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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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Section 050513 Table of Contents
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
1.1 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 paints and coatings, indicating VOC content.
2. Laboratory Test Reports: For paints and coatings, indicating compliance with requirements
for low emitting materials.
B. Sustainable GSAS Requirements
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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Section 050523 Table of Contents
SECTION 050523 METAL FASTENINGS 2
PART 1 - MATERIALS/ PRODUCTS AND FABRICATION 2
PART 2 - SITE INSTALLATION 4
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SECTION 050523 METAL FASTENINGS
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 adhesives, indicating VOC content.
2. Laboratory Test Reports: For sealants, indicating compliance with requirements for low-
emitting materials.
B. Sustainable GSAS Requirements
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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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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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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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
PART 3 - SITE INSTALLATION 1
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SECTION 057000 DECORATIVE METAL
PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE
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 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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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
Performance Specification.
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
1. Product Data: For recycled content, indicating recycled content and cost.
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.
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.
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
materials, or both, as needed to provide flat visible surfaces, with no surface defects.
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
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. 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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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
PART 3 - SITE INSTALLATION 15
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SECTION 057800 METAL STAIRS/ RAILINGS/ HANDRAILS
PART 1 - SCOPE, SUBMITTALS, TESTING AND PERFORMANCE
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 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. 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
Performance Specification.
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
1. Product Data: For recycled content, indicating recycled content and cost.
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
Performance Specification.
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.
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, 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.
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.
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.
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. 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.
b. Balusters shall be set at nominal centres 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
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