ibs os’brace® rap os’brace® rap has not been tested as a structural bracing element in...

www.ibs.co.nzIBS BUILDING PRODUCTS1/7 Fraser Road, Panmure Auckland I P: 0800 367 759

DESIGN & INSTALLATION GUIDE

IBS OS’BRACE® RAP

IBS OS’BRACE® RAP

Get RigidIBS NO:1 RIGID AIR BARRIER SYSTEM AQ-000115-CMNZ (Rev 5, Dec 2017)

www.ibs.co.nz2

IBS Design & Installation GuideIBS OS’Brace® RAP

TABLE OF CONTENTS PAGE1. PURPOSE OF DOCUMENT .................................3 1.1 General ..........................................................3 1.2 Supporting information .................................3

2. GENERAL ........................................................3 2.1 Use of IBS OS’Brace®RAP ................................3 2.2 Orientated strand board explained ................3 2.3 IBS OS’Brace® RAP explained .........................3 2.4 IBS OS’Brace® RAP CodeMark explained ........3 2.5 IBS OS'Brace® RAP advantages.......................3 2.6 Restricted building work ................................3 2.7 Install service penetration .............................3 2.8 Install window opening ..................................4 2.9 Designer/installer skill level ...........................4 2.10 Health and safety .........................................4 2.11 Handling and storage ...................................4 2.12 Sawing, drilling, shaping ..............................4

3. IBS OS’BRACE®RAP AS A BRACING ELEMENT ......5 3.1 Scope of use ...................................................5 3.2 Limitations .....................................................5 3.3 IBS OS’Brace® RAP wall bracing system..........6 3.3.1 Bracing capacity ..........................................6 3.3.2 System #1 ....................................................7 3.3.3 System #2 ....................................................7 3.3.4 System #3 ....................................................7 3.3.5 System #4 ....................................................8

TABLE OF CONTENTS .................................PAGE 3.3.6 System #5 ....................................................8 3.3.7 System #6 ....................................................9 3.3.8 System #7 ..................................................10 3.3.9 Lintel tie down details ...............................11 3.3.10 Top plate rafter or truss details ................11 3.3.11 Fixings .....................................................11 3.3.11.1 General .................................................11 3.3.11.2 Bottom plate fixing ...............................11 3.3.11.3 Bottom plate fixing detail .....................12 3.3.11.4 LVL System Installation Mitek CPC80 ....12 3.3.11.5 LVL System Installation Simpson

Strong-Tie ..........................................................13 3.3.12 Mechanical connections ..........................13 3.4 Joint sealing and window tape .....................13

4. IBS OS’BRACE® RAP AS A RIGID AIR BARRIER ...... 14 4.1 General ........................................................14 4.2 IBS OS’Brace®RAP a non-structural rigid

air barrier .....................................................14

5. AVAILABLE DETAILS ....................................... 14

6. IBS OS’BRACE®RAP AS AN INTERNAL LINING ... 14 6.1 General ........................................................14

7. FINISHING ..................................................... 15

8. QUALITY ASSURANCE .................................... 15

9. TECHNICAL PROPERTIES ................................ 15

10. ADDITIONAL RESOURCES ............................. 15

AQ-000115-CMNZ (Rev.5, Dec 2017)

www.ibs.co.nz 3

IBS Design & Installation Guide. V1.1. Dec 2017Uncontrolled in printed format IBS OS’Brace® RAP

1. PURPOSE OF DOCUMENT1.1 GENERAL This document is intended for designers and installers to ensure that IBS OS’Brace® RAP (rigid air panel) is specified and installed correctly.

1.2 SUPPORTING INFORMATION This document must be read in conjunction with the:■ IBS pass™ (Product Assurance Supplier Statement)

for IBS OS’Brace® RAP■ IBS Product Specification for IBS OS’Brace® RAP■ IBS Maintenance and Warranty for IBS OS’Brace® RAP

2. GENERAL 2.1 USE OF IBS OS’BRACE® RAP IBS supply IBS OS’Brace® RAP for use: ■ As an internal or external wall bracing element when

used in conjunction with a specific fixing system.■ In exterior wall construction as an alternative to light or heavy

weight wall wrap or where a rigid air barrier is required.■ As an internal wall substrate where high impact use is

envisaged.

2.2 ORIENTED STRAND BOARD EXPLAINEDOSB (oriented strand board) is a moisture resistant, structural wood panel. Engineered in Germany from environmentally sustainable sourced softwood, it consists of three layers of wood strands bonded together with heat-cured adhesives. Each layer is orientated at right angles to the adjacent layer creating a strong, dimensionally stable panel that resists delamination and warping. The absence of natural imperfections such as knots provides certainty of performance.

2.3 IBS OS’BRACE® RAP EXPLAINEDIBS OS’Brace® RAP has been manufactured specifically for NZ, for use as a bracing element and/or rigid air barrier. As an OSB/31 panel, manufactured in accordance with EN13986:2004, it is suitable for use in humid conditions where the panel in-service moisture content does not exceed 20%. It is supplied treated to hazard class H3.1, using a method where the chips themselves are treated prior to being bonded meaning that the panel is fully treated, in accordance with AS/NZS1604.2.

Compliance with the NZ Building Code is established through Product Certification (CodeMark).

IBS OS’Brace® RAP is 6.0 mm thick and supplied in the following panel sizes: ■ 2440 mm x 1198 mm x 6 mm■ 2745 mm x 1198 mm x 6 mm■ 3050 mm x 1198 mm x 6 mm

2.4 IBS OS’BRACE® RAP CODEMARK EXPLAINEDIBS is the certificate holder of CodeMark for IBS OS’Brace® RAP. CodeMark is third party certification, allowed for under the Building Act 2004. This means that under law, a Building Consent Authority must accept the specification of IBS OS’Brace® RAP (the panel and the installation details) as complying with the NZ Building Code, providing that all conditions of the certificate have been met.

Achieving CodeMark also focuses on the quality of IBS OS’Brace® RAP panels and the quality and competence of the support provided by IBS. This means that designers and installers can use IBS OS’Brace® RAP with confidence that, providing all instructions are followed, IBS OS’Brace® RAP will result in building work complying with the NZ Building Code.

2.5 IBS OS’BRACE® RAP ADVANTAGESIBS OS’Brace® RAP is a practical alternative to traditional flexible building wraps. The installation of EGGER OS’Brace® RAP allows the builder to enclose the exterior of the building quickly providing the following advantages: ■ Reduces building time■ Provides rapid moisture protection of the building■ Allows for interior construction to continue■ Provides a greater level of site security■ Reduces structural timber movement

2.6 RESTRICTED BUILDING WORKIn some applications Restricted Building Work (RBW) provisions will apply. It is the responsibility of the designer and installer to ensure that they have met their obligations under these provisions.

2.7 INSTALL SERVICE PENETRATIONRefer to IBS OS’Brace® RAP approved selection of flexible flashing tapes - see 3.4.

Flashing of pipe and service penetrations shall be carried out in accordance with the following:■ Pipe penetrations through IBS OS’Brace® RAP must have

a minimum of a 5⁰ slope to the outside.■ Flexible flashing tape must be installed like a bandage

with a minimum of 25 mm cover around the pipe and 100 mm minimum surface adhesion to IBS OS’Brace® RAP panel surrounding the penetration.

1 Classification of OSB is defined in EN300:2006

www.ibs.co.nz4

IBS Design & Installation Guide. V1.1. Dec 2017Uncontrolled in printed formatIBS OS’Brace® RAP

2.8 INSTALL WINDOW OPENINGRefer to IBS OS’Brace® RAP approved selection of flexible flashing tapes - see 3.4.

Flashing window openings shall be carried out in accordance with WANZ Guide to E2/ASI (6), substituting building wraps for IBS OS’Brace® RAP.■ Cut the flashing tape for the sill at least 200 mm wider

than the opening.■ Fit the tape with the inner edge of the tape flush with

the inside line of the framing and extend 100 mm up and down each jamb edge.

■ Ensure the tape is well adhered to the surfaces and fitted tightly to each corner.

■ Fully tape all window opening edges.

2.9 DESIGNER/INSTALLER SKILL LEVELWhere IBS OS’Brace® RAP is specified and/or installed the designer/installer should have the appropriate skills, knowledge of the product and access to all IBS OS’Brace® RAP technical information (refer www.ibs.co.nz).

2.10 HEALTH AND SAFETYWhen installing IBS OS’Brace® RAP take all steps to ensure your safety and the safety of others.■ Ensure that when cutting or drilling IBS OS’Brace® RAP

that there is adequate ventilation or mechanical dust extraction.

■ Ensure the IBS OS’Brace® RAP is well supported when cutting or drilling the panel.

■ Appropriate close fit clothing should be worn at all times■ Wear eye, ear and footwear protection when working

with IBS OS’Brace® RAP.

Site considerations■ Selection of the right equipment for working from a height■ Safe working with ladders and stepladders■ Maintain a clear unobstructed work area

For further information refer to:■ The Absolutely Essential Health and Safety Toolkit■ Worksafe New Zealand Quick Guide

2.11 HANDLING AND STORAGECorrect storage and handling in transport is essential for the protection of IBS OS’Brace® RAP. The following simple principles should be taken into account:

■ Strapping and shrink wrap should be removed immediately upon arrival at the installer’s storage area or on site.

■ IBS OS’Brace® RAP should be laid flat on timber bearers. The spacing’s between the timber should be no more than 800 mm.

■ If several pallets are stacked on top of each other ensure the storage bearers are in true alignment.

■ When stored outside ensure there is sufficient clearance between the ground and IBS OS’Brace® RAP to prevent moisture transfer and allow air circulation. Cover with a waterproof tarpaulin.

■ IBS OS’Brace® RAP must not be exposed to the weather for more than 3 months.

■ When manually handling IBS OS’Brace® RAP ensure the panels are lifted in the central third.

2.12 SAWING, DRILLING, SHAPINGIBS OS’Brace® RAP panels may be sawn and shaped in the same way as solid wood, although carbide tipped cutters are recommended.If panels are to be installed in a visible location, ensure clean-cut edges with sharp tools, using a backing block to minimize break out. The feed rate should be slower than for solid wood.

Typical window opening.

EGGER S'Brace® RAP

Flexible flashing tape (ref section 3.4)

Min lap 150 mm in each direction

www.ibs.co.nz 5


3. IBS OS’BRACE® RAP AS A BRACING ELEMENT 3.1 SCOPE OF USE IBS OS’Brace® RAP may be used as a bracing element within the following scope:In wind zones:■ Up to and including extra high. ■ Up to 2.5 kPa ULS where the building is specifically engineered.Building scope■ New buildings: with timber wall framing complying with

NZ Building Code .■ In conjunction with the GIB HandiBrac® method or a

Strap Bracing system.■ In conjunction with LVL System - staples, Mitek CPC 80

and SPAX screws.■ In conjunction with LVL System - staples, Simpson

Strong-Tie DTT2Z and type 17 screws.■ In conjunction with concrete and timber subfloor

applications that comply with the NZ Building Code.■ With all cladding types that comply with NZBC.■ In conjunction with a drained and ventilated nominal

20mm cavity system. ■ With aluminium joinery complying with the NZ Building Code■ IBS OS’Brace® RAP has not been tested as a structural

bracing element in conjunction steel framing.

IBS OS’Brace® RAP may be used as a bracing element in existing buildings, however in these cases IBS makes no claim as to the bracing value that will be achieved. If IBS OS’Brace® RAP is to be installed as a bracing element in existing timber framed buildings the following scope applies:■ Existing timber framed buildings where the designer and/

or installer have assured themselves that the existing building is suitable for the intended building work

■ Existing concrete and timber sub-floor structures where the designer and/or installer have assured themselves that the existing building is suitable for the intended building work

3.2 LIMITATIONS■ Allow a minimum of 4 mm between panel joints to

accommodate dimension movement.■ Maximum spacings of wall studs must not exceed 600 mm

centres with a minimum of 1 row of horizontal nogs (nogs not required for system #6 & #7). Where wall heights exceed 2.7 m an additional row of nogs must be added.

■ Curved walls, minimum radius 2.5 m are allowable, the IBS OS’Brace® RAP panels must be fixed horizontally onto framing studs with spacing and stud centres dependent on the radius.

■ A proprietary 'Z' flashing must be installed at mid floor level where IBS OS'Brace® RAP is installed on multi levels. Serviceability of the joints may be affected if – at the time the timber framing is installed - its moisture content is greater than 18%.

■ For wall heights greater than 3050 mm horizontal wall joints are permitted, provided the panel joint is over solid blocking of the same gauge as the studs.

■ All joints, other than mid floor level, (vertical and horizontal) must be sealed with an IBS approved self-adhesive “flashing tape”.

■ A hole 100 x 100 mm maximum within an envelope of 100 mm from top and vertical edges and 200 mm from the bottom of the IBS OS’Brace® RAP panel will not affect the bracing capacity. Multiple holes of this size are permitted provided the centre lines of the holes are not closer than 600 mm.

■ Steel fixings and fastenings must be in accordance with table 4.1, NZS 3604: 2011.

■ IBS OS’Brace® RAP must be allowed to acclimatise for at least 48 hours prior to installation.

When specifying IBS OS’Brace® RAP as a bracing element, the designer must take into account site specific conditions and the building with respect to, but not limited to, the following: ■ Environmental (exposure) zone

■ Wind zone

■ Wall bracing table for wind and EQ demand

■ Structural design loads

■ Structural framing requirements

■ Preparation of substrate

■ External envelope

■ Other materials likely to affect the performance of IBS OS’Brace® RAP

www.ibs.co.nz6


3.3 IBS OS’BRACE®RAP WALL BRACING SYSTEM 3.3.1 BRACING CAPACITYThe following table provides the bracing value for the different systems:

■ For all bracing systems no product substitution is allowed. Installation must be in accordance with these instructions. If these requirements are not met, IBS provides no assurance that the bracing capacity (claimed in this design and installation guide) will be achieved.

■ The allowable racking resistances for the IBS OS’Brace® RAP systems (type 1 – 4) are applicable to frames lined with IBS OS’Brace® RAP on one side only.

■ Panels must always be installed vertically.

■ Stud sizes and centres will vary depending on height load and loads ref: NZS3604:2011.

■ Specific LVL method - ref System #6 & #7.

The systems may be used on walls of lengths different to those in TABLE 1 but this is limited to:

■ Wall lengths no greater than twice the tested system length.

■ For walls greater than the tested system length multiply the length of the wall on a pro-rata basis, up to double the length of the system.

NOTE:

TABLE 1 CONCRETE SLAB TIMBER FLOOR

System Wind EQ Wind EQ

SYSTEM 1: OSB - 300 mm x 2440 mm wall GIB HandiBrac®

fixing 30 x 2.5 Galv clouts or 45 x 2.5 S/Steel annular grooved nails

56 BU/m 56 BU/m 56 BU/m 56 BU/m

SYSTEM 2: OSB - 1200 mm x 2400 mm wall 25 x 1.0 strap

fixing, 25 mm S/Steel screws134 BU/m 122 BU/m 120 BU/m 120 BU/m

SYSTEM 3: OSB - 1200 mm x 2400 wall GIB HandiBrac® fixing

Galv clouts 30 x 2.5, 45 x 2.5 S/Steel annular grooved nails

101 BU/m 97 BU/m 101 BU/m 97 BU/m

SYSTEM 4: OSB - 2400 mm x 3000 mm wall GIB HandiBrac®

fixing 30 x 2.5 Galv clouts122 BU/m 125 BU/m 120 BU/m 120 BU/m

SYSTEM 5a - 400: OSB - 400 mm x 2400 mm wall, GIB standard 10 mm board on the inside, specific nailing

pattern, GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel annular grooved nails

110BU/m 124 BU/m 110 BU/m 120 BU/m

SYSTEM 5b - 600: OSB - 600 mm x 2400 mm wall, GIB standard 10 mm board on the inside, specific nailing

pattern, GIB HandiBrac® fixing Galv clouts 30 x 2.5, 45 x 2.5 S/Steel grooved nails

142 BU/m 143 BU/m 120 BU/m 120 BU/m

SYSTEM 5c - 1200: OSB - 1200 mm x 2400 mm wall, GIB standard

10 mm board on the inside, specific nailing pattern, GIB HandiBrac® fixing Galv clouts 30 x

2.5, 45 x 2.5 S/Steel annular grooved nails

178 BU/m 157 BU/m 120 BU/m 120 BU/m

SYSTEM 6a - 600: OSB - 600 mm wall LVL wall framing.

Mitek CPC80 angle brackets with 120 SPAX A9L screws. Panel fixing 45 x 1.5 mm staples.

74 BU/m 85 BU/m n/a n/a

SYSTEM 6b - 1200: OSB - 1200 mm wall LVL wall framing. Mitek

CPC80 angle brackets with 120 SPAX A9L screws. Panel fixing 45 x 1.5 mm staples.


SYSTEM 7a - 400: OSB - 400 mm wall LVL8 double bottom and top

plates, LVL8 or MSG8 vertical studs. Simpson Strong-Tie DTT2Z & M12 fixing, 2 x type 17 screws. Panel fixing 45 x 1.5 mm staples.


SYSTEM 7b - 800: OSB - 800 mm wall LVL8 double bottom and top

plates, LVL8 or MSG8 vertical studs. Simpson Strong-Tie DTT2Z & M12 fixing, 2 x type 17 screws. Panel fixing 45 x 1.5 mm staples.


www.ibs.co.nz 7


3.3.2 SYSTEM #1 SYSTEM 1 IBS OS’BRACE® RAP 300 MM WALL USING GIB HANDIBRAC® - FIG 1Wall construction:■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*.■ 6 mm IBS OS’Brace® RAP panel one side.■ 30 x 2.5 mm galv clouts or 45 x 2.5 stainless steel annular

grooved nails at 150 mm centres around the perimeter.■ GIB HandiBrac® hold down brackets fixed to each end-to-

end studs and to bottom plate with concrete hold downs.■ Tested on a concrete floor with M12 hold-down bolts.

3.3.3 SYSTEM #2 SYSTEM 2 IBS OS’BRACE® RAP 1200 MM WALL USING STRAP BRACE - FIG 2Wall construction:■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*.■ 6 mm IBS OS’Brace® RAP panel one side. ■ 25 mm stainless steel screws at 150 mm centres around

the perimeter and 300 mm centre nogs.■ 25 x 0.9 mm straps around bottom plate fixed to each side

of end studs with 6/30 x 3.15 bracket nails on each side of the stud.

■ Straps must extend to a minimum of 150 mm past the bottom plate.

■ Tested on a concrete floor with 2 x M12 hold-down bolts.

3.3.4 SYSTEM #3 SYSTEM 3 IBS OS’BRACE® RAP 1200 MM WALL USING GIB HANDIBRAC® - FIG 3Wall construction:■ 90 x 45 MSG8 studs (600 mm centres) plates, two rows of nogs*.■ 6 mm IBS OS’Brace® RAP panel one side.■ 30 x 2.5 mm galv clouts or 45 x 2.5 stainless steel annular

grooved nails at 150 mm centres around the perimeter and 300 mm centre nogs.

■ GIB HandiBrac® hold down brackets fixed to each end-to -end studs and to the bottom plate with concrete hold-downs.

■ Tested on a concrete floor with M12 hold down bolts.

300 mm

. . . . .

. . . . . . . . . . . . . . .

. . . . . . . . . . . . . . .

. . . . .

. . . . .

. . . . . . . . . .

. .

. . . . .

. .

. .

.

.

.

.

.

.

.

. .

.

.

.

.

.

. .

.

.

.

.

. . . . . . . . . . . . . .

150 mm

GIB HandiBrac® installed in the internal corner

2440 mm

GIB HandiBrac® installed in the internal corner

FIG 1

GIB HandiBrac® installed in the internal cornerGIB HandiBrac®

installed in the internal corner

600 mm

2440 mmFIG 3

* Nogs shall be spaced at not more than 1350 mm centres

. . . . . . . . . . . . . . . .

. .

.

.

. .

.

.

.

. .

.

.

.

.

.

. .

.

.

.

. .

.

.

.

. . .

.

. .

.

.

. .

.

.

.

. .

.

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . .

. . . . . . . . . .

. .

. . . . .

. .

. .

.

.

. .

.

.

.

.

.

.

..

.

.

. .

.

.

.

.

. . . . . . . . . . . . . .

Straps must extend to a minimum of 150 mm past the bottom plate

Straps must extend to a minimum of 150 mm past the bottom plate

600 mm

150 mm

300 mm

2440 mm

1198 mm

. . . . . . . . . . . . . . . .

. .

.

.

. .

.

.

.

. .

.

.

.

.

.

. .

.

.

.

. .

.

.

.

. . .

.

. .

.

.

. .

.

.

.

. .

.

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . .

. . . . . . . . . .

. .

. . . . .

. .

. .

.

.

. .

.

.

.

.

.

.

.

.

.

.

. .

.

.

.

.

. . . . . . . . . . . . . .

FIG 2

150 mm

300 mm

www.ibs.co.nz8


3.3.5 SYSTEM #4 SYSTEM 4 IBS OS’BRACE® RAP 2400 MM WALL USING GIB HANDIBRAC® - FIG 4Wall construction:■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*.■ 6 mm IBS OS’Brace® RAP panel one side.■ 30 x 2.5 galv clouts at 150 mm centres around the perimeter

and 300 mm centre nogs.■ GIB HandiBrac® hold down brackets attached to each

end studs and to the bottom plate with concrete hold-downs as per manufacturer's specifications.

■ Tested on a concrete floor with M12 hold down bolts.

3.3.6 SYSTEM #5 (a,b,c) SYSTEM 5 IBS OS’BRACE® RAP 400, 600 OR 1200 MM WALL USING GIB HANDIBRAC®AND 10 MM STANDARD PLASTERBOARD ON THE INSIDE FIG 5Wall construction:■ 90 x 45 MSG8 studs (600 centres) plates, two rows of nogs*.■ 6 mm IBS OS’Brace® RAP panel one side, standard

10 mm plasterboard®on the inside. ■ 30 x 2.5 mm galv clouts or 45 x 2.5 mm stainless steel

annular grooved nails at 150 mm centres around the perimeter and 300 mm centre nogs.

■ GIB HandiBrac® hold down brackets fixed to each end studs and to the bottom plate with concrete hold downs as per manufacturer's specifications.

■ Tested on a concrete floor with 2 x M12 hold-down bolts.

. . . . . . . . . . . . . . . .

. .

.

.

. .

.

.

.

. .

.

.

.

.

.

. .

.

.

.

. .

.

.

.

. . .

.

. .

.

.

. .

.

.

.

. .

.

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . .

. . . . . . . . . .

. .

. . . . .

. .

. .

.

.

. .

.

.

.

.

.

.

..

.

.

. .

.

.

.

.

. . . . . . . . . . . . . .

150 mm300 mm

300 mm

1198 mm

1198 mmGIB HandiBrac® installed in the internal cornerGIB HandiBrac®


FIG 5

. . . . . . . . . . . . . . . .

. .

.

.

. .

.

.

.

. .

.

.

.

.

.

. .

.

.

.

. .

.

.

.

. . .

.

. .

.

.

. .

.

.

.

. .

.

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . .

. . . . .

. . . . . . . . . .

. .

. . . . .

. .

. .

.

.

. .

.

.

.

.

.

.

..

.

.

. .

.

.

.

.

. . . . . . . . . . . . . .

GIB HandiBrac® installed in the internal cornerGIB HandiBrac®


600 mm

150 mm

2440 mm300 mm

1198 mm

* Nogs shall be spaced at not more than 1350 mm centres

3050 mm

FIG 4

www.ibs.co.nz 9


FIG 6

FIG 7

600 mm

150 mm

2440 mm or 2745 mm or 3050 mm

75 mm each corner75 mm each corner

600 mm

150 mm

2440 mm or 2745 mm or 3050 mm

75 mm each corner

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centre. Corner fixings at 75 mm from all corners in each direction.

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150 mm centre. Corner fixings at 75 mm from all corners in each direction.

Double MSG8, or equivalent, Mitek CPC80 angle brackets installed in internal corner. Bottom plates joined with 4/6 x 120 SPAX screws at 600. (2 each side of hold down bolts).

Double MSG8, or equivalent, bottom plate Mitek CPC80 angle brackets installed in internal corner. Bottom plates joined with 4/6 x 120 SPAX screws at 600. (2 each side of hold down bolts).

3.3.7 SYSTEM #6a SYSTEM 6a IBS OS’BRACE® RAP 600 MM WALL USING STAPLES - FIG 6Wall construction:■ 90 x 45 MSG8 or LVL8 studs (600 mm centres) no nogs

required.■ 90 x 45 LVL8 (or equivalent) H1.2 top and double bottom

plates.■ 6 mm IBS OS’Brace® RAP panel one side only.■ IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150

mm centres, plus 1 x 75 mm at corner on stud and at 300 mm centres for central stud.

■ Mitek CPC80 angle brackets each end using 14g x 35/Type 17 screws, 4 to bottom plate and 4 to stud.

■ Upper bottom screwed to lower plate with 4/6 x 120 SPX A9L screws at 600, 2 each side of hold-down bolts.

■ M12 hold down bolts with 50/50 x 3 mm (or equivalent) washers to lower bottom plate.

3.3.7 SYSTEM #6b SYSTEM 6b IBS OS’BRACE® RAP 1200 MM WALL USING STAPLES - FIG 7Wall construction:■ 90 x 45 MSG8 or LVL8 studs (600 mm centres) no nogs


plates.■ 6 mm IBS OS’Brace® RAP panel one side only. ■ IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 150

mm centres, plus 1 x 75 mm at corner on stud and at 300 mm centres for central stud.

■ Mitek CPC80 angle brackets each end using 14g x 35 Type 17 screws, 4 to bottom plate and 4 to stud.

■ Upper bottom screwed to lower plate with 4/6 x 120 SPX A9L screws at 600, 2 each side of hold-down bolts.

■ M12 hold down bolts with 50/50 x 3 mm washers (or equivalent) to lower bottom plate.

1198 mm

Staples at 300 mm centres for central stud

300 mm

www.ibs.co.nz10


3.3.8 SYSTEM #7a SYSTEM 7a IBS OS’BRACE® RAP 400 MM WALL USING STAPLES - FIG 8Wall construction:■ 90 x 45 MSG8 or LVL8 studs @ 400 mm centres, no nogs


plates.■ 6 mm IBS OS’Brace® RAP panel one side only. ■ IBS OS’Brace® RAP one side fixed with 45 x 1.5 mm staples

at 75 mm centres around the perimeter.■ Simpson Strong-Tie DTT2Z brackets at each end 8/6 x

35 mm screws to studs.■ Stud to bottom plate fixing with 2/Type 17 (4 x 75 mm) screws.■ M12 hold-down threaded rod ChemSet™ to foundation wall.

3.3.8 SYSTEM #7b SYSTEM 7b IBS OS’BRACE® RAP 800 MM WALL USING STAPLES - FIG 9Wall construction:■ 90 x 45 MSG8 or LVL8 studs @ 400 mm centres, no nogs


plates.■ 6 mm IBS OS’Brace® RAP panel one side only. ■ 6 mm IBS OS’Brace® RAP one side fixed with 45 x 1.5 mm

staples at 75 mm centres around the perimeter.■ Simpson Strong-Tie DTT2Z brackets at each end 8/6 x

35 mm screws to studs.■ Stud to bottom plate fixing with 2/Type 17 (4 x 75 mm) screws.■ M12 hold-down threaded rod ChemSet™ to foundation wall.

400 mm

75 mm

2440 mm or 2745 mm or 3050 mm

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 75 mm centre.

Double LVL8, or equivalent, Simpson Strong-Tie DTT2Z brackets installed in internal corner. Bottom plates joined with 8/ 6 x 35 screws. M12 hold-down threaded rod, ChemSet™ fixed.

Double LVL8, or equivalent, Simpson Strong-Tie DTT2Z brackets installed in internal corner. Bottom plates joined with 8/ 6 x 35 screws. M12 hold-down threaded rod, ChemSet™.

300 mm

IBS OS’Brace® RAP fixed with 45 x 1.5 mm staples at 75 mm centre.

2440 mm or 2745 mm or 3050 mm

75 mm

800 mm

FIG 9

FIG 8

www.ibs.co.nz 11


Allowable uplift resistance (kN/rafter)

Fastener spacing (mm) top and bottom plates

7.5 80

8.5 40

Fixing Exposure zone

Type 304 S/ Steel, Gauge 8 x 25 Surefix Screws All exposure zones

45 x 2.5 S/Steel Annular Grooved Nails All exposure zones

30 x 2.5 Galv Clouts, round head or D-Head Exposure zone B & C only

45 x 1.5 mm staples Exposure zone B & C only

Bottom plate to floor or sub floor connection as per NZS 3604:2011

min. 1200 mm

Tension

Bottom plate fixing Exposure zone

Strap Bracing M12 hold-down bolts with

50/50 x 3 mm washers

Steel fixing as per table 4:1 NZS3604:2011

GIB HandiBrac®Use supplied hold-down bolts


Mitek CPC80 M12 hold-down bolts with 50/50 x 3 mm washers, 120 SPAX A9L

screws.


Simpson Strong-Tie DTT2Z, M12 hold-down bolts, 50/50 x 3 mm washers


Top plate

Lintel, min 140 deep

10/50 x 2.8Ø nails, prebored holes 2.5Ø. See pattern below

Additional 50 x 2.8Ø between exisitng nails @ 150 c.c

Base fixing as per fig. 8.12NZS3604 (2011)

IBS OS’Brace® RAP

6/50 x 2.8Ø nails

Trim stud Under studEdge of IBS OS’Brace® RAP

15 min

25 c/c min

25 c/c min

15 min

15 15 15 28 10 7

45 45

3.3.9 LINTEL TIE DOWN DETAILSWhere the uplift does not exceed 7.5kN, the following strap fixing detail may be used as an alternate to 7.5kN strap fixing detailed in NZ3604, fig 8.12.

3.3.10 TOP PLATE TO RAFTER OR TRUSS CONNECTIONSWind uplift loads are transferred to the wall panels via the rafter or truss to top plate connections. IBS OS’Brace® RAP sheathed wall frames transfer these uplift loads to the bottom plates; the IBS OS’Brace® RAP acting in tension as a continuous cycle rod. Refer to NZS3604:2011 Table 8.18 for uplift connections between top plate and roof framing. Rafter/truss spacing is determined by the loaded dimensions.Top plate / stud mechanical fixings. Uplift top plate/stud mechanical connections in accordance with NZS3604: 2011 up to 7.5kN can be omitted where IBS OS’Brace® RAP and fixings are installed (top and bottom plates) at a maximum spacing of 80 mm.

3.3.11 FIXINGS 3.3.11.1 GENERAL

3.3.11.2 BOTTOM PLATE FIXING

www.ibs.co.nz12


Interior lining


Damp proof course6 mm gap or provide water proof membrane between concrete slab or block masonry

100 mm maximum100 mm

maximum

Cyclone Strap fixed to side eg: QHS6

4 or 6 nails per LEG as specified

Bottom plate detail to concrete or timber floor (with 25 mm x 1 mm strap)

GIB HANDIBRAC® INSTALLATION - CONCRETE FLOOR

External walls

Internal walls

Position IBS OS’Brace® RAP as close as practicable to the internal edge of the bottom plate.

Position IBS OS’Brace® RAP at the stud/plate junction.

GIB HANDIBRAC® INSTALLATION - TIMBER FLOOR

External walls

Internal walls

Position IBS OS’Brace® RAP in the centre of the perimeter joist or bearer.

Position IBS OS’Brace® RAP in the centre of the floor joist or full depth solid block.

30 45 mm 45 mm 30

Foundation & reinforcing by others

M12 x 100 screwbolt plus 50/50 x 3 mm or equivalent washer

55 x 15 mm notch in running bottom plate 4/6mm x 120 mm

SPAX (full threaded & cut point) at 600

3.3.11.4 LVL SYSTEM INSTALLATION MITEK CPC80/SPAX A9L SCREW - CONCRETE FLOOR

3.3.11.3 BOTTOM PLATE FIXING DETAILS BASE DETAIL

CPC80 angle bracket/type 17 screws, 4 to bottom plate and 4 to stud

DPC

15 m

m40

mm

10 mm plasterboard as per manufacturer installation guide

Insulation


H1.2 treated 90 x 45 SG8 or LVL8 framing

4/6 mm dia x 120 mm (full threaded & cut point) at 600. Screws can be screwed from either side of the wall

LVL8 wall bottom plate

LVL8 45 x 90 running bottom plate

DPC

M12 x 100 screwbolt plus 50/50 x 3 mm or equivalent washer @ 900mm crs

Foundation & reinforcing by others60 mm

6 mm anti-capillary gap

15 m

m40

mm

www.ibs.co.nz 13


Connections Exposure zone

Cyclone ties (304-2B Stainless Steel) Nails SS 30 mm x 3.15 mm in diameter all exposure zones

1 x 25 - Sheet Brace Strap (304-2B Stainless Steel)

Nails SS 6/30 x 3.15 diameter nails per strap end for 6kN capacity, 2 straps for

12kN

all exposure zones

GIB HandiBrac®https://www.gib.co.nz/products/

fasteners-and-brackets/gib-handibrac/all exposure zones

Cyclone Ties (G300 Z275 Galvanised Steel)

Nails 30 mm x 3.15 mm in diameterexposure zones B & C only

1 x 25-Sheet Brace strap (G300 Z275 Galvanised Steel)

Nails 6/ 30 x 3.15 diameter nails per strap end for 6kN capacity, 2 straps for 12kN

exposure zones B & C only

Mitek angle bracket CPC80 - 1.55, G300, Z275, 16 x 30 mm x 3.15 mm dia. 8/Type

17, 14g x 35 hex headexposure zones B & C only

Simpson Strong-Tie DTT2Z - 1.74 mm, G-185, 8 x 6 mm dia x 40 screws, M12

galv. threaded rod, ChemSetexposure zones B & C only

Approved joint and window tape (minimum face cover 50 mm)

Hydro Tape (masons 75 mm) www.mpb.co.nz/product/hydrowindow-tape

40 Below www.mpb.co.nz/product /40below-2

SUPER-STICK (Marshall Innovations) www.mwnz.com/super_stick

TESCON EXTORIA IBS-OS (Pro Clima)

www.proclima.co.nz/tescon-extora-weathertightness

Watertight www.technoinsulation.com/window-flash-ing-tapes

FlameFlash www.technoinsulation.com/window-flash-ing-tapes

Dristud Cool Tape www.dristud.co.nz/product/9/dris-tud-cool-window-flashing-tape

Dristud Bozz Tape www.dristud.co.nz/product/6/dris-tud-bozz-window-flashing-tape

3.3.12 MECHANICAL CONNECTIONS (UPLIFT & HOLD DOWN)

3.4 JOINT SEALING AND WINDOW TAPE FOR IBS OS'BRACE® RAP The following tapes may be used to seal panels:

3.3.11.5 LVL SYSTEM INSTALLATION SIMPSON STRONG-TIE DTT2Z/ 2 TYPE 17 - CONCRETE FLOOR

10 mm plasterboard as per manufacturer installation guide. Pocket into plasterboard to fix hold-down.


H1.2 treated 90 x 45 MSG8 or LVL8 framing

Simpson Strong-Tie DTT2Z

LVL8 bottom plate nailed with 2 /3.15 x 90 stud

LVL8 45 x 90 running bottom plate

DPC

M12 x 200 mm galv. threaded rod


DPC

Simpson Strong-Tie DTT2Z fixed with 8 screws SDS 6Ø x 38 mm Strong-Drive and one M12 bolt embedded with 100 mm minimum into 14 diameter hole in concrete with Ramset Epcon C6, with 35 x 2.5 mm square washer refer to bracing plan for location

48


6 mm anti- capillary gap

8/6 mm x 30 mm screws

2 /Type 17 (4 mm x 75 mm)

The tape is to be installed in accordance with the specific supplier instructions.

www.ibs.co.nz14


All joints and penetrations must be sealed including:■ Vertical and horizontal joints■ External and internal joints■ Penetrations■ Window and door joineryWhere sealing a joint, ensure the IBS OS’Brace® RAP joins are centred under the tape joint. Use a 25 mm hard PVC roller to ensure full adhesion.

4. IBS OS’BRACE® RAP AS A RIGID AIR BARRIER 4.1 GENERAL Applied to the outer face of the exterior framing, IBS OS’Brace® RAP will minimise the pressure difference across the wall construction, thereby forming part of a weathertight external envelope.

When installed in accordance with Section 3, IBS OS’Brace® RAP performs the function of a rigid air barrier with bracing capacity.

4.2. IBS OS’BRACE® RAP AS A NON-STRUCTURAL RIGID AIR BARRIERWhere OS’Brace® RAP is to be used as a rigid air barrier without a bracing function then the scope of use is increased to include lightweight steel framing provided that a thermal break is installed.

IBS OS’Brace® RAP panels should be nailed off at a minimum of 300 mm centres around the perimeter and through the body of the sheet including the horizontal nogs. Rigidity of the panels will be maximised if the panels are nailed off around the perimeter at 150 mm. Not applicable for systems #6 and #7.

All other installation details to be in accordance with section 3 (IBS OS’Brace® RAP as a bracing element).

Where all joints (vertical and horizontal) are to be sealed with an IBS approved self-adhesive “flashing tape” (see 3.4), building wrap is not required.

IBS OS’Brace® RAP must be allowed to acclimatise for at least 48 hours prior to installation.

When specifying IBS OS’Brace® RAP as a rigid air barrier, the designer must take into account site specific conditions and the building with respect to, but not limited to, the following: ■ Environmental (exposure) zone ■ Wind zone ■ Wall bracing table for wind and EQ demand■ Structural design loads■ Structural framing requirements■ Preparation of substrate■ External envelope ■ Other materials likely to affect the performance of IBS

OS’Brace® RAP

5. AVAILABLE DETAILSIBS supply a number of details to assist in the specification of IBS OS’Brace® RAP. These details are available in dwg, pdf and jpg formats. Details available are as follows:■ 1210 frame layout■ 1211 frame layout brick■ 1212 frame layout sheet plaster■ 1213 frame layout EIFS plaster■ 1214 frame layout weatherboard■ 1220 joints vertical joint■ 1227 joints horizontal■ 1230 corners external corner■ 1231 corners internal corner■ 1250 floor concrete floor edge direct fix■ 1251 floor concrete floor edge cavity■ 1255 floor connections■ 1260 openings lower corner treatment■ 1261 openings upper corner treatment■ 1262 openings window head■ 1263 openings window sill■ 1264 openings window jamb■ 1265 window head■ 1266 window sill■ 1267 window jamb■ 1269 openings pipe■ 1270 wall soffit■ 1281 balustradeRefer to www.ibs.co.nz.

6. IBS OS’BRACE® RAP AS AN INTERNAL LINING6.1. GENERALIBS OS’Brace® RAP can be used as a substrate wall panel for internal walls and partitions where additional stiffness is required or where walls are exposed to high impact. The following fixings are recommended:

Maximum fastener spacing Maximum fastener spacing from board’s edge

Centres at edges (on

board’s perimeter)

Centres at the intermediate

supports


supports


supports

Nails/screws 150 mm 300 mm 10 mm 25 mm

Staples System #6 75 mm 150 mm 20 mm 25 mm

Staples System #7a 75 mm n/a 10 mm n/a

Staples System #7b 75 mm 300 mm 10 mm 25 mm

www.ibs.co.nz 15


7. FINISHING Where used as a bracing element or rigid air barrier, IBS OS’Brace® RAP must not be left exposed for more than 90 days.

A 20 mm ventilated cavity and the cladding/joinery system must be installed that complies with the NZ Building Code. Installation of the cavity, cladding, joinery etc must be in accordance with the relevant supplier and in accordance with the Building Consent, where applicable.

Where used as an internal lining it must be coated with a paint or stain system (not water based) or covered with another self supporting lining (such as plasterboard).

8. QUALITY ASSURANCEIBS recommends that installers record the installation of IBS OS’Brace® RAP. This may include:■ Packing slips to show evidence of delivery■ Written notes, and■ Meaningful photos

9. TECHNICAL PROPERTIES

10. ADDITIONAL RESOURCESFor compliance information of IBS OS’Brace®RAP refer to:■ IBS pass™

(Product Assurance Supplier Statement)

Information to help with the design and specification of IBS OS’Brace®RAP refer to:■ IBS Product Specification■ IBS Design & Installation Guide■ IBS CAD drawings

For the DIYer refer to:■ IBS Home Builder Info Sheet

Information to help with the maintenance of IBS OS’Brace®RAP refer to:■ IBS Maintenance

Our warranty for IBS supplied IBS OS’Brace®RAP refer to:■ IBS Warranty

Mechanical Properties Standard Unit Requirement

Board thickness [mm] 6,0

Density EN 323 [kg/m3] ≥600

Internal bond EN 319 [N/mm2] ≥0,34

Internal bond after cycle test EN 321 [N/mm2] ≥0,18

Bending strength major axis EN 310 [N/mm2] ≥22

Bending strength after cycle test major axis EN 310 [N/mm2] ≥9

Bending strength minor axis EN 310 [N/mm2] ≥11

Modulus of elasticity major axis EN 310 [N/mm2] ≥4500

Modulus of elasticity minor axis EN 310 [N/mm2] ≥1800

Swelling in thickness 24h EN 317 [%] ≥15

Tolerance of the mean density EN 323 [%] ±15

Moisture content *1 EN 322 [%] 2 - 12

Sanding grade grade 100

Formaldehyde content*2 EN 120 [mg/100] ≤8,0

ABOUT IBS Independent Building Supplies (IBS) has been distributing panel products around New Zealand since 1993. Our focus is on sourcing the best panel products available from around the world from sustainable renewable resources. IBS products are supported by full technical literature and support providing our customers with the Best Products, the Best Service, and the Best Experience.

1/7 Fraser Road, Panmure Auckland I P: 0800 367 759

www.ibs.co.nz

ibs os’brace® rap os’brace® rap has not been tested as a structural bracing element in...

Documents