division 05 - metals

8/17/2019 Division 05 - Metals

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Common Work Results For Metals

Section 050500 Table of Contents

SECTION 050500 COMMON WORK RESULTS FOR METALS 2

PART 1 - MATERIALS/ PRODUCTS AND FABRICATION 2


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SECTION 050500 COMMON WORK RESULTS FOR METALS

PART 1 - MATERIALS/ PRODUCTS AND FABRICATION

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary

Conditions and Division 01 Specification Sections, apply to this Section.

1.2 MATERIALS

A. Sustainable GSAS Action Submittals

1. Product Data: For recycled content, indicating recycled content and cost.

B. Sustainable GSAS Requirements

1. Credit M.3 Recycled Materials: Recycled content not less than 40 percent.

2. All steel and stainless steel shall be procured in line with requirements of GSAS Credit M.2

Responsible Sourcing.

C. Metal Components

1. The Detailed Design of sections, material thicknesses and the dimensions shown on the

Design Drawings shall be maintained within specified tolerances. 2. All materials and components shall be durable and to the minimum standards set out in the

Performance Specification, together with the relevant British Standards.

3. For each material or component, the total quantity shall be obtained from the same supplier

or manufacturer unless otherwise agreed with the Engineer.

4. All inaccessible steel shall be properly protected against corrosion for the design life of the

Works.

5. All support systems shall be of adequate thickness and strength, to meet the structural

requirements and eliminate risk of distortion in finished surfaces.

6. Protection shall be provided until handover to avoid any blemishes on the finished elements.

7. All exposed metalwork shall be finished in accordance with the relevant British Standards.

Unless otherwise specified, concealed items shall be mill finished aluminium in internal

conditions only, or hot dip galvanised steel in accordance with BS EN ISO 1461. Any cut

edges shall be treated to ensure that the level of protection is maintained.

8. Adequate measures shall be taken to prevent bimetallic corrosion between dissimilar metals

and to isolate aluminium components from cementitious surfaces. To this end attention is

drawn to publication PD 6484 'Commentary on corrosion at bimetallic contacts and its

alleviation'.

D. Aluminium

1. All extruded aluminium alloy members shall be fabricated from the appropriate grade of

aluminium alloy complying with BS EN 754: Parts 3-5 and BS EN 755: Parts 1-9 unless

otherwise specified.


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2. Unless specified otherwise, aluminium sheeting shall be a minimum of 3mm thick and satisfy

the requirements of BS EN 485: Parts 1-4, BS EN 515 and BS EN 573: Parts 1-3.

3. Only appropriate grades, strengths and thicknesses of aluminium shall be used to ensure

that all structural and finishing requirements of the Performance Specification are met. The

wall thicknesses of aluminium extrusions shall be sufficient to ensure their rigidity in the

lengths required in the final installation.

4. All aluminium fixing brackets and cleats shall be manufactured from the appropriate grade of

alloy to the requirements of BS EN 515, BS EN 573: Part 3, and BS EN 755: Parts 1-9. If

visible, they shall be finished to match the metal panels and framing members.

5. Structural aluminium shall comply with BS EN 1999.

6. All exposed aluminium shall be protected with low tack adhesive film during construction and

prior to handover.

7. Where aluminium is to be anodised, aluminium sheeting and flat panels shall be

manufactured using alloy grade J57S, or acceptable equivalent, and aluminium extrusions

shall be manufactured using alloy grade 6063, or acceptable equivalent.

8. Aluminium panels shall be manufactured such that the grain on each runs in the samedirection.

9. Issue 'Die Drawings' to the Engineer for review. These shall be a component of the

Contractor's Drawings for relevant systems. The 'Die Drawings' shall indicate polished

surfaces and shape.

10. Aluminium extrusions containing score lines resulting from poorly polished surfaces shall not

be acceptable.

11. Aluminium sheets shall not suffer bowing, dimpling, oil canning, sagging, pillowing, rippling,

warp, abrupt transitions or other visible deformation or irregularity.

E. Mild Steel

1. All mild steelwork shall comply with BS EN 1993, unless stated otherwise.

2. Steel plate, strip and sheet shall be in accordance with BS 1449: Part 1 and BS EN 10346,

as applicable.

3. Fabrication of steelwork shall be in accordance with the Performance Specification.

4. Before and after making permanent connections in frames and other structural elements,

which are assembled before delivery to Site, the fit shall be checked for accuracy.

5. Welding procedures shall be such that distortion is reduced to a minimum and local distortion

rendered negligible in the final fabrication. Corrections, if necessary, shall be undertaken by

a method which has been agreed to by the Engineer.

6. No welds other than those shown on the Contractor's Drawings, even for temporary

attachments or repairs, shall be acceptable unless agreed in advance by the Engineer. If

welded temporary connections are agreed upon, then the welding and removal of the

connection shall be in accordance with BS EN 1011: Parts 1 and 2.

7. Vent holes in hollow sections shall be sealed in a manner that shall prevent the ingress ofmoisture. The proposed method of achieving this requirement shall be submitted for review

by the Engineer.

8. External visible lines and depressions caused by the internal welding of hollow section

steelwork shall be positioned in the works so as to be non-visible.

F. Stainless Steel

1. Unless otherwise specified, stainless steel shall be austenitic and non-magnetic to BS EN

10088.

a. Sheet, strip and plate to BS EN 10088: Part 2.


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b. Bars, rods, wire and sections to BS EN 10088: Part 3.

c. Welded circular tube to BS EN 10296: Part 2.

d. Seamless circular tube to BS EN 10297: Part 2.

2. Specific grade designations shall be either as specified in the relevant sections of the

Performance Specification or, where not identified specifically, selected to meet the

performance criteria specified for the particular element or components.

3. Stainless steel Finishes as follows;

a. Internal conditions: Unless specified otherwise, stainless steel shall be brushed finish

(240 grit finish), achieved without the use of aluminium oxide abrasives.

b. External conditions: Unless specified otherwise, stainless steel shall be brushed finish

achieving a 2K finish (surface roughness of


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c. Shall be manufactured using the lost wax process or such other process as may be

proposed by the Contractor and accepted by the Engineer.

d. Exposed feeder ports and die lines shall not be acceptable in the finished castings.

e. The surface finish of the castings shall be determined by the submission of samples for

review and acceptance by the Engineer. Samples once accepted should be the

standard required for all subsequent castings to be used in the works.

f. The surface roughness of the casting surface prior to any subsequent finishing process

shall be SCRATA A2 or better.

g. Make allowance for two post production finishing processes to be utilised. The

processes shall be agreed with the Engineer and shall include blast finishes (including

bead blasting) and electropolishing or acid pickling.

10. Stainless steel wire, cold-forged fasteners and similar components shall comply with BS EN

10263: Part 5.

11. Stainless steel for wall ties and other components associated with masonry construction

shall comply with BS EN 845: Part 1. 12. Stainless steel shall be protected where possible using appropriate adhesive film, to the film

manufacturer's written recommendations.

13. If stainless steel has not been protected by adhesive film, thoroughly clean prior to

presentation to the Engineer for acceptance.

G. Weathering Steel

1. Steel shall be high strength, low alloy, atmospheric corrosion resistant steel to ASTM A 242/

A 242M, ASTM A 588/ A 588M, ASTM A606 and as described in BS EN 10025: Parts 1-6.

2. The protective oxide shall provide a consistent, uniform finish to all components including all

perforations, welds and fixings.

3. Steel surfaces shall be prepared by blast-cleaning or pickling to remove mill scale.

Contamination from grease, oil or shop marking shall be avoided.

4. All welds shall be carried out with techniques compatible with the corrosion resistant steel as

recommended in writing by the manufacturer and finished by power grinding or blast

cleaning to remove welding slag and spatter. Ensure that weld-points weather at the same

rate as the other materials.

5. The Detailed Design shall ensure consistent corrosion rates and appearance for the design

life of the building.

H. Copper

1. Copper shall be to BS EN 1172 and BS EN 1652.

2. Copper shall, where applicable, comply generally with CP 143: Part 12 and current good

practice as described in the current editions of the Copper Development Associationpublications and as recommended by the system manufacturer, unless specified or agreed

otherwise.

3. Where specified to be pre-patinated, copper shall have consistency in appearance and

composition of naturally aged copper and shall achieve the visual requirements of the

Engineer as produced through sampling.

4. Copper shall be free from inclusions, laminations and pinholes.

I. Bronze

1. Bronze (alloy of copper and tin) shall be to BS EN 1172 and BS EN 1652.


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2. Bronze shall, where applicable, comply generally with CP 143: Part 12 and current good

practice as described in the current editions of the Copper Development Association

publications and as recommended by the system manufacturer, unless specified or agreed

otherwise.

3. Bronze shall be free from inclusions, laminations and pinholes.

J. Brass

1. Brass (alloy of copper and zinc) shall be to BS EN 1172 and BS EN 1652.

2. Brass shall, where applicable, comply generally with CP 143: Part 12 and current good

practice as described in the current editions of the Copper Development Association

publications and as recommended by the system manufacturer, unless specified or agreed

otherwise.

3. Brass shall be free from inclusions, laminations and pinholes.

K. Zinc

1. Zinc and zinc alloys shall be to BS EN 988 and, where applicable, BS EN 501.

2. Zinc shall, where applicable, comply generally with CP 143: Part 5 and current good practice

as described in the current editions of the Zinc Information Centre publications and as

recommended by the system manufacturer, unless specified or agreed otherwise.

3. Zinc shall be free from inclusions, laminations and pinholes.

1.3 WORKMANSHIP

A. Fabrication Generally

1. Fabricate components carefully and accurately to ensure compliance with the Design and

the Performance Specification.

2. Do not permit contact between dissimilar metals in components that are to be fixed where

moisture may be present or occur.

3. Finished components shall be rigid and free from distortion, cracks, burrs and sharp arrises.

Moving parts shall move freely and without binding.

4. Unless specified otherwise, mitre corner junctions of identical sections.

B. Cold Formed Work

1. Use brake presses or cold rolling to produce accurate profiles with straight arrises.

C. Adhesive Bonding

1. Prepare surfaces of metals to receive adhesives by degreasing and abrading mechanically

or chemically.

2. Use adhesives to manufacturer's written recommendations.

3. Form bond under pressure.

D. Thermal Cutting of Stainless Steel

1. After cutting, grind off material that is liable to corrode.

E. Welding/ Brazing Generally


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1. Thoroughly clean surfaces to be joined.

2. Ensure accurate fit using clamps and jigs where practicable. Use tack welds only for

temporary attachment.

3. Make joints with parent and filler metal fully bonded throughout with no inclusions, holes,

porosity or cracks.

4. Prevent weld spatter falling on surfaces of materials that will be self-finished and visible in

completed work.

5. Remove all traces of flux residue, slag and weld spatter.

6. Metal arc welding shall be to BS EN 1011: Parts 1 and 2, or other methods subject to review

by the Engineer.

F. Site or Shop Welding

1. Where Site or shop welding is required, it shall be by the process known as manual inert gas

tungsten-arc welding and it shall be carried out in accordance with BS EN ISO 15614: Part 1

and by welders tested in accordance with BS EN 287: Part 1 and BS EN ISO 9606. 2. Welds shall be continuous and of a material and technique suitable to the sections being

assembled.

3. Weld finish shall be smooth with all flux residues removed and no surface defects (e.g.

undercut, porosity, deep ridges, etc.).

G. Brazing

1. Brazing shall be in accordance with BS EN 14324.

H. Finishing Welded/ Brazed Joints

1. Visible butt joints in completed work shall be smooth, flush with adjacent surfaces.

2. Visible fillet joints in completed work shall be executed neatly. Grind smooth where specified.

I. Applying Coatings

1. Coatings shall be applied after fabrication is complete and all fixing holes have been drilled,

unless otherwise specified.

2. Prior to coating application, remove all paint, grease, flux, rust, burrs and sharp arrises.

3. Make good all defects that would show after application of coating and finish surfaces

smooth.

END OF SECTION


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Shop Applied Coatings For Metal


SECTION 050513 SHOP APPLIED COATINGS FOR METAL 2

PART 1 - MATERIALS/ PRODUCTS AND APPLICATION 2


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SECTION 050513 SHOP APPLIED COATINGS FOR METAL

PART 1 - MATERIALS/ PRODUCTS AND APPLICATION




1.2 MATERIALS


1. Product Data: For paints and coatings, indicating VOC content.

2. Laboratory Test Reports: For paints and coatings, indicating compliance with requirements

for low emitting materials.


1. Credit IE.9 VOC Content: For site applications that are inside the weatherproofing system,

paints and coatings shall comply with VOC content limits of authorities having jurisdiction

and the following VOC content limits:

a. Primers, Sealers, and Undercoaters: 100 g/L.

b. Rust Preventive Coatings: 100 g/L. c. Zinc Rich Industrial Maintenance Primers: 100 g/L.

d. Anti Corrosive Coatings: 250 g/L.

e. Pretreatment Wash Primers: 420 g/L.

C. Appearance

1. All finishes shall be stable, fade resistant and not affected by ultraviolet light. Provide data

and samples for review by the Engineer.

2. All finishes shall be durable, of uniform texture and colour and be resilient to all known and/

or specified environmental and pollution effects. This shall include scratching and cigarette

smoke and burns, etc. Submit data and samples for review by the Engineer.

3. Minor scratches and blemishes shall be repaired using the coating manufacturer's

recommended products and system, matching original finish for colour, texture and gloss.

Repair coatings shall be visually acceptable to the Engineer. Confirmation shall be provided

that the repair to the damaged finish complies in all respects to the requirements of the

Performance Specification. Guarantee in writing that the damaged or defective coating is

satisfactory for the proposed remedial paint system. Employ an independent finishing

consultant to carry out an inspection and any necessary tests and supply a full report to the

Engineer.

4. All finishes shall be within the limits of the agreed samples and without irregularities or

distortions. Fixings, stiffeners, etc. which are not intended to be visible shall be treated so

that there is no discontinuity in the finished surface appearance.


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D. Surface Preparation of Steelwork

1. Surface preparation shall remove all rust, scale and surface contamination to leave a surface

equivalent in cleanliness to Sa 2.5 quality of Swedish standard SIS 05-59-00. (BS EN ISO8501: Part 1) and cleanliness rating of 2 or better toBS EN ISO 8502: Part 3. In general this

shall be achieved by acid pickling, except where the presence of paint, oil, grease, welding

slag, etc. renders this ineffective, and in all weld areas, the steel shall be locally blast-

cleaned to Sa 2.5 quality of Swedish standard SIS 05-59-00. (BS EN ISO 8501: Part 1).

1.3 FINISHES

A. Liquid Organic Coating

1. For aluminium alloy components to BS 4842.

B. Plating of Surfaces

1. Cadmium/ zinc plating of iron and steel surfaces shall comply with BS EN ISO 2081 and BS

EN ISO 2082.

2. Chromium plating shall comply with BS EN ISO 1456.

C. Galvanising Generally

1. To BS EN ISO 1461.

2. Coating thicknesses shall comply with BS EN ISO 1461 and BS EN ISO 14713 to meet the

requirements of the Performance Specification.

3. Where galvanising is visible, the final finish shall be smooth, continuous, consistent and free

from flux staining and other forms of staining. Coating weight shall be as consistent

maintaining a uniform appearance throughout the service life of the Works.

D. Galvanised Self Finish Surfaces

1. Blast Clean: Blast clean to BS EN ISO 8504: Parts 1 and 2 and BS EN ISO 8503, Sa 2.5

where applied thickness of coating is greater than 86 microns.

2. Preparation: Edge grind, remove all grease, oil and varnish and any other surface

contaminants, ensure that any oil or silicon based anti-weld spatter is removed, remove weld

spatter, grind welds as required and fill pits and other surface imperfections that may cause

the premature failure of the coating system.

3. Galvanising: The steelwork shall be supplied to the galvaniser in a suitable condition to be

acid pickled in dilute hydrochloric acid, passivated and then hot dip galvanised in accordancewith the provisions of BS EN ISO 1461.

4. Uniformity: The galvanising shall be carried out in such a way as to maximise the

smoothness and uniformity of the deposited coating. Only use double dipping where no

alternative exists.

5. Touching-up is not allowed unless agreement is given by the Engineer. In which case, it shall

be in accordance with BS EN ISO 1461 and following the recommendations of the

'Engineers & Architects Guide: Hot Dip Galvanising' published by the Galvanisers

Association.

a. The maximum size of an area of touch-up is to be determined by locating the point on

the damaged surface that is furthest from an intact galvanised coating. If the distance


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from this point to the galvanising is in excess of 10mm, then the member shall be re-

galvanised or rejected.

b. Galvafroid or paint applied finishes are not permitted under any circumstances.

6. Refer to the recommendations of the Galvanisers Association for galvanising and zinc metal-

spraying.

7. Immersion process: This shall be discussed and agreed with the Engineer and submitted for

formal comment. This is to ensure that during the galvanising process drips are not allowed

to run off fair-faced surfaces and thus disfigure them. Fair-faced surfaces are all those

surfaces that will be visible in the completed Works. Agree location of all fair-faced surfaces

with the Engineer before application.

8. Breathing Holes: Locate in unobtrusive places. Agree the location of these holes with the

Engineer and mark clearly on the Contractor's Drawings.

9. Distortion: Ensure that no distortion of fabricated elements occurs during galvanising. Advise

the Engineer on the possibility for distortion of the steelwork elements during the galvanising

process to enable design modifications of components to be made before fabrication ofthese components.

E. Galvanised Surfaces to be Over Painted

1. Galvanised steelwork to be painted.

2.

3. Preparation: As recommended by the manufacturer of the applied coating system.

4. To BS EN ISO 1461 and BS EN ISO 12944: Parts 1 to 8.

F. Sprayed Metal Coatings

1. To BS EN ISO 2063.

2. Minimum coating thickness shall comply with Table 1 of BS 2569: Part 2.

END OF SECTION


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Metal Fastenings


SECTION 050523 METAL FASTENINGS 2

PART 1 - MATERIALS/ PRODUCTS AND FABRICATION 2

PART 2 - SITE INSTALLATION 4


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Metal Fastenings

SECTION 050523 METAL FASTENINGS

PART 1 - MATERIALS/ PRODUCTS AND FABRICATION




1.2 MATERIALS


1. Product Data: For adhesives, indicating VOC content.

2. Laboratory Test Reports: For sealants, indicating compliance with requirements for low-

emitting materials.


1. Adhesive products shall comply with the requirements of the California Department of Public

Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical

Emissions from Indoor Sources Using Environmental Chambers."

2. Adhesives shall have a VOC content of 50 g/L or less.

3. Chemical Bonding Compound shall have a VOC content of 510 g/L or less.

C. Fixing Generally

1. All fixings shall be of sufficient strength, appropriate to their location, and are provided at

adequate positions so as to ensure the performance of the elements being attached. The

fixings shall be suitable and used solely for the purposes intended by the manufacturer in

order to satisfy the requirements of the Performance Specification.

2. Unless otherwise specified, observe the following requirements:

a. Durability - fixings shall be selected such that adequate protection against any corrosion

likely to occur in their position of use is provided for the service life specified.

b. Rigidity - fixings shall be used which are suited to the likely stresses, movements and

vibrations in use.

c. Appearance - unless otherwise specified, fixings shall not be visible; where fixings are

visible these shall match or suit the items being fixed or comply with the Design

Drawings. Provide samples of all exposed fixings.

d. Removable items that require accessibility or removal shall be fixed with hidden screws

and/ or bolts, unless otherwise specified.

3. Use fixings that are suitable for their intended purpose and adequate to comply with the

requirements stated in the Performance Specification.

4. All bolts, screws, nuts, anchors and other fixings shall be of adequate strength for their

designed purpose and shall, unless specified otherwise, be manufactured from the most


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Metal Fastenings

appropriate grade of austenitic stainless steel or other materials as specified. Where

specified, structural steel fixings shall comply with the grades specified.

5. Supply all necessary and appropriate fasteners, fixings, bearings, brackets, etc. necessary

for the safe and proper installation plus associated flashings and closures.

6. All fixings shall conform to all statutory requirements in respect of strength and type.

7. Adequate measures shall be taken to prevent bimetallic corrosion between dissimilar metals

and to isolate aluminium components from cementitious surfaces. To this end attention is

drawn to publication PD 6484 'Commentary on corrosion at bimetallic contacts and its

alleviation'.

8. Generally, fixings within aluminium framing components shall not be visible, with the

exception of capping pieces fixed to vertical mullions.

9. Visible fixings shall be restricted to the assembly of non-visible elements to support

steelwork, using round-headed Allen bolts into a proprietary system.

10. Any steel sub-frame assemblies shall be galvanised and effectively weatherproofed to avoid

exposure to the external environment.

11. Provide cast-in channel fixings in concrete and fixings directly made to structural steelwork. 12. All fixings shall be tested in accordance with BS 5080: Parts 1 and 2 by an independent

Testing Authority acceptable to the Engineer

D. Powder Actuated Fixing Systems

1. Do not use powder actuated fixing systems without acceptance by the Engineer.

2. Tools shall be to BS 4078: Part 2 and Kite mark certified.

3. Fasteners, accessories and consumables shall be types recommended by the tool

manufacturer.

E. Screw Fixings

1. Washers and screw cups, where specified, shall be of the same material as the screw.

F. Packings Generally

1. Provide suitable, tight packings at fixing points to take up tolerances and prevent distortion.

2. Use non-compressible, rot-proof, non-corrodible materials positioned adjacent to fixing

points.

G. Types of Nail

1. Nails shall be to BS 1202: Part 1.

H. Masonry Nails

1. Do not use without acceptance by the Engineer.

I. Plugs Generally

1. Use proprietary types selected to suit the background, loads to be supported and conditions

expected in use.

J. Resin Anchors

1. Where use of resin anchors are proposed, use epoxy resin type not polyester resin anchors.


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Metal Fastenings

PART 2 - SITE INSTALLATION

2.1 APPLICATION

A. Adhesives

1. Surfaces to receive adhesive shall be sound, unfrozen and free from dust, grease and any

other contamination likely to affect bond. Where necessary, clean surfaces using methods

and materials recommended by the adhesive manufacturer.

2. Surfaces shall be sufficiently smooth and even to suit the gap-filling and bonding

characteristics of the adhesive. Prepare as necessary.

3. Operatives shall observe both the manufacturers' and statutory requirements for storage and

safe usage of adhesives.

4. No adhesives shall be used in unsuitable environmental conditions or beyond the

manufacturer's recommended maximum shelf life or open-pot time periods. 5. Adhesives shall be applied using recommended spreaders/ applicators to ensure correct

coverage. Bring surfaces together within the recommended time period and apply pressure

evenly over the full area of contact surfaces to ensure full bonding.

6. Surplus adhesive shall be removed using methods and materials recommended by

the adhesive manufacturer and without damage to affected surfaces.

B. Fixings

1. Carry out all necessary preparation work such as drilling, plugging, screwing, bolting, cutting

for anchor bolts or sockets to be cast-in and for making good, including grouting-in of anchor

bolts and fixings where necessary.

2. The method of fixing shall not damage anything being fixed or anything receiving fixings.

3. Welding shall not be permitted, unless accepted by the Engineer.

4. Fasteners shall be installed with a co-ordinated purpose design tooling system that

incorporates a mechanical depth locator to ensure consistent depth setting and facilitates

perpendicular installation. The fastener manufacturer shall be capable of providing on-Site

instruction in the use of the fastener installation tooling system.

5. All fixings shall comply with requirements of the International Building Code and any

subsequent amendments thereto.

6. Submit QA/ QC procedures for inspection of fixings to the Engineer to include, but not be

limited to, checking each fixing for correct torques, depth of mortices, alignment, etc.

7. Ensure that no lock-up stresses are generated.

C. Powder Actuated Fixing

1. Tools shall be used in accordance with BS 4078: Part 1. Operatives shall be trained and

certified as competent by the Contractor

2. Ensure that operatives take full precautions against injury to themselves and others.

3. Remove all unspent cartridges from the Site when no longer required.

4. Apply zinc rich primer to heads of fasteners used externally in external walls or in other

locations subject to dampness.

5. Use top hat section plastic washers to isolate cartridge-fired nails from stainless steel

components fixed externally, in external walls or in other locations subject to dampness.

D. Screw Fixings


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Metal Fastenings

1. All screws shall have clearance holes. Screws of 8 gauge or more and all screws into

hardwood shall have pilot holes approximately half the diameter of the shank.

2. Before using brass, aluminium or other soft metal wood screws, pre-cut the thread with a

matching steel wood screw.

3. Do not hammer screws unless specifically designed to be hammered.

4. Countersink screw heads not less than 2mm below timber surfaces that will be visible in the

completed work, unless specified otherwise.

E. Packings Generally

1. Ensure that packings do not intrude into zones that are to be filled with sealants.

F. Nail Fixing

1. In joints, use not less than two nails and opposed skew nailing unless specified otherwise.

2. Drive nails fully in without splitting or crushing the material being fixed. 3. Punch nail heads below surfaces that will be visible in the completed work.

G. Plugs Generally

1. Locate plugs accurately in correctly sized holes in accordance with the manufacturer's

recommendations.

H. Resin Anchors

1. Fix resin anchors in accordance with the manufacturer's instructions.

2. Ensure any debris and dust are removed from the drilled holes prior to activating the resin

anchor.

END OF SECTION


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Decorative Metal

Section 057000 (D) Table of Contents

SECTION 057000 DECORATIVE METAL 2

PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE 2

PART 2 - SYSTEMS, MATERIALS AND FABRICATION 7



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Decorative Metal

SECTION 057000 DECORATIVE METAL

PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE




1.2 SPECIFICATION AND SCOPE

A. Descriptive Works

1. For design and general performance requirements, refer to Division 01 of the Performance

Specification. Specific performance requirements are provided in each trade section.

2. Complete the Detailed Design, manufacture, supply, install and warrant the works whilst

complying with the visual intent indicated on the Design Drawings and criteria stated in the

Performance Specification.

3. Where no material, product or supplier is indicated in the Performance Specification,

propose suitable materials and systems prior to Contract award which comply with the visual

intent and performance criteria stated and remain fully responsible for the Detailed Design of

the works.

4. Where a particular material, product or supplier is indicated in the Performance Specification,

such material, product or supplier shall be deemed indicative representing the Engineer's

design intent only. The Contractor may complete the installation using that product, or suchother confirmed as acceptable by the Engineer in writing, but shall remain fully responsible

for the Detailed Design and performance of the works.

B. Scope of Works

1. This section of the Performance Specification, when read in conjunction with the Design

Drawings, provides particular requirements with respect to the following:

a. Metal copings.

b. Metal trims.

C. Particular Interfaces

1. Complete the Detailed Design of all interfaces with adjoining trades prior to commencement

of manufacture.

2. Ensure that all interfaces are fully co-ordinated prior to commencement.

1.3 SYSTEM TYPES

A. AM-101

1. Bronze trim set into flooring


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Decorative Metal

B. AM-102

1. Metal trim to joinery

C. AM-901

1. Metal top skin roof nosing

D. AM-904

1. Aluminium primary connection covering

E. AM-903

1. Metal wall lining, incorporating louvre infill

F. AM-902

1. Metal bottom skin roof nosing

1.4 SUBMITTALS AND TESTING

A. Tender Response

1. Provide tender submittals in accordance with the requirements of Division 01 of the


2. Submit a design response with the Tender proposal, to include all profiles of typical

conditions, with dimensions.

3. The Tender design response shall include:

a. Samples where specified.

b. List of Tests included.

c. QA/ QC programme.

d. List of proposed Contractor's Drawings.

e. Summary of deviations from the Performance Specification.

f. Outline technical specifications reflecting proposed materials/ systems.

g. A list of proposed suppliers and sub-contractors intended to be used.

B. Sustainable GSAS Action Submittals


2. Product Data: For sealants, indicating VOC content.

3. Laboratory Test Reports: For sealants, indicating compliance with requirements for low

emitting materials.

C. Pre-contract Samples

1. In accordance with Division 01, pre-contract samples of the following shall be provided:

a. All visible fixings.


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D. Post Contract Samples

1. In accordance with Division 01, post contract samples of the following shall be provided:

a. All visible fixings.

E. Mock-ups

1. A mock-up shall be provided in accordance with Division 01 as follows:

a. Typical works interface with surrounding structure including all fixing details.

F. Prototypes

1. Prototypes shall be as indicated in Appendix A Prototype Requirements of this Performance

Specification.

G. Benchmark Requirements

1. The following quality benchmarks shall be provided in locations to be agreed with the

Engineer, in accordance with Division 01:

a. An area determined by the Engineer of each element of the works fully installed,

completed and accepted by the Engineer.

H. Test Requirements

1. Provide evidence/ testing data and reports to demonstrate that all materials/ products

proposed have been tested to meet the standards specified herein.

2. Where testing has not previously been carried out on products/ materials proposed, arrange

for tests to be carried out to comply with the Performance Specification to the acceptance of

the Engineer.

3. The provision of testing data or the carrying out of tests does not relieve the Contractor of his

responsibilities regarding the performance requirements, durability or service life

requirements, etc.

1.5 PERFORMANCE REQUIREMENTS

A. General

1. Refer to Division 1 Part 5.

2. The works generally shall be designed, constructed and installed to BS 4211, BS 5395, BS

6180 and BS EN ISO 14122, unless stated otherwise.

B. Specific Movements

1. The works shall be designed, fabricated and installed to withstand all movements of the

building structure under all design loads or combination of loads without damage or any

reduction in the performance of the works.

2. All fixings shall be capable of providing adequate adjustment with the minimal use of packing

shims, which shall be agreed with the Engineer.


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3. All necessary movement joints shall be designed to accommodate the maximum movements

that can be derived from the specified and determined design loads and movements. Under

maximum movements the joints shall meet the requirements of the Performance

Specification.

4. The works shall resist all specified static and dynamic design loads likely to be encountered

without causing permanent deformation of components or the failure of members or seals

and shall transmit such loads safely to the points of support.

5. The works shall not deflect under loading in any way that is detrimental to any elements of

the works or adjacent structural or building elements.

6. The works shall accommodate the following movements without any permanent deformation

or reduction in the specified performance:

a. Deflection under design loads.

b. The effects of internal/ external wind and pressure loadings.

c. Changes in dimension and shape of components arising from building movements,

including settlement, creep, twisting and racking. d. Movement of any joint whether designed to permit movement or not.

e. Thermal movements.

C. Specific Dead Loads

1. The works shall be capable of accommodating the following dead loads without any

reduction in performance:

a. The works' own dead load shall be accommodated locally and without causing

deflections or movements, which adversely affect the performance or appearance of the

system components.

b. The dead loads derived from permanent fixtures or services attached to the surfaces of

the works.

2. When calculating loads the worst combination shall be considered, taking account of the fact

that the pressure coefficients at various locations may determine more than one design

criterion.

D. Specific Live Loads

1. The works shall be capable of accommodating the following live loads without any reduction

in performance:

a. All loads resulting from movements of the building structure and support structure.

b. A horizontal line load applied to the works, due to the occupants and vehicles, inaccordance with BS 6180 and BS 6399: Part 1.

c. Impact loads, or transferred impact loads, that occur during the service life of the works,

without deterioration in performance and without sustaining non-repairable damage.

d. Loads imposed during replacement.



criterion.

E. Deflections


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1. The maximum allowable deflection of any element of the works, when carrying full design

loads, shall not exceed ***15mm or 1/ 175*** of their clear span in a direction normal to the

plane of that element, whichever is the lesser value.

2. The works shall not deflect under loading in any way that is detrimental to any element of

themselves or adjacent structural or building elements.

3. All components, couplings and fixings shall be capable of accommodating all of the above

deflection without permanent distortion, deformation or failure.

4. The works shall accommodate differential structural movements arising from any loads

imposed by adjacent structures.

5. The magnitude of the allowable deflections shall be reduced if they are detrimental to any

part of the works, their support structure or internal finishes.

F. Structural Integrity

1. The works shown on the Contractor's Drawings and described in the Performance

Specification shall be in accordance with BS 5395, BS 6180 and BS EN ISO 14122, unlessstated otherwise.

2. Design and construction of barriers shall be in accordance with BS 6180.

G. Specific Fire Performance Requirements

1. Refer to the Fire Consultant Report.

H. General

1. The performance criteria shall be satisfied for the full design life of the works, as stated in the

Performance Specification, provided always that the maintenance has been carried out as

specified.

I. Impact and Abrasion Resistance

1. The works shall resist abrasion from agreed cleaning methods and maintenance systems

without any noticeable change in surface appearance. Generally, surfaces shall be

sufficiently hard (including glass coatings) to resist all reasonable impacts from hand-held

objects in accordance with BS EN 356.

2. Impact tests shall be carried out to all works adjacent to pedestrian areas in accordance with

the recommendations of BS 8200. Tests shall conform to category ***B*** requirements.

3. The extent of any damage determined through testing shall be recorded and, where

possible, quantified. Details shall be submitted to the Engineer.

4. Details of tests shall be provided to demonstrate the performance of materials and finishes in

resisting abrasion from pedestrian traffic (hands, rings, luggage, cloth, shoes, etc.) and anyother abrasion resulting from adjacent traffic movements.

J. Demountability

1. Elements of the works shall be individually and independently removable ensuring access for

maintenance and/ or replacement of glazed and solid units in the event of breakage or

damage.

2. The removal of units shall not affect the performance or safety of adjacent or any other part

of the works.


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PART 2 - SYSTEMS, MATERIALS AND FABRICATION

2.1 SYSTEM DESCRIPTIONS

A. AM-101

1. Bronze trim set into flooring

2. Manufacturer: NECE Spa, or acceptable equivalent.

3. Colour: 3B LP.

B. AM-102

1. Metal trim to joinery

2. Colour: Champagne LP.

C. AM-901

1. Metal top skin roof nosing

2. Provide secondary support framework to form nosing profile to top skin roof RFS-601 in

Section 107353 of the Performance Specification, as indicated on the Design Drawings,

fixed back to primary structure.

3. Form 3mm thick aluminium sheet nosing formed to follow profile of inner top skin roof edge

and follow the geometry of inner roof.

a. Increase metal thickness or reinforce with concealed stiffeners, honeycomb backing

materials, or both, as needed to provide flat visible surfaces, with no surface defects.

4. Custom fabricate sheet metal nosing to comply with details indicated on the Design

Drawings and recommendations in sheet metal standards that apply to design, dimensions,

geometry, metal thickness, and other characteristics of item required. Fabricate sheet metal

nosing in shop to greatest extent and lengths as possible.

5. Fabricate sheet metal nosing in thickness or weight needed to comply with performance

requirements, but not less than that specified for each application and metal.

6. Integral Gutter: Provide metal support framework to form gutter profile behind nosing, as

indicated on the Design Drawings, gutter shall be walkable and include additional support

framework as required for maintenance access.

a. Top edge of gutter/ nosing shall incorporate integral steps and mansafe handrail, with

vertical uprights securely fixed back to support framework to provide abseiling

maintenance to louvres below.

7. Obtain field measurements for accurate fit before shop fabrication.

8. Form sheet metal nosing to fit substrates without oil canning, buckling, and tool marks; true

to line, levels, and profile; and with exposed edges folded back to tight joints.

9. Expansion Provisions: Form metal for thermal expansion of exposed nosing.

a. ***Form expansion joints of inter-meshing hooked flanges, not less than 25mm deep,

filled with butyl sealant concealed within joints.***

b. Use lapped expansion joints only where indicated on the Design Drawings.


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10. Sealant Joints: Where movable, non-expansion type joints are required, form metal to

provide for proper installation of elastomeric sealant according to sheet metal standard.

11. Seams: Fabricate non-moving seams with flat-lock seams. Form seams and seal with

elastomeric sealant unless otherwise recommended by sealant manufacturer for intended

use.

12. Conceal fasteners and expansion provisions where possible. Do not use exposed fasteners

on faces exposed to view.

13. Finishes: Aluminium shall be four coat PVDF finish and the colour shall be agreed with the

Engineer through the sampling process, refer to Section 099746 of the Performance

Specification.

D. AM-904

1. Aluminium primary connection covering

2. Provide secondary support framework to form connection covering profile as indicated on the

Design Drawings, fixed back to primary structure. 3. Form 3mm thick aluminium sheet connection covering formed to follow profile of structural

steelwork connection.

4. Increase metal thickness or reinforce with concealed stiffeners, honeycomb backing


5. Custom fabricate sheet metal connection covering to comply with details indicated on the

Design Drawings and recommendations in sheet metal standards that apply to design,

dimensions, geometry, metal thickness, and other characteristics of item required. Fabricate

sheet metal node covering in shop to greatest extent as possible.

6. Obtain field measurements for accurate fit before shop fabrication.

7. Form sheet metal connection covering to fit substrates without oil canning, buckling, and tool

marks; true to line, levels, and profile; and with exposed edges folded back to tight joints.

8. Conceal clip fasteners to form joints on sides of connection and expansion provisions wherepossible. Do not use exposed fasteners on faces exposed to view.

9. Finishes: Aluminium shall be anodised to match Nice SPA Metal - Champagne Scotch

(Scotch Brite) and be agreed with the Engineer through the sampling process, refer to

Section 099753 of the Performance Specification.

E. AM-903

1. Metal wall lining, incorporating louvre infill

2. Provide secondary support framework fixed back to primary structure.

3. Form wall lining from steel sheets, concealed fixed back to support framework.

4. Where indicated on the Design Drawings, provide aluminium framed louvred inserts into

steel wall lining. louvres shall be mounted in front of frame to conceal framework.

5. Finishes:

a. Aluminium: Anodised to match Nice SPA Metal - Champagne Scotch (Scotch Brite) and

be agreed with the Engineer through the sampling process, refer to Section 099753 of

the Performance Specification.

b. Steel: ***To be confirmed***

F. AM-902

1. Metal bottom skin roof nosing


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2. Provide secondary support framework to form nosing profile to bottom skin roof RFS-602 in

Section 107353 of the Performance Specification, as indicated on the Design Drawings,

fixed back to primary structure.

3. Form 3mm thick aluminium sheet nosing formed to follow profile of the inner bottom skin roof

edge and follow the geometry of the inner roof.

a. Increase metal thickness or reinforce with concealed stiffeners, honeycomb backing


4. Custom fabricate sheet metal nosing to comply with details indicated on the Design

Drawings and recommendations in sheet metal standards that apply to design, dimensions,

geometry, metal thickness, and other characteristics of item required. Fabricate sheet metal

nosing in shop to greatest extent and lengths as possible.

5. Fabricate sheet metal nosing in thickness or weight needed to comply with performance

requirements, but not less than that specified for each application and metal.

6. Obtain field measurements for accurate fit before shop fabrication. 7. Form sheet metal nosing to fit substrates without oil canning, buckling, and tool marks; true

to line, levels, and profile; and with exposed edges folded back to tight joints.

8. Expansion Provisions: Form metal for thermal expansion of exposed nosing.

a. ***Form expansion joints of inter-meshing hooked flanges, not less than 25mm deep,

filled with butyl sealant concealed within joints.***

b. Use lapped expansion joints only where indicated on the Design Drawings.

9. Sealant Joints: Where movable, non-expansion type joints are required, form metal to

provide for proper installation of elastomeric sealant according to sheet metal standard.

10. Seams: Fabricate non-moving seams with flat-lock seams. Form seams and seal with

elastomeric sealant unless otherwise recommended by sealant manufacturer for intended

use.

11. Conceal fasteners and expansion provisions where possible. Do not use exposed fasteners

on faces exposed to view.

12. Provide rainwater drainage holes to prevent rainwater build up in the bullnose works.

13. Finishes: Aluminium shall be four coat PVDF finish and the colour shall agreed with the

Engineer through the sampling process, refer to Section 099746 of the Performance

Specification.

2.2 MATERIALS

A. Sustainable GSAS Requirements

1. Credit M.3 Recycled Content of Aluminium Products: Recycled content not less than 10

percent.

2. Credit IE.9: Sealant shall have a VOC content of 250 g/L or less.

B. Metalwork

1. Refer to Section 050500 of the Performance Specification.

2. Structural steelwork shall comply with the Structural Engineer's documentation.

3. Determine suitable grades and thickness of materials.

C. Fixings


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1. Fixings shall meet the performance requirements.

2. All necessary fixings shall be installed for the works.

3. Direct contact between aluminium or aluminium alloys and treated timber shall be avoided,

unless with the prior acceptance of the Engineer.

4. Visible fixings shall match accepted samples.

5. Unless otherwise specified, the following basic requirements shall be adhered to:

a. Rigidity: Only fixings which are suited to the likely stresses, movements and vibrations

in use without allowing any wobble, creaks or deflection of any fixtures or fittings shall

be used.

b. Removability: Items that require accessibility or removal shall be fixed with bolts.

6. Refer also to Section 050523 of the Performance Specification.

D. Generally

1. Movement joints shall be as indicated on the Design Drawings.

2. The works shall accommodate all movement of joints in a manner that does not compromise

their integrity or appearance.

2.3 FABRICATION

A. Metalwork Generally

1. Refer to Section 050500 of the Performance Specification.

2. All visible cut ends shall be polished smooth with no crude machine cut visible.

3. Welded joints shall be ground and polished smooth.

4. Cut joints/ junctions shall be clean and true without waves or deviations from the vertical and

horizontal planes.

5. Protective coatings and finishes on joints shall be to the same standard as the main

assemblies.

6. Site cutting shall not be permitted.

B. Tolerances

1. Tolerances for fabrication:

a. Deviations in panel length, width and diagonal dimension tolerances shall not exceed

±1mm.

b. The twist and warping shall not cause any point of the panel to be more than 0.5mm outof plane. The twist and warping shall not cause any point of the structural frame to be

more than 2mm out of plane.

PART 3 - SITE INSTALLATION

3.1 WORKMANSHIP

A. General


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1. The works shall be installed in the correct position, within tolerance, and in the correct

relationship to the building structure.

2. All fixing bolts shall be installed in accordance with the manufacturer's recommended

procedures.

3. Protection shall remain in place until all the works are complete. All protective measures

shall be replaced following any inspections by the Engineer.

4. Acceptance shall be received from the Engineer before drilling or cutting parts of the

structure, other than where shown on the Contractor's Drawings.

5. Isolating tape, plastic washers, or other suitable means to prevent bi-metallic corrosion shall

be provided between dissimilar metals, or between preservative treated timber and metal.

6. The works shall be square, regular to line, level and plane, with all junctions fitting to the

stated tolerances.

7. At the time of completion, the visual requirements of the works are such that, within any

planning grid area, the allowable tolerances are to be equally distributed to ensure that:

a. The balustrades are vertical. b. The vertical joints are of equal size and at equal centres.

c. The support mullions are vertical and at even centres.

d. The works' supports have straight lines and flat planes.

e. The horizontal joints are of equal size and in line between adjacent panels.

f. The gap between the panels and structure posts is constant.

B. Installation Tolerances

1. The works shall be erected in proper alignment in relation to established lines and grids

indicated on the Design Drawings.

2. Joints: The width of any joint shall not deviate from the nominal width by more than ±1mm.

Any variation shall be equally distributed with no sudden changes. The works shall be

erected such that no joint is more than 1.5mm from a vertical plane. The cumulative slope

between the same locations on any vertical plane shall not exceed 1 in 1000. The vertical

plane of the works shall be within ±1.5mm of the theoretical position.

3. Alignment: Adjacent elements of the works shall not deviate from either their

intended horizontal or vertical alignment by more than ±2mm.

4. Squareness: Any diagonal length across the panel shall not deviate by more than the lesser

of ±3mm or ±0.075% of design dimension.

5. Bow: The centre section of the element shall not bow by more than the lesser of 3mm or

0.075% of the length of the element measured from a straight line between the ends of the

element.

6. Straightness: Any surface of edge shall not deviate by more than ±2mm from a 2m

straightedge placed against it in a direction parallel to the long axis of the element.

7. Flatness: Any surface shall not deviate by more than ±2mm from a 2m straightedge placedagainst it in any direction.

8. Twist: No section of the element may be twisted by more than 1° from the section at either

end of the element.

END OF SECTION


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Metal Stairs/ Railings/ Handrails

Section 057800 (D) Table of Contents

SECTION 057800 METAL STAIRS/ RAILINGS/ HANDRAILS 2

PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE 2

PART 2 - SYSTEMS, MATERIALS AND FABRICATION 9



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SECTION 057800 METAL STAIRS/ RAILINGS/ HANDRAILS

PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE




1.2 SPECIFICATION AND SCOPE

A. Descriptive Works

1. For design and general performance requirements, refer to Division 01 of the Performance

Specification. Specific performance requirements are provided in each trade section.

2. Complete the Detailed Design, manufacture, supply, install and warrant the works whilst

complying with the visual intent indicated on the Design Drawings and criteria stated in the


3. Where no material, product or supplier is indicated in the Performance Specification,

propose suitable materials and systems prior to Contract award which comply with the visual

intent and performance criteria stated and remain fully responsible for the Detailed Design of

the works.

4. Where a particular material, product or supplier is indicated in the Performance Specification,

such material, product or supplier shall be deemed indicative representing the Engineer's

design intent only. The Contractor may complete the installation using that product, or suchother confirmed as acceptable by the Engineer in writing, but shall remain fully responsible

for the Detailed Design and performance of the works.

B. Scope of Works

1. This section of the Performance Specification, when read in conjunction with the Design

Drawings, provides particular requirements with respect to the following:

a. Stairs.

b. Balustrades and handrails.

C. Particular Interfaces

1. Complete the Detailed Design of all interfaces with adjoining trades prior to commencement

of manufacture.

2. Ensure that all interfaces are fully co-ordinated prior to commencement.

1.3 SYSTEM TYPES

A. AM-302

1. Metal solid/ open grillage, with support framework


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B. AM-401

1. Cat ladder/ Ships ladder/ Metal ladder.

C. ASE-302

1. Travelling gantry/ ladder system and rails

D. BAL-101

1. Metal vomitory handrail - Raked

E. BAL-102

1. Metal vomitory handrail - Straight

F. BAL-103

1. Metal handrail fixed to wall

G. BAL-104

1. Metal balustrade fixed to stair flight and landings

H. BAL-105

1. Metal tubular balustrade and handrail

I. BAL-106

1. Metal balustrades

J. BAL-107

1. Galvanised steel balustrade and handrail

K. BAL-108

1. Structural glazed balustrade/ handrail

L. BAL-109

1. Structural glazed inclined balustrade/ handrail

M. BAL-110

1. Metal Grab Rail, refer to the Metal Railings Section

N. BAL-111

1. Metal Crush Barrier, refer to the Metal Railings Section


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O. BAL-112

1. Glass Balustrade, refer to the Metal Railings Section

P. BAL-113

1. Metal Crush Barrier, refer to the Metal Railings Section

Q. STR-301

1. Precast concrete stairflight

1.4 SUBMITTALS AND TESTING

A. Tender Response

1. Provide tender submittals in accordance with the requirements of Division 01 of the


2. Submit a design response with the Tender proposal, to include all profiles of typical

conditions, with dimensions.

3. The Tender design response shall include:

a. Samples where specified.

b. List of Tests included.

c. QA/ QC programme.

d. List of proposed Contractor's Drawings.

e. Summary of deviations from the Performance Specification.

f. Outline technical specifications reflecting proposed materials/ systems.

g. A list of proposed suppliers and sub-contractors intended to be used.

B. Sustainable GSAS Action Submittals


C. Pre-contract Samples

1. In accordance with Division 01, pre-contract samples of the following shall be provided:

a. 300mm x 300mm sample of stair stringer, tread and riser of each type in proposed

finish. b. 300mm length of the visible clamping plate of each type.

c. 300mm x 300mm sample of the glazed infill of each type.

d. 300mm length of top rail profile or handrail of each type.

e. 300mm x 300mm sample of solid infill of each type.

f. 300mm length of upright or baluster.

g. 300mm length of rod infill.

h. All visible fixings.

D. Post Contract Samples

1. In accordance with Division 01, post contract samples of the following shall be provided:


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a. 300mm x 300mm sample of stair stringer, tread and riser of each type in accepted

finish.

b. 300mm length of the visible clamping plate of each type.

c. 300mm x 300mm sample of the glazed infill of each type.

d. 300mm length of top rail profile or handrail of each type.

e. 300mm x 300mm sample of solid infill of each type.

f. 300mm length of upright or baluster.

g. 300mm length of rod infill.

h. All visible fixings.

E. Mock-ups

1. A mock-up shall be provided in accordance with Division 01 as follows:

a. Mockups shall be as indicated in Appendix A Prototype Requirements of this


F. Prototypes

1. Prototypes shall be as indicated in Appendix A Prototype Requirements of this Performance

Specification.

G. Benchmark Requirements

1. The following quality benchmarks shall be provided in locations to be agreed with the

Engineer, in accordance with Division 01:

a. An area determined by the Engineer of each element of the works fully installed,

completed and accepted by the Engineer.

H. Test Requirements

1. Provide evidence/ testing data and reports to demonstrate that all materials/ products

proposed have been tested to meet the standards specified herein.

2. Where testing has not previously been carried out on products/ materials proposed, arrange

for tests to be carried out to comply with the Performance Specification to the acceptance of

the Engineer.

3. The provision of testing data or the carrying out of tests does not relieve the Contractor of his

responsibilities regarding the performance requirements, durability or service life

requirements, etc.

I. Slip Resistance Testing

1. Testing for slip resistance shall comply with the following documents:

a. 'Assessing the slip resistance of flooring' by The Health and Safety Executive (latest

published version).

b. 'The assessment of floor slip resistance, the UK Slip Resistance Group guidelines' by

The UK Slip Resistance Group (latest published version).

2. Testing shall be performed at an independent UKAS accredited laboratory accredited to

perform the specified test methods.


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3. Pendulum Test: Flooring shall be evaluated in both dry and wet conditions using the

Pendulum Tester in accordance with BS EN 13036: Part 4 and the recommendations of the

UK Slip Resistance Group to obtain the pendulum test value (PTV) specified.

4. The PTV value (with both a 55 and a 96 slider) shall fall in between the range of 36 to 64 and

should have a surface roughness of 20Rz.

5. Roughness Test: Flooring shall be evaluated using a surface roughness meter, in

accordance with the recommendations of the UK Slip Resistance Group, to obtain the

surface roughness (Rz) value specified.

6. Samples shall be tested at the following stages of the project:

a. Approval.

b. Production.

c. Post-installation (in situ).

7. Submit test results to the Engineer for acceptance in due time, prior to each of the project

stages or as agreed with the Engineer. 8. Test samples must include any surface sealer or treatment to be applied to the finished

flooring.

1.5 PERFORMANCE REQUIREMENTS

A. General

1. Refer to Division 01.

B. Specific Movements

1. The works shall be designed, fabricated and installed to withstand all movements of the

building structure under all design loads or combination of loads without damage or any

reduction in the performance of the works.

2. All fixings shall be capable of providing adequate adjustment with the minimal use of packing

shims, which shall be agreed with the Architect.

3. All necessary movement joints shall be designed to accommodate the maximum movements

that can be derived from the specified and determined design loads and movements. Under

maximum movements the joints shall meet the requirements of the Performance

Specification.

4. The works shall resist all specified static and dynamic design loads likely to be encountered

without causing permanent deformation of components or the failure of members or seals

and shall transmit such loads safely to the points of support.

5. The works shall not deflect under loading in any way that is detrimental to any elements ofthe works or adjacent structural or building elements.

6. The works shall accommodate the following movements without any permanent deformation

or reduction in the specified performance:

a. Deflection under design loads.

b. The effects of internal/ external wind and pressure loadings.

c. Changes in dimension and shape of components arising from building movements,

including settlement, creep, twisting and racking.

d. Movement of any joint whether designed to permit movement or not.

e. Thermal movements.


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C. Specific Dead Loads

1. The works shall be capable of accommodating the following dead loads without any

reduction in performance:

a. The works' own dead load shall be accommodated locally and without causing

deflections or movements, which adversely affect the performance or appearance of the

system components.

b. The dead loads derived from permanent fixtures or services attached to the surfaces of

the works.



criterion.

D. Specific Live Loads

1. The works shall be capable of accommodating the following live loads without any reduction

in performance:

a. All loads resulting from movements of the building structure and support structure.

b. A horizontal line load applied to the works, due to the occupants and vehicles, in

accordance with BS 6180 and BS 6399: Part 1.

c. Impact loads, or transferred impact loads, that occur during the service life of the works,

without deterioration in performance and without sustaining non-repairable damage.

d. Loads imposed during replacement.

e. Occupants' movements including running and walking in step.



criterion.

E. Deflections

1. The maximum allowable deflection of any element of the works, when carrying full design

loads, shall not exceed ***15mm or 1/ 175*** of their clear span in a direction normal to the

plane of that element, whichever is the lesser value.

2. The works shall not deflect under loading in any way that is detrimental to any element of

themselves or adjacent structural or building elements.

3. All components, couplings and fixings shall be capable of accommodating all of the above

deflection without permanent distortion, deformation or failure.

4. The works shall accommodate differential structural movements arising from any loads

imposed by adjacent structures.

5. The magnitude of the allowable deflections shall be reduced if they are detrimental to any

part of the works, their support structure or internal finishes.

F. Structural Integrity

1. Staircases, balustrades and handrails shown on the Contractor's Drawings and described in

the Performance Specification shall be in accordance with BS 5395, BS 6180 and BS EN

ISO 14122, unless stated otherwise.

2. Design and construction of barriers shall be in accordance with BS 6180.


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3. Handrails shall be attached to glass balustrades in such a manner that, should a glass pane

fracture, the handrail shall remain in position.

4. Occupancy class shall be Category C5 Public Assembly Areas Accommodation type with

appropriate UDL and point loads as stated in BS EN 1991: Part 1-1.

G. Slip Resistance

1. When tested using the Pendulum Tester (with both a 55 and a 96 slider), flooring, inclusive

of surface treatment, shall achieve the following pendulum test value (PTV):

a. Dry: Not less than 40 PTV.

b. Wet: Not less than 40 PTV.

2. When tested using the surface roughness meter, flooring shall achieve the following surface

roughness (Rz) value:

a. Not less than 20 µm Rz.

H. Specific Fire Performance Requirements

1. Refer to the Fire Consultant Report.

2. The firefighting stairs, all linings and other materials within the protected shaft shall be of

materials of limited combustibility.

I. General

1. The performance criteria shall be satisfied for the full design life of the works, as stated in the

Performance Specification, provided always that the maintenance has been carried out as

specified.

J. Impact and Abrasion Resistance

1. The works shall resist abrasion from agreed cleaning methods and maintenance systems

without any noticeable change in surface appearance. Generally, surfaces shall be

sufficiently hard (including glass coatings) to resist all reasonable impacts from hand-held

objects in accordance with BS EN 356.

2. Impact tests shall be carried out to all works adjacent to pedestrian areas in accordance with

the recommendations of BS 8200. Tests shall conform to category ***B*** requirements.

3. The extent of any damage determined through testing shall be recorded and, where

possible, quantified. Details shall be submitted to the Engineer.

4. Details of tests shall be provided to demonstrate the performance of materials and finishes inresisting abrasion from pedestrian traffic (hands, rings, luggage, cloth, shoes, etc.) and any

other abrasion resulting from adjacent traffic movements.

K. Demountability

1. Elements of the works shall be individually and independently removable ensuring access for

maintenance and/ or replacement of glazed and solid units in the event of breakage or

damage.

2. The removal of units shall not affect the performance or safety of adjacent or any other part

of the works.


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PART 2 - SYSTEMS, MATERIALS AND FABRICATION

2.1 SYSTEM DESCRIPTIONS

A. AM-302

1. Metal solid/ open grillage, with support framework

2. Provide metal secondary support framework, fixed back to primary structure.

3. Metal deck walkway, consisting of open grille flooring panels and solid infill panels where

indicated on the Design Drawings.

4. Finishes:

a. Metalwork shall be galvanised, refer to Section 050513 of the Performance

Specification.

B. AM-401

1. Cat ladder/ Ships ladder/ Metal ladder.

2. Manufacturer and reference shall be SureSpan/ SL Standard Access Ladder.

3. Material: Aluminium.

4. Ladder shall be designed in accordance with BS 5395: Part 3.

5. Ladder dimensions and configuration shall be as indicated on the Design Drawings.

6. Size 8 structural tube stringers.

7. Safegrip serrated rungs at 250mm centres.

8. Platforms shall be manufacturers standard aluminium open grid floor, with associated metal

balustrade..

9. Provide standard cage for ladders over 2.5m high, constructed from 50mm x 5mm flat hoops

set at a maximum 900mm centres with 6 no. Vertical straps with caged nuts.

10. Finish shall be Manufacturers polyester powder coated finish, to a colour as agreed with the

Engineer.

11. Fixing shall be in accordance with the manufacturers recommendations.

C. ASE-302

1. Travelling gantry/ ladder system and rails

2. ***To be further developed for SD issue.***

D. BAL-101

1. Metal vomitory handrail - Raked 2. Handrail shall be to BS 7818, BS 6180 and the 'Guide to Safety at Sports Grounds',

published by the Department of Culture, Media and Sport (DCMS).

3. Tubular stainless steel as Section 050500 of the Performance Specification, welded and

fabricated to form handrails as indicated on the Design Drawings, with welded end caps.

4. Raked profiles as indicated on the Design Drawings.

5. Stainless Steel: Grade 1.4401, with satin brushed 240 grit surface finish.

E. BAL-102

1. Metal vomitory handrail - Straight


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2. Handrail shall be to BS 7818, BS 6180 and the 'Guide to Safety at Sports Grounds',

published by the Department of Culture, Media and Sport (DCMS).

3. Tubular stainless steel as Section 050500 of the Performance Specification, welded and

fabricated to form handrails as indicated on the Design Drawings, with welded end caps.

4. Straight profiles as indicated on the Design Drawings.

5. Stainless Steel: Grade 1.4401, with satin brushed 240 grit surface finish.

F. BAL-103

1. Metal handrail fixed to wall

2. Provide stainless steel tubular handrail to follow stair flight profile as indicated on the Design

Drawings.

3. Form base plate as circular stainless steel, fixed back to wall by countersunk stainless steel

screws, with minimum 6mm diameter stainless steel rod and 90° between base plate and

handrail.

a. Rod shall be fixed to base plate by mechanical fixed at rear of base plate.

4. Finishes: Stainless steel shall be Grade 1.4404, with satin brushed 240 grit surface finish.

G. BAL-104

1. Metal balustrade fixed to stair flight and landings

2. Internal, purpose made stainless steel circular post balustrade and handrail system to

configurations and nominal dimensions indicated on the Design Drawings, comprising:

a. Circular stainless steel balusters of nominal dimensions indicated on the Design

Drawings.

b. Balusters shall be set at nominal centres indicated on the Design Drawings.

c. Balustrade shall be fixed to stair treads/ landings recesses to be covered by tread finish.

Support bracketry shall be of minimal profiles to maintain performance requirements

and be to the acceptance of the Engineer.

3. Horizontal and raking stainless steel rectangular flat bar top and bottom rails welded to

balusters. Rails shall be to nominal dimensions and heights indicated on the Design

Drawings.

4. Provide second handrail set out at dimensions indicated on the Design Drawings.

a. Second handrail shall be fixed to top of concrete wall via a 10mm thick stainless steel

base plate, with stainless steel standards welded to underside of handrail.

b. Base plate shall be fixed to concrete wall top with countersunk stainless steel screws.

5. Finishes:

a. Stainless steel shall be Grade 1.4404, with satin brushed 240 grit surface finish.

H. BAL-105

1. Metal tubular balustrade and handrail

2. Internal, purpose made stainless steel circular post balustrade and handrail system to

configurations and nominal dimensions indicated on the Design Drawings, comprising:


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a. Circular stainless steel balusters of nominal dimensions indicated on the Design

Drawings.


c. Balustrade shall be fixed to stair treads/ landings recesses to be covered by tread finish.

Support bracketry shall be of minimal profiles to maintain performance requirements

and be to the acceptance of the Engineer.

3. Finishes:

a. Stainless steel shall be Grade 1.4404, with satin brushed 240 grit surface finish.

I. BAL-106

1. Metal balustrades

2. Internal, purpose made metal post balustrade and handrail system to configurations and

nominal dimensions as indicated on the Design Drawings, comprising:

a. Rectangular-flat bar mild steel balusters of nominal dimensions indicated on the Design

Drawings.


c. Balustrade shall be bolt and bracket fixed to stair stringers/ steelwork beams as

indicated on the Design Drawings. Support brackets shall be of minimal profiles to

maintain performance requirements and the Engineer's design intent.

3. Horizontal and vertical mild steel rectangular-flat bar mild steel top and side rails welded to

balusters. Rails shall be set to suit nominal dimensions and heights indicated on the Design

Drawings.

4. Mild steel circular bar infill balusters welded to the top and bottom rails at maximum 100mm

centres. Rails shall be to nominal dimensions and heights indicated on the Design Drawings.

5. Nominal 50mm diameter painted mild steel handrail welded to mild steel rectangular-flat bar

section bracket, welded to baluster.

a. Handrail corners shall be mitred and welded to suit installation conditions.

b. Install handrails at heights indicated on the Design Drawings.

6. Finishes: Mild steel shall be galvanised and site painted to a colour agreed with the Engineer

through the sampling process.

J. BAL-107

1. Galvanised steel balustrade and handrail

2. Provide rectangular flat mild steel sections to form vertical standards at centres indicated on

the Design Drawings.

3. Flat mild steel standards shall be drilled for inclusion of tubular mild steel infill rails, with

jointed corners at stairflight changes in direction.

4. Vertical standards shall be welded to recessed base plates, set into stair treads and

concealed with the floor finish.

5. Finishes:

a. Mild steel shall be factory galvanised, refer to Section 050513 of the Performance

Specification.


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K. BAL-108

1. Structural glazed balustrade/ handrail

2. Internal, purpose made, clamp-fixed, cantilevered structural glass balustrade and stainlesssteel handrail system to configurations and nominal dimensions indicated on the Design

Drawings, comprising:

a. Clear structural safety glass balustrade panels of dimensions indicated on the Design

Drawings, refer to Section 088000 of the Performance Specification.

1). Panel to panel joints shall be butt jointed.

2). Glass edges shall be polished and to profiles agreed with the Engineer.

3). Glass thickness shall maintain performance and visual requirements and be

agreed with the Engineer.

3. A slab edge fixed bracket/ channel to receive the glass bal

division 05 - metals

Documents