-fixing floor
boarding through Gyproc Plank into one flange of the
metal channel section.
GypFloor SILENT provides a resiliently mounted floor layer
and ceiling lining. Mass and sound absorption are
provided within the floor zone which minimises the
thickness of the floor. The system is simple and economic
to install and access to services is easy where traditional
square edge floor boarding is used.
26
GypFloor SILENTSound insulating floor system
6.4
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27
GypFloor SILENTSound insulating floor system
6.4
Floor system installationFor joists 63mm or less, Gypframe SIF1 Floor Channel is
located centrally over the joists, leaving a 6mm clearance
gap at walls. Where joints in channel sections occur, sections
are butted together. Where joists run within 30mm of the
wall, Gypframe SIF2 Floor Channel is located in place of
Gypframe SIF1 Floor Channel. Gyproc Plank is cut to a neat
(not tight) fit between channels. Flooring is laid across the
channels and screw-fixed through the Gyproc Plank to the
channel flange on one side only, using Gypframe SIF5 Floor
Screws. It is important to ensure that no fixings are allowed
to connect the Gypframe floor channels to the joists.
When fixing to joists 64mm - 75mm in width, Gypframe
SIF4 Floor Channel is used in place of Gypframe SIF1 Floor
Channel. For joists over 75mm width, two Gypframe SIF2
Floor Channels (suitably overlapped) are installed.
Ceiling fixingGypframe RB1 Resilient Bars are fixed through their base
flange to each joist using Gyproc Drywall Screws. Resilient
bar noggings are fixed at perimeters. Moy Isover insulation
is laid between joists to rest on the resilient bars. Base layer
boards are fixed to resilient bars with their long edges at
right angles to the resilient bars. Face layer boards are fixed
through to all resilient bars. Select an appropriate screw
length to ensure that screws do not contact the joists.
INSTALLATION
January 2009 For current information, refer to www.gypsum.ie
For full installation details, refer to the Installation Guide at www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 02/12/2008 14:52 Page 27
GypFloor SILENTSound insulating floor system
6.4
28
Health and SafetySafety Data Sheets for all Gypsum Industries’ products areavailable to download from our website: www.gypsum.ie,or via the Technical Sales Department.
EnvironmentalGypFloor SILENT is unsuitable for use in areas subject to
continuously damp or humid conditions.
Plasterboards are not suitable for use in temperatures
above 49ºC but can be subjected to freezing conditions
without risk of damage.
COMPONENTS
Gyproc plasterboards
Table 1 - Dimensions
Type of board Thickness Widthmm mm
SoundBloc 12.5, 15 1200
FireLine 15 1200
Plank 19 600
Gypframe metal sections
SIF1 Floor Channel
Width Length
127mm 2000mm
SIF2 Floor Channel
Width Length
85mm 2000mm
SIF4 Floor Channel
Width Length
140mm 2000mm
RB1 Resilient Bar
Depth Length
16mm 3000mm
Gypframe SIF Floor Screws – 55mm long for fixing
floorboards through Gyproc Plank into the SIF floor
channel flange.
Gyproc Drywall Timber Screws – for fixing brackets to
timber supports.
Gyproc Drywall Screws – fixing boards to metal framing.
Gyproc Sealant – if required, sealing airpaths for
optimum sound insulation.
Gyproc jointing materials – for a seamless finish.
Gyproc Skimcoat, Carlite Finish or Gyproc BoardFinish – to provide a plaster finish.
For current information, refer to www.gypsum.ie January 2009
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 28
GypFloor SILENTSound insulating floor system
6.4
29
PERFORMANCE
Please refer to section - Introduction - for general considerations.6.1
Table 2 - Dimensions and performance1
1
Existing basic floor and ceiling
Detail Ceiling boards Fire Laboratory sound insulation Performanceresistance4 (100 - 3150Hz) substantiation
Airborne Impact reportmins Rw dB Lnw dB
Existing floor comprising 195mm x
45mm timber joists at 450mm centres
with 21mm softwood floor boarding.
Floor boarding lifted and replaced. Existing ceiling removed UPGRADING2
Floor boarding lifted and replaced. Existing ceiling retained
32 4 5
GypFloor SILENT
Comprising of 21mm softwood
floor boarding with Gyproc
Plank on Gypframe SIF Floor
Channels. 100mm Moy Plus
Roll in the cavity. Resilient
bars at 450mm centres. Ceiling
boards as below.
GypFloor SILENT
Comprising of 21mm softwood floor
boarding with Gyproc Plank on
Gypframe SIF Floor Channels.
100mm Moy Plus Roll
in the cavity. GypLyner ceiling
framework to joists (old nails may be
left in position on underside of
joists). Ceiling boards as below
GypFloor SILENT
Comprising of 21mm T&G floor boarding
(or 20mm square edge boarding topped
with 3mm hardboard) with Gyproc Plank
on Gypframe SIF Floor Channels. Cavity
bridged between joists2 by 12.5mm
Glasroc F MultiBoard resting on 100mm x
12.5mm Glasroc F MultiBoard strips screw-
fixed to each joist flush with bottom edge
at 300mm centres. 100mm Moy Plus Roll
in the cavity. Ceiling boards as below.
GypFloor SILENT
Comprising of 21mm floor
boarding with Gyproc Plank
on Gypframe SIF Floor
Channels. 100mm Moy Plus
Roll in the cavity. Ceiling
boards as below.
Existing layer of 12.5mm Gyproc plasterboard 30 (modified) 36 82 C014036
Simulated lath and plaster ceiling (one layer of Gyproc Plank 30 (modified) 40 76 C014037and one layer of 12.5mm Gyproc plasterboard)3
Simulated lath and plaster ceiling (one layer of Gyproc Plank 30 54 63 C204004and one layer of 12.5mm Gyproc plasterboard)3
Existing 12.5mm plasterboard ceiling overboarded with one 30 54 63 C204005layer of 12.5mm Gyproc SoundBloc
Two layers 15mm Gyproc SoundBloc 60 61 56 C204006
Inner layer of Gyproc Plank, outer layer of 12.5mm Gyproc SoundBloc 60 63 55 C204001
Inner layer of Gyproc Plank, outer layer of 12.5mm Gyproc SoundBloc 60 63 55 C154008
Simulated lath and plaster ceiling (one layer of Gyproc Plank 60 54 63 G104032and one layer of 12.5mm Gyproc plasterboard)3
Existing 12.5mm plasterboard ceiling overboarded with one 60 54 63 C204007layer of 15mm Gyproc FireLine
Two layers of 15mm Gyproc FireLine 90 60 57 C204002
1 The fire resistance and sound insulation performances are for imperforate ceilings with all joints taped and filled in accordance with GypsumIndustries’ recommendations. The quoted performances are achieved only if Gypsum Industries’ components are used throughout, and theCompany’s fixing recommendations are strictly adhered to. Any variation in the specification should be checked with Gypsum Industries.2 Minimum 50mm width.3 Linings to simulate a lath and plaster ceiling in good condition.4 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
3
2
4
5
1
1
5
5
2
2
2.2
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 29
Fire protectionFor reaction to fire classifications for Gyproc and Glasrocboards please refer to Section .
Fire resistanceThe fire resistances given in Table 2 are for imperforateceilings tested to BS 476: Part 8: 1972, or BS 476: Part 21: 1987, or assessments based on these tests.
Sound insulationThe airborne and impact sound ratings given in Table 2 arefor imperforate ceilings and have been tested inaccordance with BS EN ISO 140-3: 1995, and rated inaccordance with BS EN ISO 717-1: 1997.
Airtightness is essential for optimum sound insulation.While most junctions will be sealed with standard jointingmaterials, gaps at the perimeter of the floor and ceiling,and other small airpaths, can be sealed using GyprocSealant.
The sound insulation data quoted was measured in theabsence of flanking transmission. The performance of thefloor in practice will generally be governed by flankingtransmission.
Site measurements on GypFloor SILENT installed betweenflats have indicated that the level of sound insulationexpected from separating floors and their surroundingstructure can be achieved. For site measurement data,please contact the Technical Sales Department.
Planning - key factorsThe system will add 7mm to the level of the top of thejoists. The finished surface of the applied ceiling liningswill be 48mm from the underside of the joists whenGypframe RB1 Resilient Bar and a layer of Gyproc Plankplus 12.5mm SoundBloc are applied. When two layers of15mm board are specified that dimension will be 46mm.Ceiling linings should be fixed prior to any installation ofdry lining or plastering on walls. If this is not possible,ceiling linings should properly butt against the wallsurface. In refurbishment work the level of existing joistsshould be checked. If there is misalignment, considerationshould be given to using a GypLyner or CasoLine MF
suspended ceiling to support the ceiling boards, and theyshould be level and straight for the flooring applications.
Structural1
The system is primarily intended for timber floors with anintensity of distributed load of up to 5.0kN/m2, and aconcentrated load of 4.5kN. An increase in the mass of thefloor will result from upgrading. The load capacity of thesupporting floor joists should therefore be checked, withdue consideration to the effects of lateral buckling and theneed for intermediate restraints. This may be particularlyimportant where the system is to be used in conjunctionwith engineered timber ‘I’ joists.
Engineered Timber I JoistsPlease contact the joist manufacturer for advice.
ServicesThe installation of services within the floor zone should becarried out so as to allow easy access from above andshould, where possible, follow the line of the floor joists.The use of square edge flooring will allow easy access toservices.
Services should be installed in accordance with all availablestandards, guidelines and recommendations.
FinishingPlease refer to section - Finishing Coat Plasters, section
- Jointing and section - Decorative effects.
EstimatingThe estimated construction time is 0.5m2 / hour ready forfinishing.
1 Gypsum Industries acknowledges the help of TJM Europe inpreparing this statement.
DESIGN
Please refer to section - Introduction - for general
considerations.
6.1
1.52.2 2.4
2.1
30
GypFloor SILENTSound insulating floor system
6.4
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31
GypFloor SILENTSound insulating floor system
6.4
Fig 1 - Cut-away floor plan (chipboard flooring)
CONSTRUCTION DETAILS
Fig 2 - Cut-away ceiling plan (12.5mm x 1200mm x 2700mm Gyproc SoundBloc over Gyproc Plank fixed to
Gypframe RB1 Resilient Bars)
450mm
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book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 31
Fig 3 - Typical section through floor
Fig 4 - Section through floor - joist width over 75mm Fig 5 - Perimeter junction
Fig 6 - Typical hearth construction floor boarding plugged
and screwed through packer into concrete
Fig 7 - Non-loadbearing partition (space division) sited
over joists
32
GypFloor SILENTSound insulating floor system
6.4
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33
Notes
January 2009 For current information, refer to www.gypsum.ie
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Timber joists ceilings and separating / compartment floors6.5
34 For current information, refer to www.gypsum.ie January 2009
INTRODUCTION
Ceilings to timber joist floors are an established form of
ceiling construction, which is widely used in both new
housing and refurbishment. Separating / compartment
floors are often specified as fire and sound resisting floors
in residential units such as flats and apartments to meet
the requirements of national Building Regulations.
The ceilings comprise one or two layers of Gyproc
plasterboard screw-fixed or nailed to traditional timber
joist supports. Moy glass mineral wool insulation can be
included in the floor cavity to improve acoustic
performance.
Timber joist ceiling linings are quick and easy to install,
and provide a lining which can be jointed to give a
seamless finish ready for direct decoration or a traditional
gypsum plaster finish.
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Timber joists ceilings and separating / compartment floors 6.5
35January 2009 For current information, refer to www.gypsum.ie
Direct fix plasterboard ceilingBoards are fixed to ceilings, prior to lining walls and
partitions, with the long edges at right angles to the joists.
Cut-ends are located over a joist or timber nogging
support. Timber noggings (where required) are fitted
between joists at room perimeters to support board edges.
Noggings may also be required to support board edges in
the field of the boards. Boards are preferably fixed to
timber supports using Gyproc Drywall Timber Screws, to
minimise fixing defects.
Indirect fix to Gypframe RB1 Resilient BarsThe bars are fixed through the single fixing flange to the
underside of timber joists (at 90° to them) using Gyproc
Drywall Screws. The first and last rows of Gypframe RB1
Resilient Bars are located at all wall perimeters. Boards are
fixed to the underside of Gypframe Resilient Bars with long
board edges at right angles to the bars. When fixing
boards, care must be taken to ensure that the plasterboard
fixing screws do not make contact with the joists.
INSTALLATION
For full installation details, refer to the Installation Guide at www.gypsum.ie
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36
Timber joist ceilings and separating / compartment floors6.5
Health and SafetySafety Data Sheets for all Gypsum Industries’ products areavailable to download from our website: www.gypsum.ie,or via the Technical Sales Department.
EnvironmentalGyproc plasterboard ceilings are unsuitable for use in areas
subject to continuously damp or humid conditions.
Plasterboards are not suitable for use in temperatures
above 49ºC but can be subjected to freezing conditions
without risk of damage.
COMPONENTS
Gyproc and Glasroc plasterboards
Table 1 - Dimensions
Type of board Thickness Widthmm mm
Gyproc WallBoard1 9.5, 12.5, 900, 120015mm 1200
Gyproc SoundBloc 12.5, 15 1200
Gyproc FireLine1 12.5, 15 1200
Gyproc Moisture Resistant 12.5, 15 1200
Gyproc Plank 19 600
Glasroc F MultiBoard 6, 10, 12.5 1200
Glasroc F FireCase S 15, 20 600, 120025, 30 1200
1 1200mm wide boards also available in DUPLEX grades if vapourcontrol is required.
Gypframe metal sections
RB1 Resilient Bar - Length
providing acoustic 3000mm
isolation.
Gyproc Drywall Timber Screws , Glasroc FireCaseScrews or Gyproc Nails – fixing plasterboards to timber
framing.
Gyproc Drywall Screws – fixing plasterboards to metal
framing and timber.
Gyproc Sealant – if required, sealing airpaths for
optimum sound insulation.
Gyproc jointing materials – for a seamless finish.
Gproc Skimcoat, Carlite Finish or Gyproc Board Finish –
to provide a plaster finish.
Moy Acoustic Partition Rollor
Moy Plus Roll
Rock mineral wool (by others)
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37
Timber joists ceilings and separating / compartment floors 6.5
January 2009 For current information, refer to www.gypsum.ie
PERFORMANCE
Please refer to section Introduction - for general considerations.6.1
Table 2 - Dimensions and performance1 - Gyproc plasterboard linings
1 32
Timber joists with suitable timber room perimeter noggings. Noggings also required to support
board edges, unless otherwise stated.
Gypframe RB1 ResilientBars at 450mm centres to
underside of joists.100mm Moy Plus Roll in
the cavity.
Detail Board type Flooring Joist Joist Fire Estimated laboratory Performanceboard centres width resistance6 sound insulation3 substantiationtype2 (min.) 100 - 3150Hz report
Airborne Impactmm mm mins Rw dB Lnw dB
One layer of 12.5mm Gyproc WallBoard d 450 38 305 36 81 C014003
One layer of 12.5mm Gyproc WallBoard a 600 38 30 (modified)4 38 79 C016001
One layer of 12.5mm Gyproc WallBoard d 600 38 30 38 79 C016002
One layer of 15mm Gyproc WallBoard c 600 38 305 40 - C106029
Two layers of 15mm Gyproc WallBoard d 600 47 60 40 76 C016006
Inner layer of 12.5mm Gyproc WallBoard c 600 38 60 40 76 C016008and an outer layer of 15mm Gyproc FireLine
Two layers of 12.5mm Gyproc FireLine d 600 38 60 40 76 C016009
Inner layer of Gyproc Plank and an outer b 600 50 60 40 75 C016007layer of 12.5mm Gyproc WallBoard
Inner layer of Gyproc Plank and an outer d 600 45 60 50 68 C206003layer of 12.5mm Gyproc WallBoard
Inner layer of Gyproc Plank and an outer d 600 45 60 54 67 C016030layer of 12.5mm Gyproc SoundBloc
Two layers of 15mm Gyproc FireLine d 450 47 90 40 78 C014011
1 The fire resistance and sound insulation performances are for ceilings incorporating tapered edge boards with all joints taped and filledaccording to Gypsum Industries’ recommendations. The quoted performances are achieved only if Gypsum Industries’ components areused throughout, and the Company’s fixing recommendations are strictly observed. Any variations in the specification should be checkedwith Gypsum Industries. Where boards are fixed direct to timber joists, screw-fixing is the preferred alternative to nail-fixing andminimises the risk of fixing defects occuring.2 Floor types: a Any structurally suitable wood board flooring.
b Wood board t & g flooring, not less than 15mm (finished) thickness.c Wood board t & g flooring, not less than 18mm (finished) thickness.d Wood board t & g flooring, not less than 21mm (finished) thickness.
3 The acoustic ratings quoted above are based on 200mm deep joists and a walking surface of min. 9.6kg/m3.4 30 : 15 : 15. If the floor type d is used the fire resistance increases to a full 30 minutes.5 Noggings to support board edges not required.6 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full details.
1
1
1
1
2
2
2
2
2
3
3
2.2
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1 32
Table 3 - Dimensions and performance1 - non-combustible board linings
4 65
Detail Board type Flooring Joist Joist Insulation Fire Performanceboard centres width resistance5 substantiationtype2 (min.) report
mm mm mins
One layer of 6mm MultiBoard b 450 38 - 30 G104019
One layer of 12.5mm MultiBoard a 600 38 - 30 G106021
1 The fire resistance performances are for imperforate ceilings with all joints taped and filled in accordance with Gypsum Industries’recommendations. The quoted performances are achieved only if Gypsum Industries’ components are used throughout, and the Company’sfixing recommendations are strictly observed. Any variations in the specifications should be checked with Gypsum Industries. Where boardsare fixed direct to timber joists, screw-fixing is the preferred alternative to nail-fixing and minimising the risks of fixing defects occurring.2 Floor types: a 21mm plain edge wood board flooring.
b Wood board t & g flooring, not less than 18mm (finished) thickness.c Wood board t & g flooring, not less than 19mm (finished) thickness.d Wood board t & g flooring, not less than 20mm (finished) thickness, or 20mm plain edge boarding with 3mm
hardboard or plywood.3 Use 58mm FireCase Screws at 150mm centres. 38mm x 38mm timber noggings are also required between joists and at the perimeter tosupport board edges.4 Noggings to support board edges not required.5 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full details.
Two layers of 10mm MultiBoard a 600 47 - 60 G106022
Two layers of 10mm MultiBoard a 600 47 100mm Moy 60 G106023Plus Roll
80mm x 10mm MultiBoard strips b 4004 50 30mm stone mineral 60 G104024(screw-fixed), with one layer of 10mm wool (64kg/m3)Glasroc MultiBoard (screw-fixed)
80mm x 10mm MultiBoard strips c 600 50 60mm stone mineral 60 G106046(screw-fixed), with one layer of 10mm wool (23kg/m3)MultiBoard (screw-fixed)
One layer of 15mm FireCase S b 600 38 - 60 G106025(screw-fixed)3
100mm x 10mm MultiBoard strips d 6004 38 25mm stone mineral 60 G106026(screw-fixed), with one layer of 12.5mm wool (48kg/m3)MultiBoard (screw-fixed)
One layer of 12.5mm MultiBoard, d 6004 38 - 90 G106027100 x 10mm MultiBoard strips andan outer layer of 12.5mm MultiBoard
One layer of 12.5mm MultiBoard, d 6004 38 100mm Moy 90 G106028100 x 10mm MultiBoard strips and Plus Rollan outer layer of 12.5mm MultiBoard
Timber joists with suitable timber room perimeter noggings.Noggings also required to support board edges, unless stated otherwise.
1
1
1
2
3
4
4
4
5
6
2.2
38
Timber joist ceilings and separating / compartment floors6.5
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Timber joists ceilings and separating / compartment floors 6.5
January 2009 For current information, refer to www.gypsum.ie
19mm Gyproc Bonding or with 2mm c 600 48 120 C016045Gyproc Skimcoat or Carlite Finish
Table 4 - Dimensions and performance1 - upgrading existing lath and plaster ceilings
1 32 4
Existing lath and plasterceiling supported bychicken wire securelynailed to the joists,
battened with 38mm x38mm timber (at 600mmcentres with noggings or450mm centres without
noggings).
Existing ceilingunderdrawn with
metal lath2 securelyfixed to the joists.
Existing lath and plasterceiling (up to 20mmthick) supported by
chicken wire securelynailed to the joists.
Existing ceilingremoved and metal
lath2 securely fixed tothe joists.
Detail Board type Flooring Joist Joist Fire Performanceboard centres width resistance7 substantiationtype3 (min.) report
mm mm mins
One layer of 12.5mm Gyproc WallBoard d 600 38 30 C016019
1 The fire resistance performances are for imperforate ceilings incorporating boards with all joints taped and filled according to GypsumIndustries’ recommendations. The quoted performances are achieved only if Gypsum Industries’ components are used throughout, and theCompany’s fixing recommendations are strictly observed. Any variations in the specifications should be checked with Gypsum Industries.Where boards are fixed direct to timber joists, screw-fixing is the preferred alternative to nail-fixing and minimises the risk of fixingdefects occurring.2 Where plaster is applied to ribbed metal lath, the plaster thickness is measured from the face of the lath, and the lath should be installedin accordance with the manufacturer’s recommendations. With 120 minutes fire resistance construction, the metal lath is independentlyfixed with wire supports from the joist sides.3 Floor types: a Wood board t & g flooring, not less than 20mm (finished) thickness, or 20mm plain edge boarding with 3mm
hardboard or plywood.b Wood board t & g flooring, not less than 21mm (finished) thickness, or 20mm plain edge boarding with 3mm
hardboard or plywood.c Wood board t & g flooring, not less than 22mm (finished) thickness, or 20mm plain edge boarding with 3mm
hardboard or plywood.d Any structurally suitable wood board flooring.
4 Assumes no contribution from the existing lath and plaster ceiling.5 Bridging comprises of a layer of 12.5mm Gyproc MultiBoard resting on 100mm x 12.5mm Gyproc MultiBoard strips which are screw-fixedto the sides of each joist flush with the bottom edge, strips fixed at 300mm centres, top and bottom.6 Fix MultiBoard strips at 300mm centres, top and bottom.7 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full details.
Two layers of 12.5mm Gyproc FireLine b 600 38 60 C016022
13mm Gyproc Bonding or with 2mm b 600 37 60 C016024Gyproc Skimcoat or Carlite Finish
Two layers of 10mm MultiBoard b 600 37 60 G106045
100mm x 10mm MultiBoard a 600 50 60 G106029with one layer of 12.5mm MultiBoard
1
1
1
2
3
4
2.2
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 39
Two layers of 15mm Gyproc FireLine b 450 45 90 60 57 C204002
4 5
Platform floor. 100mm Moy Plus Roll
between the joists. Floor type c3
Platform floor.
CasoLine MF4 hung underneath timber
joists to give a 277mm cavity, with
80mm Moy Plus Roll
between the joists. Floor type c3
GypFloor SILENT with Gyproc Plank on
Gypframe SIF Floor Channels. 100mm
Moy Plus Roll in the cavity. Gypframe
RB1 Resilient bars at 450mm centres.
Table 5 - Dimensions and performance1 - compartment / separating2 floors
1 32
Separating sub-joist floor
comprising of a platform floor.
100mm Moy Plus Roll in the cavity. Floor type c3
GypFloor SILENT with Gyproc Plank on
Gypframe SIF Floor Channels.
100mm Moy Plus Roll in the cavity.
GypLyner framework to joists.
Detail Board type Flooring Joist Joist Fire Estimated laboratory Performanceboard centres width resistance5 sound insulation substantiationtype2 (min.) 100 - 3150Hz report
Airborne Impactmm mm mins Rw dB Lnw dB
One layer of Gyproc Plank with an outer c 600 44 60 62 56 C016038layer of 12.5mm Gyproc SoundBloc
Two layers of 15mm Gyproc SoundBloc c 600 44 60 66 50 C106011
Two layers of 15mm Gyproc SoundBloc b 450 45 60 61 56 C204006
One layer of Gyproc Plank and one layer b 450 45 60 63 55 C204001of 12.5mm Gyproc SoundBloc
One layer of Gyproc Plank and one layer b 450 45 60 63 55 C154008of 12.5mm Gyproc SoundBloc
Two layers of 15mm Gyproc SoundBloc c 600 47 60 664 48 C106050
1 The fire resistance and sound insulation performances are for ceilings incorporating tapered edge boards with all joints taped and filledaccording to Gypsum Industries’ recommendations. The quoted performances are achieved only if Gypsum Industries’ components areused throughout, and the Company’s fixing recommendations are strictly observed. Any variations in the specification should be checkedwith Gypsum Industries’. Where boards are fixed direct to timber joists, screw-fixing is the preferred alternative to nail-fixing andminimises the risk of fixing defects occuring.2 If in doubt as to whether a floor is to be a compartment or separating floor, or both, please refer to the relevant Technical Guidance Document.3 Floor types: a Any structurally suitable wood board flooring.
b Softwood floor boarding, not less than 21mm (finished) thickness.c Walking surface of 18mm t & g wood board flooring, spot-bonded with Gyproc Sealant at 300mm centres to
a substrate of Gyproc Plank laid on 25mm Moy Sound Deadening Floor Slabs (64kg/m3) laid on a minimumof 12mm wood based sheet sub-deck nailed to the joists.
4 Normal fixing centres for Gypframe MF5 Ceiling sections (450mm) and Gypframe MF7 Primary Support Channels (1200mm).5 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full details.
1
2
3
3
3
4
5
2.2
40
Timber joist ceilings and separating / compartment floors6.5
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Timber joists ceilings and separating / compartment floors 6.5
January 2009 For current information, refer to www.gypsum.ie
Two layers of 10mm Gyproc MultiBoard 600 354 150mm Moy 60 G106042Plus Roll
Two layers of 12.5mm Gyproc FireLine 600 38 150mm stone mineral 60 C106048Wool (24kg/m3)
Two layers of 15mm Gyproc FireLine 600 354 30mm stone mineral 60 C106051Wool (45kg/m3)
Table 6 - Dimensions and performance1 - upgrading sound insulation of a basic floor
1 32
195mm x 45mm timber joists at
600mm centres with 18mm t&g
wood chipboard flooring.
CasoLine MF hung underneath the basic
floor (ceiling removed) to give a
277mm cavity. 80mm Moy Plus
Roll in the cavity.
CasoLine MF hung from the basic floor
using Gypframe Acoustic Hangers to
give a 277mm cavity. 80mm
Moy Plus Roll in the cavity.
UpgradingExisting basic floor
Detail Board type Approximate Floor Laboratory sound insulation Performanceweight depth 100 - 3150Hz substantiation
Airborne Impact reportkg/m2 mm Rw dB Lnw dB
Existing layer of 12.5mm Gyproc plasterboard 10 226 38 79 C106028
Two layers of 12.5mm Gyproc SoundBloc 23 320 60 60 C106007
Two layers of 12.5mm Gyproc SoundBloc 23 320 63 54 C106013
1 The sound insulation performances are for imperforate ceilings with all joints taped and filled according to Gypsum Industries’recommendations. The quoted performances are achieved only if Gypsum Industries’ components are used throughout, and theCompany’s fixing recommendations are strictly observed. Any variations in the specifications should be checked with Gypsum Industries.
1
2
3
Table 7 - Dimensions and performance2 – ceilings below roof spaces
1 32 4
Detail Board type Max. joist/ Min. joist / Insulation Fire Performancetruss centres truss type resistance5 substantiation
width reportmm mm mins
One layer of 12.5mm MultiBoard 600 38 150mm Moy 30 G106041Plus Roll
Two layers of 12.5mm Gyproc WallBoard 600 38 150mm Moy 30 C106049
Plus Roll
One layer of 12.5mm Gyproc FireLine 600 38 150mm Moy 30 C106047Plus Roll
Two layers of 12.5mm Gyproc WallBoard 600 354 100mm Moy 30 C106045
2 The fire resistance performances are for imperforate ceilings incorporating boards with all joints taped and filled according to BritishGypsum’s recommendations. The quoted performances are achieved only if Gypsum Industries components are used throughout, and theCompany’s fixing recommendations are strictly adhered to. Any variations in the specifications should be checked with British Gypsum. Whereboards are fixed direct to timber joists, screw-fixing is the preferred alternative to nail-fixing and minimises the risk of fixing defects occuring.3 For fire-rated ceilings below roof spaces, noggings are required regardless of joist spacings and plasterboard thickness.4 Nominal 50mm x 25mm timber battens should be fixed to the side of timber supports where the ceiling boards butt in order to maintain anadequate bearing surface.5 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer tosection for full details.
1
1
2
2
3
4
4
Timber joists or bottom chord of trusses with timber noggings between joists to support board edges and at room perimeter.3
Insulation laid between joists.CasoLine MF hung from joists.
Insulation laid over ceiling grid.
2.2
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 41
Fire protection For reaction to fire classifications for Gyproc and Glasrocboards please refer to Section .
Fire resistanceThe fire resistances given in Tables 2, 3, 4, 5, 6 and 8 are for
imperforate ceilings tested to BS 476: Part 8: 1972 or
BS 476: Part 21: 1987, or BS 476: Part 22: 1987, or
assessments based on these tests.
Sound insulationThe airborne and impact sound ratings given in Tables
2, 6 and 7 are for imperforate ceilings and have been
tested in accordance with BS EN ISO 140-3: 1995 and
BS EN ISO 140-6: 1998, and rated in accordance with
BS EN ISO 717-1: 1997 and BS EN ISO 717-2: 1997.
Airtightness is essential for optimum sound insulation.
While most junctions will be sealed with standard jointing
materials, gaps at the perimeter of the floor and ceiling,
and other small airpaths, can be sealed using Gyproc
Sealant.
The sound insulation data quoted was measured in the
absence of flanking transmission. The performance of the
floor in practice will generally be governed by flanking
transmission.
Water vapour controlWhere there is a requirement for a vapour control layer,
DUPLEX grade boards should be specified as the face layer
(i.e. the second layer in double layer linings). The
application of two coats of Gyproc Drywall Sealer to the
face lining will also provide a degree of vapour control.
Please refer also to Timber noggings overleaf.
Thermal propertiesMoy Isover insulation is laid between the joists where
required to provide the specified standard of thermal
insulation.
DESIGN
Please refer to section Introduction - for general
considerations.
Planning - key factorsTo minimise the risk of ceiling finish defects occurring,
seasoned timber with a moisture content not exceeding
that recommended in BS 5268: Part 2: 2002 should be used.
The contractor should ensure that timber supports are
accurately spaced, aligned, and levelled. Consideration
should be given to using Gyproc Drywall Timber Screws as
the preferred method of fixing.
Cavity barriersCavity barriers may be required to satisfy the requirements
of national Building Regulations. Please refer to section
- Cavity barriers.
Strength and robustnessTimber should be aligned and level, and should meet the
requirements of BS 5268: Part 2: 2002. The dimensions and
assembly of timber supports should be sufficient to allow
positive fixing of boards without bounce or undue
deflection due to nailing, screwing, or other applied force.
When the minimum joist width conditions cannot be met, a
timber batten should be securely fixed to the side of those
timber supports where ceiling boards butt in order to
increase the bearing surface. Please refer to Joist width
overleaf.
Where plasterboards are fixed at maximum centres in
adverse conditions the standard of lining can be affected.
Adverse conditions can generally be described as conditions
where high humidity occurs, principally in the cold, damp,
autumn / winter period. They also refer to buildings under
construction during this period where both the structure
and wet applications such as plastering and screeding are
subject to slow drying conditions.
Where a polyethylene vapour control layer is included in
the ceiling construction in conditions described previously,
condensation can form on the polyethylene surface. This
can result in plasterboard becoming unduly damp, and
affecting the standard of acceptability of the lining and
any applied plaster or textured coating.
6.1
6.7
2.1
42
Timber joist ceilings and separating / compartment floors6.5
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Timber joists ceilings and separating / compartment floors 6.5
January 2009 For current information, refer to www.gypsum.ie
Imposed loadsThe designer should ensure that the floor construction is
suitable to support any imposed loads.
Timber noggingsSuitable timber noggings, normally 38mm x 38mm, may be
required between joists and at the room perimeter to
support board edges and board ends. The provision of
noggings depends on the thickness of boards used, and the
spacing of timber joists (please see Table 8). In addition, the
need for noggings is also dependent on any fire resistance
requirements, so Tables 2 and 7 must be referred to.
Timber noggings should always be provided at the room
perimeter except when using 15mm board or 19mm Gyproc
Plank in non-fire rated situations. When fixing DUPLEX grade
boards providing vapour control noggings are required
regardless of joist spacing or board thickness in order to
ensure that vapour control integrity is maintained.
In multi-layer plasterboard ceilings, the provision of
noggings relates to the outer layer board only, unless
otherwise stated.
Nail poppingLoosening of nails in timber can occur through timber
shrinkage (please see Fig 7), or as a result of fixing boards
to misaligned or twisted framing. To reduce the risks,
boards should be fixed tight to framing members.
To minimise any risk of fixing defects occurring use Gyproc
Drywall Timber Screws. If nails are the preferred fixing
method, the risk of subsequent fixing defects can occur.
Fixing to super-dried timber and engineered ‘I’ beamsIt has been established by test that Gyproc Drywall Timber
Screws are the best solution for fixing to standard softwood,
super-dried timber (approximately 12% moisture content).
If engineered I joists are to be used, please contact the joist
manufacturer for fire resistance and sound insulation claims
and for fixing recommendations.
ServicesElectrical and other small service runs can be routed within
the floor cavity. Services should be installed in accordance
with standards, guidelines and recommendations.
Fixtures / fittingsFixtures should be made into joists, or to supplementary
timber.
FinishingPlease refer to section - Finishing Coat Plasters,
section - Jointing, and section - Decorative
Effects.
EstimatingThe estimated construction time is 15 - 20m2 / hour (single
layer ceiling - boarding only) or 8 - 10m2 / hour (double
layer ceiling - boarding only) ready for finishing.
Table 8 - Provision of timber noggings*
Board Maximum joist centresthickness with noggings without noggingsmm mm mm
6 MultiBoard 450 400
9.5 & 10 450 400
12.5 600 450
15 & 19 600 600
*Tables 2 to 7 must also be referred to for fire resistant ceilings.
2.2
1.5
2.4
Joist widthWhere joist width is less than the minimum stated in Tables 2 - 7, the system may not meet its specifiedperformance.
If the minimum fixing tolerances cannot be met, 50mm x
25mm timber battens should be screw-fixed to the side of
the joists where ceiling boards abut in order to extend the
bearing surface.
Fixing to timber framesA technical information sheet is available to download
from our website: www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 43
CONSTRUCTION DETAILS
Fig 1 - Joists at 450mm centres using 12.5mm Gyproc WallBoard - board edge noggings not required unless stated in
performance tables*
900mm
1800mm 450mm
Fig 2 - Joists at 600mm centres using 12.5mm Gyproc WallBoard - board edge noggings required unless stated in
performance tables*
1200mm
2400mm 600mm
* Note: where Duplex grade boards are specified to provide vapour control, noggings are always required regardless of joist spacingand plasterboard thickness.
* Note: where Duplex grade boards are specified to provide vapour control, noggings are always required regardless of joist spacingand plasterboard thickness.
Room perimeter noggings required.
Room perimeter noggings required.
44
Timber joist ceilings and separating / compartment floors6.5
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45
Timber joists ceilings and separating / compartment floors 6.5
January 2009 For current information, refer to www.gypsum.ie
Fig 3 - Joists at 600mm centres using 15mm Gyproc WallBoard - board edge noggings not required unless stated in the
performance tables. Room perimeter noggings not required in non-fire rated situations*.
2400mm 600mm
1200mm
Fig 4 - Twisting of standard soft wood timber joist on drying from 20% to 8% moisture content
* Note: where Duplex grade boards are specified to provide vapour control, noggings are required regardless of joist spacing andplasterboard thickness.
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:03 Page 45
Fig 5 - Fixing boards to trussed rafters
Fig 6 - Fixing tolerances1
35mm 25mm
6mmminimum
A
Table 9 - Fixing plasterboard to timber supports
Board Gyproc Drywall Timber Gyproc Nails to fixthickness Screws to fix board for plasterboard for direct
direct decoration or decoration orplastering plastering
mm mm mm
9.5 32 3012.5 38 4015 38 4019 41 5012.5 over 12.5 51 5012.5 over 19 60 6515 over 15 60 6515 over 19 60 65
1 Boards should be lightly butted with a maximum separation of3mm. Where a cut edge occurs, dimension ‘A’ is 13mm minimum,.Where a bound edge occurs, dimension ‘A’ would be 10mmminimum.
46
Timber joist ceilings and separating / compartment floors6.5
For current information, refer to www.gypsum.ie January 2009
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47
Ceiling Boards, Tiles and Planks 6.6
January 2009 For current information, refer to www.gypsum.ie
Geometric design, perforated boards with a special sound
absorbent tissue backing, provide a jointless finish that is
ready for on-site decoration. All Gyptone boards are capable
of giving sound insulation performance up to Dncw = 39dB.
LINE 6
Edge Nominal Weightprofile size mm kg/m2
Tapered 2400 x 1200 x 12.5 8
LINE 7 BASE
Curve Curve
Edge Nominal Weightprofile size mm kg/m2
Tapered 2400 x 900 x 6.5 5 (LINE 7)
6 (BASE)
QUATTRO 41
Edge Nominal Weightprofile size mm kg/m2
Tapered 2400 x 1200 x 12.5 8
QUATTRO 46
Edge Nominal Weightprofile size mm kg/m2
Tapered 2400 x 1200 x 12.5 8
QUATTRO 47
Edge Nominal Weightprofile size mm kg/m2
Tapered 2400 x 1200 x 12.5 8
Gypsum Industries’ ceiling systems create a new flexibility indesign and construction. Additional informationis available upon request, contact the ‘Technical SalesDepartment’. The wide range of products give fresh andcreative freedom for interior designers, enabling them to fullyrealise the visual and acoustic ambience of their designs. Forfull details on our ceilings range, please refer to the GyprocCeilings Guide. The products are available in six edge profilesas shown below.
CEILING PRODUCTS
A E15
E15/A E24
D1 Tapered
A vinyl faced, wipe clean tile ideal for use in hygenic areas,
with Gyprex BIO containing an active Biocide.
SATINSPAR
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
A 1200 x 600 x 8 6.9
BIO
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
GYPREX
GYPTONE BOARDS
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48
Ceiling Boards, Tiles and Planks6.6
Decorative, perforated and pre-finished gypsum suspended ceiling tiles with integral sound absorbent backing tissue.
BASE 31
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 12.5 9
D1 600 x 600 x 12.5 9
E15 600 x 600 x 12.5 9
LINE 4
Edge Nominal Weightprofile size mm kg/m2
E15 600 x 600 x 12.5 8
QUATTRO 20Edge Nominal Weightprofile size mm kg/m2
D1 600 x 600 x 12.5 8
E15 600 x 600 x 12.5 8
QUATTRO 22
Edge Nominal Weightprofile size mm kg/m2
D1 600 x 600 x 12.5 8
E15 600 x 600 x 12.5 8
POINT 11
Edge Nominal Weightprofile size mm kg/m2
E15 600 x 600 x 12.5 8
POINT 12Edge Nominal Weightprofile size mm kg/m2
E15 600 x 600 x 12.5 8
BASE 33
Edge Nominal Weightprofile size mm kg/m2
E15/A 1800 x 300 x 12.5 9
E15/A 2100 x 300 x 12.5 9
LINE 8
Edge Nominal Weightprofile size mm kg/m2
E15/A 1800 x 300 x 12.5 8
E15/A 2100 x 300 x 12.5 8
QUATTRO 55
Edge Nominal Weightprofile size mm kg/m2
E15/A 1800 x 300 x 12.5 8
E15/A 2100 x 300 x 12.5 8
POINT 15
Edge Nominal Weightprofile size mm kg/m2
E15/A 1800 x 300 x 12.5 8
E15/A 2100 x 300 x 12.5 8
GYPTONE TILES
GYPTONE PLANKS
Decorative, perforated and pre-finished gypsum suspended ceiling planks with integral sound absorbent backing tissue.
For current information, refer to www.gypsum.ie January 2009
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49
Ceiling Boards, Tiles and Planks 6.6
January 2009 For current information, refer to www.gypsum.ie
CASOPRANO
ROC - plain white.
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
E15 600 x 600 x 9.5 7.9
E24 600 x 600 x 9.5 7.9
STAR - lightly pinned.
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
E15 600 x 600 x 9.5 7.9
E24 600 x 600 x 9.5 7.9
BIANCA - fine granulated texture.
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
E15 600 x 600 x 9.5 7.9
E24 600 x 600 x 9.5 7.9
OLA - perforated (sound absorbing).
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.5
E15 600 x 600 x 9.5 7.2
A range of pre-finished white gypsum tiles in a choice of smooth or textured finishes, with perforated or un-perforated
versions for sound absorption or insulation.
ALTO - perforated (sound reflecting).
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
E15 600 x 600 x 9.5 7.9
NOVA - perforated (sound absorbing).
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.5
E15 600 x 600 x 9.5 7.2
FORTE - fissured (sound reflecting).
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.9
E15 600 x 600 x 9.5 7.9
E24 600 x 600 x 9.5 7.9
VOICE - fissured (sound absorbing).
Edge Nominal Weightprofile size mm kg/m2
A 600 x 600 x 8 6.5
E15 600 x 600 x 9.5 7.2
E24 600 x 600 x 9.5 7.2
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50
Ceiling Boards, Tiles and Planks6.6
RIGITONE
8 / 18
Edge Nominal Weightprofile size mm kg/m2
Square 1998 x 1188 x 12.5 10
10 / 23
Edge Nominal Weightprofile size mm kg/m2
Square 2001 x 1196 x 12.5 10
15 / 30
Edge Nominal Weightprofile size mm kg/m2
Square 2010 x 1200 x 12.5 9.5
Gypsum boards perforated with regular or random patterns with sound absorbent tissue backing. Provides a monolithic
appearance ready for on-site decoration. Boards can be dry curved to a minimum radius of 5000mm.
12 - 20 / 66
Edge Nominal Weightprofile size mm kg/m2
Square 1980 x 1188 x 12.5 9.5
8 - 15 - 20
Edge Nominal Weightprofile size mm kg/m2
Square 2000 x 1200 x 12.5 10
8 - 15 - 20 SUPER
Edge Nominal Weightprofile size mm kg/m2
Square 1960 x 1200 x 12.5 10
For current information, refer to www.gypsum.ie January 2009
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51
Notes
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:04 Page 51
Suitable cavity barriers can be formed using Gyproc FireLine
or Gyproc MultiBoard of appropriate thickness.
Please refer to Technical Guidance Document B, Fire Safety
for guidance.
INTRODUCTION
52
Cavity barriers6.7
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53
Cavity barriers 6.7
PERFORMANCE
Fire protectionFor reaction to fire classifications for Gyproc and Glasroc Fboards please refer to Section .
Fire resistanceThe fire resistances in Table 2 are for imperforate barrierswith all joints taped and filled according to GypsumIndustries’ recommendations. Where there is a relaxation onthe insulation requirement, the jointing stage can beomitted.
Fire-stoppingA cavity barrier must be tightly fitted to rigid construction, or,if it abuts against slates, tiles, corrugated sheeting, or otherconstruction to which it cannot be so fitted, then it must befire-stopped at the junction. Please refer to CONSTRUCTIONDETAILS, which show fire-stopping solutions using suitablerock mineral wool.
DESIGN
Planning - key factorsCavity barriers must maintain their performance during thelife of a building, taking account of any possible buildingmovement due to subsidence, shrinkage, or thermal change.In addition, the possible failure of its fixings or adjacentconstruction in the event of a fire, and the collapse in a fire ofany permitted services penetrating the cavity barrier, shouldbe considered.
INSTALLATION
The procedure for fixing timber or metal framing to theceiling / structure, and for fixing Gyproc boards to form thecavity barrier, is in line with Gypsum Industries’ normal drylining recommendations.
Health and SafetySafety Data Sheets for all Gypsum Industries’ products areavailable to download from our website: www.gypsum.ie,or via the Technical Sales Department.
EnvironmentalGypsum Industries’ Cavity Barriers are unsuitable for use inareas subject to continuously damp or humid conditions.Reference should be made to national Building Regulations,or associated documentation, for the various types ofconstruction which are exempt from the requirements.
Gyproc boards
COMPONENTS
Table 1 - Dimensions
Type of board Thickness Width(mm) (mm)
FireLine 12.5, 15 1200MultiBoard 6,10 1200
Gypframe metal stud framing – to suit.
Timber framing (by others) – to suit.
Gyproc Drywall Screws.
Gyproc Drywall Timber Screws.
Rock mineral wool (by others) – for fire-stopping.
Moy Isover Sleeved Cavity Fire Barrier – for cavity closure
in external timber frame walls.
2.1
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:04 Page 53
Table 2 - Fire performance1
Detail Construction Fire resistance PerformanceIntegrity : Insulation3 substantiation
minutes report
10mm MultiBoard screw-fixed to one side of a 30 : 15 G11000148S50 ‘C’ studs framework with studs at 600mm centresusing Gyproc Drywall Screws at 300mm centres. Fire stopping material, e.g. rock mineral wool to the perimeter as necessary.
10mm MultiBoard fixed to one side of a timber 30 : 15 G110002stud framework incorporating 75mm x 50mm studs at 600mm centres using Gyproc Drywall Timber Screws at 300mm centres.Fire-stopping material, e.g. rock mineral wool to the perimeter as necessary.
As above but with 12.5mm Gyproc FireLine. 30 : 15 E106002
6mm MultiBoard screw-fixed each side of 30 : 15 G11000348S50 ‘C’ studs at 600mm centres using Gyproc Drywall Screws at 300mm centres. Fire-stopping material, e.g. rock mineral wool to the perimeter as necessary.
Moy Sleeved Cavity Fire Barrier sealing the cavity between 30 : 302 E106004the outer brick wall and the internal timber leaf.
Notes:1 The fire resistances are for barriers with all joints taped and filled according to Gypsum Industries’ recommendations. The quotedperformances are achieved only if Gypsum Industries’ components are used throughout, and the Company’s fixing recommendations arestrictly observed. Any variations in the specifications should be checked with Gypsum Industries.2 Joints between sleeved cavity barriers must be compressed in accordance with Moy Isovers’ recommendations in order to achieve 30minutes insulation.3 Board joints must be reinforced with Gyproc Paper Joint Tape for the quoted fire resistance periods to be achieved. Please refer to sectionfor full details.
2.2
54
Cavity barriers6.7
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55
Cavity barriers 6.7
CONSTRUCTION DETAILS
Note: For a typical construction detail using Moy Sleeved Cavity Barrier, please see Table 2 - Fire performance.
Fig. 1 - Sub-division of ceiling void using timber framedcavity barrier.
Fig. 3 - Sub-division of ceiling void using metal framedcavity barrier.
Fig. 4 - Cavity barrier at T junction of partitions.
Fig. 5 - Sub-division of partition cavity
Fig. 2 - Capped partition.
1m orgreater
1m orgreater
January 2009 For current information, refer to www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:04 Page 55
Glasroc F SoffitLine combines the benefits of Glasroc F
MultiBoard with thermally efficient phenolic foam
insulation. It can be fixed to the underside of semi-exposed
soffits using the GypLyner system, the CasoLine MF system,
or timber battens. Alternatively, it can be directly fixed to
the soffit using proprietary anchors.
The smooth, off-white surface finish of Glasroc F SoffitLine
makes it ideal for carports and basements where the panels
are left undecorated.
Whilst every effort is made during manufacture to maintain
uniformity of colour and texture, there might be slight
variations. Gypsum Industries cannot guarantee exact
matching. A higher quality finish is achieved if the board is
painted.
The thermally efficient phenolic foam and foil backing allow
high standards of insulation to be achieved.
INTRODUCTION
56
Semi-exposed soffits6.8
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57
Semi-exposed soffits 6.8
Fixing SoffitLine to metal framingIf the CasoLine MF option is to be used, Gypframe MF5
Ceiling Section is twice fixed directly to the concrete soffit
at 600mm centres using suitable proprietary fixings.
If the GypLyner option is used, then Gypframe GL1 Lining
Channel is fixed at 600mm centres via Gypframe GL2 or
GL9 Brackets. The Gypframe GL9 Bracket provides for a
greater stand-off to allow for deeper service routings.
Glasroc F SoffitLine is installed transverse to channel
sections using Gyproc Drywall Screws inserted at 600mm
centres. Normal 600mm framing centres will achieve
deflection criteria of L/360. Where deflection criteria are
more stringent, framing centres will need to be reduced
to 400mm.
Fixing SoffitLine to timber battensTimber battens are fixed to the soffit at 600mm centres
using suitable proprietary fixings. Glasroc F SoffitLine is
installed to the timber using Gyproc Drywall Timber
Screws inserted at 600mm centres. Normal 600mm framing
centres will achieve deflection criteria of L/360. Where
deflection criteria are more stringent, framing centres will
need to be reduced to 400mm.
Fixing directly to the concrete soffitGlasroc F SoffitLine is fixed using suitable proprietary
anchors at 400mm centres to board edges / ends and also
in the field of the boards.
There may be a slight risk of pattern staining where
temperature, humidity, and airborne pollutants are
extreme.
INSTALLATION
January 2009 For current information, refer to www.gypsum.ie
For full installation details, refer to the Installation Guide at www.gypsum.ie
book 6_jan09.qxd:c01 Introduction v3.qxd 27/11/2008 11:04 Page 57
Health and SafetySafety Data Sheets for all Gypsum Industries’ products
are available to download from our website:
www.gypsum.ie, or via the Technical Sales Department.
EnvironmentalGlasroc F SoffitLine must not be subjected to direct exposure
and to elements such as driving rain.
COMPONENTS
Table 1 - Dimensions.
Type of board Thickness Width Lengthmm mm mm
Glasroc F SoffitLine1 26, 36, 46, 56, 1200 240066, 76, 86
1 6mm Glasroc F MultiBoard with a backing of foil faced CFC andHCFC-free phenolic foam providing integral vapour control and a highlevel of thermal insulation.
Drywall Screws – used to fix boards to metal framing,
provide minimum 10mm penetration into the metal section.
Drywall Timber Screws – used to fix boards to timber
supports provide minimum 25mm penetration into
the timber.
Glasroc board
58
Semi-exposed soffits6.8
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Fire protection
Both Glasroc F MultiBoard and the phenolic foam surface
achieve Class 0 ratings when tested to BS 476: Part 6: 1989
and Part 7: 1997.
Phenolic foam has an obscuration of less than 5% when
tested to BS 5111: Part 1: 1974 Methods of testing for
determination of smoke generation characteristics of cellular
plastics and cellular rubber materials.
The recommended installation systems for Glasroc F
SoffitLine incorporate primary or secondary mechanical
fixings so as to maintain the fire protection afforded by the
MultiBoard facing.
Glasroc F SoffitLine is suitable for semi-exposed applications
such as soffits and car-ports, where perimeters are open to
the elements. During construction it is acceptable for Glasroc
F SoffitLine to be temporarily exposed to direct rainfall, or
other sources of water, so long as drying out has occurred
prior to decoration. The phenolic foam insulation has a
closed cell structure giving it good resistance to moisture.
Condensation control
Glasroc F SoffitLine offers significant resistance to water
vapour transmission, provided that all board joints are taped
and filled in accordance with Gypsum Industries’ standard
recommendations. The phenolic foam insulation is faced
with foil which acts as a vapour control membrane.
Surface condensation can occur at cold bridges such asaround openings. The use of Glasroc F SoffitLine minimisesthe risk of surface condensation occuring.
PERFORMANCE Thermal properties
For thermal conductivity (λ) and thermal resistance (R) values
relating to Glasroc F SoffitLine, please refer to section .
Services
The cavity between the laminate and the background can be
used to incorporate services.
Services should be installed in accordance with all available
standards, guidelines and recommendations.
Fixtures
The fixing device selected should be long enough to bridge
the cavity and give adequate penetration into the soffit.
Finishing
Joints should be filled using Pro Fin Quick-Set Filler, finished
with Readymix Pro Fin Semi-Lite Filler and Finishing
Compound.
If a paint finish is desired, once the jointing material has
dried, apply at least two coats of exterior quality paint in
accordance with the manufacturer’s instructions.
2.1
DESIGN
59
Semi-exposed soffits 6.8
January 2009 For current information, refer to www.gypsum.ie
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CONSTRUCTION DETAILS
Fig. 1 - Fixing to concrete soffit using MF sections. Fig. 2 - Direct fix to MF sections (plan)
600mm
600mm
Fig. 3 - Fixing to concrete soffit using GypLyner.
Fig. 4 - Fixing to concrete soffit using timber battens.
60
Semi-exposed soffits6.8
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61
Notes
January 2009 For current information, refer to www.gypsum.ie
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62 For current information, refer to www.gypsum.ie January 2009
Notes
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Dublin officeUnit 14, Park West Industrial Park, Dublin 12Telephone 00 353 1 629 8400 | Facsimile 00 353 1 623 7054E-mail [email protected]
Belfast officeThe Castleton Centre, 30-42 York Road, Belfast BT15 3HETelephone 028 90744009 | Facsimile 028 90744010E-mail [email protected]
Website: www.gypsum.ie
Gypsum IndustriesGypsum Industries is a market leader in plasterboard and plaster,manufacturing in Ireland since 1936. Our Plasters & Plasterboards are marketedunder the GYPROC brand. We are also distributors of GLASROC F glass reinforcedgypsum boards, GYPFRAME metal, GYPROC ceiling products, and ARTEX &BLUEHAWK DIY products.
Gypsum Industries is the leading supplier and foremost authority on internalwall and ceiling systems in Ireland, providing fast track lightweight buildingsystems to meet the needs of today’s ever changing construction industry.
Our SpecSure ® GuaranteeSpecSure® is a unique ‘off the shelf’ warranty to end users that confirms GypsumIndustries proprietary systems will perform to the parameters published in ourcurrent literature for the period of time that the system is used for its originallydesigned purpose – a lifetime warranty!
To qualify for SpecSure® simply specify and install Gypsum Industries systems inline with the recommendations in our current Product Manual (www.gypsum.ie).
Technical service Gypsum Industries’ Technical Sales Team is available to provide technical advicewhen the company’s systems are being specified or installed. We offer architectsand installers total system support, test back-up, technical helpline, design anddetailing assistance and on-site support by technical experts. Please contact theTechnical Sales Team for further information.
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