Trade Specifications

The following Trade Specifications must be read in conjunction with all other Contract documentation including; Tender Letter, General Terms, Conditions of Contract for Works, Labour Only and Purchase Orders, General Construction Notes (England & Wales), Suppliers and Sub Contract Works – Customer Charter and the Company's Occupational Safety, Health & Environmental Management System.

Our aim is to enable our sub-contractors and suppliers to access key Commercial information such as Terms & Conditions and Trade Specification etc online as soon as they are updated and revised. We hope that this will ensure that our supply chain is always fully informed as quickly as possible.

Whilst available online, this information is also available from the Commercial Departments at our Divisional offices and will form part of any contract we place ( as set out in the Order ).

Please be aware that bogus web sites seeking fees for the chance of working with major contractors exist please refer to the Home page for information on how to report details of these to us.

Jon Hayward
Senior Group Commercial Manager


Revision U 20.09.2019

Section 2 has been renumbered to Section 1 Brickwork Rates, correcting the reference number against the previous section External Wall Construction. A renumbering of the following Sections of the specification has occurred

Expansion Joints, where applicable, are to be installed in accordance with the NHBC Standards.

Updated sections 1.1.10 / 6.1.5 / 6.2.1 / 6.2.2 / 6.2.3 and 9.2.3 to reference installation of all ARC cavity fire barriers and ARC party wall DPC barriers in accordance with Group Standard Details.

Deletion of Section 7.2 Brickwork Constructed to 2006 Building Regulations, as these specification notes should no longer be required.

Section 7 Integral Garages, the words "When build in masonry construction…" have been added.

Deletion of Section 10.2.1 Thermal Economics Ltd Alreflex 2L2 fixing instructions. Renumbering of Section 10.2.2 to 9.2.1 Thermal Economics Alreflex Platinum insulation board fixing instructions.

Revision T 01.07.2018

General update to the Health & Safety section and inclusion of swift brick installation instructions.

Revision S 01.01.2018

We have now incorporated additional wording with regards to cast stone & pre-cast concrete floors.

Revision R 01.07.2017

Formatting changes only

Revision Q 01.07.2016

The trade specification has been updated in the following sections:

Section 6.3 has been amended to include 2013 Building Regulations.

A new subsection has been added within Health & Safety, 25.1 notes, "It is the Contractors responsibility to ensure that, whilst cutting bricks and blocks, his workforce and other workers in the vicinity of the brick cutting area are not exposed to silica dust arising from the cutting process. Where grinding tools are used in the cutting process, all operatives must wear a FFP3 disposable mask or half face respirator with at P3 filter. Additionally, all operatives must be face fit tested and records made available to site management."

Tags: Brickwork


Revision Y - 01.01.2020

Reference to fixing slatted shelving within airing cupboards removed from Second Fix Sections 1.1(v) and 21.6.

Revision X - 20.09.2019

Updated sections 1.1(ii) and 19.7 to reference installation of ARC Fire Stopping products.

Revision W - 01.01.2019

Minor changes have been made to BDW Method Statement reference for bracing to room-in-the-roof house types.

Revision V - 01.07.2018

No major changes very minor formatting and wording within main roof section.

Revision U -01.01.2018

19.8 has been update by the SHE managers and an updated hyperlink replaced.

Tags: Carpentry

Ceramic Floor Tiling

Revision H 01.01.2019

Health and Safety information has been updated and company brand information has been updated in-line with our current sales literature.

Revision G 01.11.2013

The general format of the Trade Specification has been updated to be in-line with recent updates to other Trade Specifications. However, the main changes to the specification are within section 4.6, noted as follows, "The Contractor is to leave a minimum of 1m2 of spare tiles, from the same batch of tiles that have been used in the floor tiling operation, in case of small area remedial works. The spare tiles are to be left in an accessible area near to the location of the tiled floor area, i.e. where works are completed to the kitchen area these may be left behind the kitchen unit pelmet."


Revision K 01.07.2018

Wording to match tick schedule aligned and general update of Health & Safety.

Revision J 01.07.2017

Formatting changes only.

Revision I 01.11.2015

The trade specification for Cleaning has been rewritten based on feedback received from Divisions and Contractors. It now contains a clear table of cleaning area requirements at the appropriate visit noted.

Additionally, the term Sparkle Clean is now to be referred to as Final Clean.

Tags: Cleaning


Revision J 01.07.2017

Items 8 & 9 have been amended, 8 The contractor must produce a Materials Management Plan in accordance with CL: AIRE Definition of Waste Industry Code of Practice (DoW CoP), which includes information about reducing waste to landfill. 9 A Qualified person must be nominated to issue the Declaration to the Environment Agency in accordance with the CL: AIRE DoW CoP and provide verification report upon completion.

In addition to the adjustments above, a Demolition waste summary report has been added for waste materials to be collated and will be required as part of the waste management yearly review.

Drylining Coving Screed

Revision AF 01.01.2020

Section 3 – Boxing and Inaccessible Areas – Minimum thickness of fibreglass quilt insulation added to 3.1.

All boxing and ducting to SVP's etc to be 2 layers of 12.5mm plasterboard and 3mm skim and packed with fibreglass quilt insulation. Minimum 25mm around soil pipes.

Revision AE 20.09.2019

General section k) and Section 7.11 External Walls - Ensure a neat plaster seal is applied to all flue chimneys passing through external walls sealing the flue chimney but maintaining the manufacturers seal installed by the Plumbing and Heating Contractor.

Revision AD 01.01.2019

Group Supplier information and contact details have been updated.

Revision AC 01.07.2018

Communication of trades added in specification Carpenter & SIG Roof space.

Revision AB 01.07.2017

Formatting changes only.

Revision AA 01.10.2016

Section 7.10 has been amended to reflect the instruction for external wall to have a metal frames walling system to be applicable to flat over garages, constructed with timber floors.


Revision AK 20.09.2019

Section 5.14 Broadband - Cat module and wiring changed to CAT6.

Section 15.8 Condensation Traps – Revised to include connection with the trap and drain fitted to the extraction fan.

Section 21.3 Fire Protection - Electrical sockets for Built in Ovens and Integrated Dishwashers must be installed in accordance with standard details.

Section 24.4 Television – Connection of Sky and Virgin Media Plates. Refer to the latest requirements detailed in the Sky and Virgin
pre-wiring specifications.

Section 27 Schedule of Materials – Door Entry Systems schedule updated in accordance with Comelit specification update. Deta Carbon Dioxide detectors reference has changed from 1141 to 1142.

Revision AJ 01.01.2019

This document has been subject to review due to the new I.E.T regulations 18th edition, which will be subject to for any new electrical installations designed (tendered) from the 1st of January 2019.

Removal of equipotential bonding requirements.

Group Supplier information has been updated for Door Entry Systems.

Material Schedules have been updated with revised product codes for Hagar consumer units. The Contractor to assess whether surge protection is required based on the plot's location in the country (using a lightning strike rate map) plus a rural and suburban / urban factor in accordance with I.E.T. regulations 18th edition.

Removal of door chimes / bells to all ranges from the material schedule.

Addition of Deta carbon dioxide detectors (Scotland only)

Revision AI 01.07.2018

Fire protection within the specification has been reviewed.

Section 20 has been newly added.

An update of smoke alarm product reference numbers have been amended.

Revision AH 01.01.2018

15.3 Rewording - Kitchen (Where no hood extract)

Fans in this location must be capable of giving extraction at a rate not less than 60 litres/second extraction, ducted to outside through sleeve, duct should be built in brickwork as work proceeds or 30l/s if the fan is placed over the hob.

15.4 Addition - Were the fan is ducted to a roof tile vent the EnviroVent condensation kit must be used, flexible ducting to be pulled taught and to be kept to a minimum as per the domestic ventilation compliance guide.

15.5 Addition - Were a utility fan is ducted to a roof tile vent the EnviroVent condensation kit must be used, flexible ducting to be pulled taught and to be kept to a minimum as per the domestic ventilation compliance guide.

15.8 New - All of the above equipment to be manufactured by Envirovent.

Schedule of materials updated accordingly 3 revised product numbers.

Revision AG 01.07.2017

Changes to product codes/names have changed.

Electrical Downlighter Installation

Barratt / David Wilson Homes Standard Drawing DB-SD09-003


Revision K 01.01.2020

1.7 All timber fencing should be FSC or PEFC chain of custody certified accreditation.

Revision J 20.09.2019

1.7 Contractors must purchase all timber via suppliers with FSC or PEFC chain of custody certification accreditation.

Revision I - 01.07.2018

General Health & Safety update and notes added for gravel boards where levels dictate use of.

Revision H - 01.07.2017

Addition of no. of bags of post concrete per fence type as per Remix post mix guide. This added notes 2.4, 3.5, 4.4, 5.4, 6.1,
7.7, 9.1, 10.2, 11.4 and 12.

Revision G - 01.07.2016

Section 1 Quotation Subsection 1.4 has been updated to include "Tanatone (Celbronzed or equivalent) pressure treated" timber.

New subsections 1.5 and 1.6 have been added as appropriate "Any timbers cut on site are to be resealed using Dulux Trade Exterior Woodstain" and "The Contractors attention is also drawn to the Company's Timber Sourcing Policy noting compliance with ethically and sustainably sourced timber."

Section 7 Closeboard has been amended to note panel widths of 2.7 to 3.0m with timber weather capping being fitted to all posts following feedback from a Divison. The depth that posts should be set in concrete in the ground has now been specified as 750mm.

Section 8 Gates has been updated to specify gates to be fitted to "1.8m x 100mm x 50mm timber wall plate" and "completed with a 'good quality' ironmongery, as approved by the Company, including galvanised Suffolk latch, galvanised Brenton padbolt, 200mm galvanised cabin hook for holding gate open to house wall or other timber post, including 900mm x 25 x 32mm gate stop fitted to post. Timber weather capping to be fitted to all timber posts." These requirements have been repeated for 900mm palisade gates on 1.0m posts.

Section 9 has been relabelled "Kick Rail" with a new section 10 added for "Post and Rail" added specifying 1.2m high fence.

Section 11 Pallisade has been simplified and naming added "Vertical Hit and Miss Fencing" noting only 75mm x 25mm spacings and 75mm x 50mm spacings. Again timber weather capping to posts has been added.

Subsection 13.4 has been removed in-line with the changes to the treatment noted in subsection 1.4.

Tags: Fencing

Fire Proofing

Revision A 01.10.2016

Contact references for the SIG Fire Protection Managers have been updated following recent appointments.

Glass Balustrades

Revision B - 01.01.2019

Changes to formatting, corporate branding and a Health and Safety section has been added.

Revision A - 01.07.2017

Formatting changes only.


Revision H 01.07.17

Formatting changes only.

Revision G 02.02.2015

Section 5.2 British Standard references have been updated.

Section14.3.1 Removal of the spot treatment "with Paraquat".

Loft Insulation

Revision M - 01.07.2017

Formatting changes only.

Revision K - 01.07.2016

Group Supplier information has been added specifying the supply details of Superglass Insulation Ltd. Distribution has also been added for the supply of insulation through SIG Interiors.

General section k has been amended to note the requirements for Contractors to check that Manthorpe G502 profiled ventilation roll is being installed. The requirements for the Electrician installing loft cone fire hoods have been removed as these are now specified as fire rated downlighters.

Section 3 Loft Insulation has been amended to reflect the type of insulation being Superglass Multi-Roll 44.


Revision P - 01.01.2019

Two tables have been added to the trade specification, where mastic is required to be applied, both internally and externally, to assist contractors with the requirements already noted. No additional areas of mastic have been added to the requirements.

Revision O - 01.01.2018

3.1 addition - Do not silicone around any Amtico installation for a minimum of 72 hours after installation to allow for flooring adhesive to fully set.

Revision N - 01.07.2017

Formatting changes only.

Revision K - 01.07.2016

Within section 1, Quotation, a new subsection has been added limiting the inclusion for fire proofing, "1.4 Fire proofing within this trade specification is limited to dwellings and flat above garage units. Where Fire Proofing is required to Apartments the Contractor must refer specifically to the Fire Proofing Trade Specification."

Section 2, Mastic, has been split into 2. External Mastic and 3. Internal Mastic. Within section 3, subsection 3.1 two new points have been added for mastic to be completed "(v) Around cavity closer prior to fitting the window frame. The joint between the cavity closer and blockwork to be sealed prior to dry lining." and "Around mechanical extract fans where passing through the wall."

Within subsection 3.1, point (vii) has been amended to remove internal garage personnel doors with this being added into a new subsection 3.2 "Garages, where there is an apartment / flat above, to be sealed with intumescent acoustic sealant as follows: (i) All perimeter ceiling plasterboard joints sealed with intumescent acoustic sealant. (ii) Internal garage personnel door frames."

A new section 4 has been added to note Schedule of Material to be used when undertaking mastic works, "The Contractor is to use only the following materials in the locations noted above unless expressly noted otherwise by the Company in the tender enquiry."

Tags: Mastic

Painting and Decorating

Revision V 20.09.2019

An amendment has been made to General item k) Outlining the Company's paint can recycling scheme.

Contractors are to clarify with the divisional office for the site, the paint colour used for Plastered Surfaces, where this is to be instructed regionally to be either Almond White or Brilliant White.

Revision U 01.01.2019

A minor amendment has been made to the colour specified under Plastered Surfaces.

Revision T 01.07.2018

Recycling section has had a Dulux web link added and wording within recycling amended and colour for walls have been amended.

Revision S 01.01.2018

3.6 Rewording - External work is not carried out in adverse weather conditions. No work shall be carried out below 5 degrees C. (solvent borne) or 8 degrees C. (water borne) or when the humidity exceeds 80%. All work shall be protected against frost.

4.2 additional wording - Where additional filling is required after the application of the mist coat this must be brought forward with a thinned coat of Dulux Trade Supermatt prior to the application of finishing coats. This reduces filler flash through.

Revision R 01.07.2017

Product codes/names have changed.

Revision Q 01.10.2016

Within the Preparation of Painting Surfaces, Section 4.1, the requirements for painting internal doors has been updated following
the changes to the Group Commodity Agreement for procurement of either primed finish doors or pre-finished doors; door treatment is to be advised by the Surveyor at tender stage to allow the appropriate allowance to be provided as part of the quotation.

Within section 4.2 Plastered Surfaces, the painting upgrade options for Gold and Diamond finish have been removed as is now one standard finish specified.

Plot Groundworks

Revision U 01.01.2020

General Item f) Group Suppliers. FP McCann added to the list for Precast Concrete L Retaining Wall System.

General Item g) Health & Safety. The Contractor's attention is drawn to the Safety, Health and Environmental section of this Plot Groundworks Trade Specification and the requirements noted.

Revision T 20.09.2019

Updated section 3.1 to reference installation of ARC Fire Stopping products.

Revision S 01.01.2019

Minor changes to this specification include fall protection to all foundation slabs with a risk greater than a 600mm fall.

Removal of patio areas within the trade specification.

Addition of Manthorpe telescopic vent to Section 11.15 for all block & beam, NuSpan and Jetfloor system foundations.

New Section 11.21 has been added to provide the requirements for scaffold bases.

Revision R 01.07.2018

Group supplier information amended.

Revision Q 01.01.2018

12 -12.5 Screed section from Drylining specification added as a crossover where screeds are completed by groundworker.

Revision P 01.07.2017

Formatting changes only.

Revision O 01.01.2017

Section 5, Drives, has been updated to note revisions to the construction specification. Subsection 5.2 now notes that drives are to be
constructed in two stages, up to and including binder course and a second visit to complete the surface course. Subsections 5.4 and 5.5 have been updated to reflect the revised construction specification for private and shared drives introducing 20mm Stone Mastic Asphalt in the surface course for private drives and 30mm for shared drives. Subsection 5.6 has been added to specify the minimum requirements to ensure drives drain away from buildings or be set a minimum distance from the building in accordance with NHBC guidelines. Subsection 5.7 has also been added to specify the detail for the demarkation of bays within multiple parking bays.

Section 8, Paths/Patios, has been amended to specify 32mm paving slabs as currently supplied in accordance with the Group commodity agreement with Marshalls.

Section 11, Substructure, has been amended to specify the quality of the topsoil to be imported where the Contractor is to provide allowances within the tender. Details have also been added to subsection 11.8 for cast-insitu suspended slab construction, compliant with 2013 Building Regulations. Subsection 11.9 details have been added for Timber Frame Construction, the requirements for trench block sizing for cast-insitu floor slabs and beam and block floor slabs has been noted. Additional notes have been added to instruct the Groundwork Contractor to use timber/metal sections as shuttering for the concrete and not splash brickwork with sacrificial insulation. Subsection 11.13 has also been updated to reflect the insulation requirements for Beam and Block Floor Construction, compliant with 2013 Building Regulations.

Plumbing and Heating

Revision AN 20.09.2019

Section 2.9 has been update to include the requirement that Boiler and Flue Chimneys must be sealed into walls using the manufacturers internal seal provided.

Section 20.5 Unvented Hot Water Cylinder – has been updated in line with Kingspan specification which now includes the fitting
of non-dynamic pressure reducing valves should the cold water mains kinetic pressure exceed 3.0bar.

Updated Section 23. Schedule of Materials – Heating Controls updated with latest product references and descriptions. Adey
Innovation Limited has been added to the list of Group Suppliers for cleaning and commissioning products.

Revision AM 01.01.2019

Minor changes to formatting, bullet numbering and supplier information.

Revision AL 01.01.2018

10.3 New – All gutter brackets to be installed at 600mm centres maximum.

18.5 New - The locations of rodding access points are to be provided at 3 storey intervals or less and above the spillover levels of appliances as per approved document H.

Revision AK 01.07.2017

Added to section f) All works to be carried out in accordance with water supply (water fittings) regulations 1999 section 73 (1) outlines the requirement of any property to prevent any system which causes or is likely to cause contamination from being connected to a water supply.

Item 2.9 amended. Boiler flues must not be sealed into walls, ceilings or floors with mastic, plaster or cement or any compound that hinders movement of the flue. The only instance that a flue is sealed is where a conventional boiler is connected to a concentric flue exiting a masonry wall to be sealed with a non-setting mastic.

Item 15.2 amended all ground floor radiators are to be fitted with a lock shield drain off radiator valve and/or Thermostatic/Wheel head valve as shown on the heating consultant design drawingsTRV's can be fitted vertically or horizontally depending on space issues encountered. All other radiators are to be fitted with a lock shield valve and/or Thermostatic/Wheel head valve, again as shown on the heating consultant design drawings.

Item 20.8 amended First fix soil stack test certificate, due to NHBC request.


Revision H 01.07.2017

Product codes/names have changed.

Revision G 01.07.2016

The General section formatting and notes have been updated to bring these in-line with all other specifications including, Clearing, Defective Workmanship, Health & Safety, Materials, Manufacturer's Products, Site Conditions and Subcontractor works. Group Supplier information has been added to reflect that of Saint Gobain Weber Limited.

Section 3 has been updated to reflect the materials and products for fixing as specified by Weber including dry-dash products and water repellent admixture.

A new section 4 has been added describing the Application of renders, specified by Weber.

Old section 4 Weather Constraints has been renumbered 5 with a subsection added 5.2 "Protection from unfavourable weather conditions should always be provided during application and early age curing". In addition, subsection 5.4 for hot weather application has been add to with notes, "Application should be avoided where temperatures exceed 30° Celsius".

Subsection 6.1 has been amended reflecting the application of render to the substrate, noting that, "The substrate must have a good mechanical key suitable for rendering." and where render is applied to smooth dense block that "Weber.rend ald must be used to provide an artificial key".

Tags: Render

Roads & Sewers to Binder Course inc. stage 2

Revision N - 01.01.2018

Roads & sewers to binder course inc. stage 2 (formally Roads & sewers to Binder course) – Rev N 01.01.18 & Roads
& Sewers stage 2 – Rev I 01.01.18

Revision M - 01.07.2017

Formatting changes only.

Roads & Sewers Stage 2

Revision I - 01.01.2018

The Roads & sewers stage 2 trade specification has been amalgamated into the Roads & Sewers to Binder Course inc. stage 2
trade spec. at this stage the documents have been updated separately if there are instances of stage 2 only contracts to be tendered or issued.

Revision H - 01.07.2017

Formatting changes only.

Roof Tiling

Revision Y 01.01.2020

Underlay – The previous reference to Protect A1 T3 HR roof underlay to be used in all timber frame units has been deleted. Refer to 2.1 for Underlay requirements.

11.2 Fire Stopping - Above Party Wall and Roof Membrane.

(i) Install 60mm thick layer of rock/stone mineral wall placed above party wall and roof membrane, to extend the full width of the spandrel below.

(ii) Laid between roof battens from eaves to ridge.

(iii) Ensure void above roof membrane is filled with rock/stone mineral wall to underside of tile profile.

(iv) Additional mineral may be required dependent on tile profile.

Above changes to 11.2 following the withdrawal of the ARC tile batten barrier.

Revision X 20.09.2019

Reference has now been made to the Company Timber Sourcing Policy; Contractors must purchase all timber via suppliers with FSC or PEFC chain of custody certification accreditation.

Section 2.2 - The Contractor is to ensure that protect A1 T3 type HR roof underlay is used for all Timber Frame construction units.

Fire Stopping section 11 updated to reference ARC products.

Revision W 01.07.2018

Four clause paragraphs have been reworded for clarity 3.13, 12.3, 17.5 and 18.5 in relation to the installation of roof light windows and baby/mini ridges.

Revision V 01.01.2018

Supplier information changed.

15.4 Rewording - Cut plain tiles are not acceptable. Purpose made plain tile-and-a-half or half tile must be used. Additionally, cut single lapped interlocking tiles must not be used unless unavoidable in which case cut tiles less than half the normal cover width must either be adhesively bonded to adjacent full tile using a suitable sealant or mechanically fixed to adjacent tile using a minimum of two fixings.

Revision U 01.07.2017

Formatting changes only.


Revision S 20.09.2019

Applicable for all Scaffolds erected from 1st October 2019.

Within section 11.6 Loading Bays. The use of bowstring transoms within loading bay structures is not permitted. Only loading bay transoms to be utilised.

Revision R 01.01.2019

The trade specification has been reviewed and updated following a review by the Group SHE Management team.

Scaffold Appendices are located HERE

Revision Q 01.07.2018

A full review of the Scaffolding trade specification has been completed and is required for all scaffold erected from the 1st September 2018.

Competency requirements have changed from OHSA 18001 to ISO 45001.

Health and safety requirements have been added to the General section.

A number of minor changes have been made with the specification paragraphs of "should" to "must".

A significant amount of rewording has been made with the remaining sections with a number renumbered and requirements added.

Appendices have been noted that refer to additional information contained on the Barratt Commercial Support website or appended to the trade specification.

Revision P 01.01.2018 a

5.2 The removal of table lifts exempt from having gates also appendix 10 section 18.

7.6 Rewording - Brick guards must be provided by the Contractor on all working lifts which are secured to the guardrails and their lateral movement prevented. They must be capable of supporting the weight of any materials liable to fall against them. This can be achieved by a proprietary guardrail/toeboard system if this is deemed appropriate. (Note: from 1 January 2016, these must be heavy duty plastic or plastic coated metal and self-securing).

9.2 Rewording - End caps must be fitted to the external facing transoms where the tube protrudes more than 50mm past the fitting & is below 2m from the walking surface. Where standards exceed 2m from the working platform, there is no requirement for end caps

Revision O 01.07.17

Alterations to this specification are as reviewed with recommendations from Vince Coyle.

1.14 It is the Contractor's responsibility to provide all tools/equipment as required. Any electrical tools/equipment brought onto site must be battery operated or 110v and have been appropriately tested/inspected. The operatives must have received the appropriate training for the tools/equipment being used and have relevant certification. The contractor must maintain a register of work equipment inspections as required by PUWER and evidence of training.

2.13 Designs which are required, and are not detailed within this specification will be specific to the site i.e. pedestrian walkways, protection fans etc. These must be approved prior to the commencement of work. The designs must be within TG20 design criteria or approved by an accredited designer.

5.1 has been re-worded

5.4 added Ladder safety rail to be installed on all externally positioned ladders.

5.6 amended Ladders must be adequately secured as per TG20 guidelines or with designed brackets, to prevent sideways and outwards movement, at the correct angle of 75° and extend 1m above any landing point. Transom clips are not permitted.

5.8 added Table lifts must be provided with self-closing gates as specified for external platform access points.

7.3 added Gable handrails to prevent falls from roofs where that distance exceeds 1.5m with a minimum roof height for roofer's access of 2.0m, the handrails from plan position are a minimum of 100 mm from the roof edge and a maximum of 225 mm. see appendix 11.

Note appendix 11 has been altered with the addition of the above including diagram and tables provided by Vince Coyle.

7.5 has been re-worded

8.8 amended The scaffold boards on the internal edge of the working platform must be secured to prevent them becoming dislodged at a minimum of two fittings must be provided as close as practicable at either end of the board.

8.9 added Where lapped boards on system scaffold occur, these must be secured with mechanical fixings.

9.2 amended End caps must also be fitted to the external facing scaffold transoms and to the top of internal standards where these protrude the working platform to avoid injury to persons coming into contact with them. Tubes must not protrude more than 50mm past the fitting on all scaffolds below 2m.

13.5 has been re-worded

19.4 added The designated Supervisor must provide a weekly SHE Inspection of the company's activity. This must include compliance with the current scaffold specification, as well as other SHE management elements identified in this specification. The weekly inspection must be presented to the company.

Vinyl Tile, Sheet & Laminated Flooring

Revision I 01.07.2018

Minor notes under section 4 added regarding floor types used within the group.

Revision H 01.01.2018

1.12 Rewording - All flooring is to be laid using Amtico or Moduleo approved adhesive and used in accordance with the manufacturer's instructions, specification and recommendations with suitable floor preparation for the above flooring systems.

1.13 Rewording - All edges of vinyl flooring are to be sealed to skirting and doorways in accordance with the manufacturer's instructions and specification. NO SILICONE SEALANT MAY BE USED FOR 72 HOURS AFTER FLOORING HAS BEEN INSTALLED TO ALLOW ADHESIVE TO FULLY SET.

2.1, 2.2 & 2.3 Addition of or other liquid sealer / primer, or other appropriate specialist & or similar.

2.1 Rewording - Areas OF 12m2 OR Over Must be fully adhered to the sub floor.

3.4 Rewording - Gaps between the skirting & floor finish must not exceed 3mm for vinyl sheet and for Laminate/wood, a minimum of 8mm (if installed before skirtings boards there would be no gap.

Revision G 01.07.2017

This spec has had a major update to include Amtico, Moduleo & quickstep floor coverings. Based on customer care issues, noise,
subcontractor feedback and fitting guides from manufacturers.

Wall Tiling

Revision I 01.07.2017

Formatting changes only.

Revision H 01.10.2016

Addition of 1m² of spare tiles to be left in the property, as noted in section 16.4

Window Installation

Revision E 01.01.2020

Section 15.6 – Ventilation.

Windows (not including Bays) and French Doors (not including Bays) are to have a standard outer frame and be fitted with a upvc overhead vent profile which houses the ventilators.

Bay Windows and Bay French Doors are to have a standard outer frame with a 25mm extension profile in which the ventilators are 'through frame' and NOT by means of an overhead vent profile.

Revision D 20.09.2019

A new section has been added 9.18 Glazing – Integral Georgian bar cruciforms must be fitted with ant-rattle keys / buffers (or equivalent).

Revision C 01.07.2018

Minor revision to the rewording of paragraph 9.12.

Revision B 01.01.18

Eurocell contact information changed. Cavalok contact added.

Revision A 01.05.17

Means of escape windows updated.

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