Brickwork
Revision AA - 01.07.2024
Updated to clarify that an ARC TCB Square cavity barrier must be fixed to the timber frame panel.
Changes have been made to note that bricks stacked at build locations should be covered with appropriate protection and that walls must be protected until mortar has set to resist frost damage.
Waste requirements have been updated.
Carpentry
Revision AF - 01.07.2024
Updated to give instructions around the correct installation of fire doors, including relevant QA checks and qualifications for installers.
Instructions have been added for the Contractor to construct a timber platform for the CoolBox 50 ACM Fan in both traditional and room in roof house types.
Minor change to install all cavity barriers as shown on Group Standard Details.
Waste requirements have been updated.
Carpet Floor Covering
Revision B - 01.07.2018
Group carpet ranges added to Specification.
Cavity Wall Insulation
Revision B - 01.07.2024
Energystore Ltd have been added as a Group Supplier for Superbead Cavity Wall Insulation.
Where a reflective vapour control layer is to be installed on the inside of the dwelling, the size of the timber batten is to be increased from 25mm to 38mm in specific locations to accommodate services as shown by working drawings.
Waste requirements have been updated.
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.
Cleaning
Revision K - 01.07.2018
Wording to match tick schedule aligned and general update of Health & Safety.
Demolition
Revision K - 01.08.2022
General section item h) Drug/Alcohol Testing added - the company reserves the right to test any persons on our sites for alcohol and drugs. Anyone who refuses to participate in any sampling being undertaken on site, will be asked to leave the site immediately and prohibited from working on any of the company's sites until non-negative tests have been provided.
The contractor must have an appropriate policy in place and have a programme of sampling of their workforce. From the 1 January 2023, 25% of the contractors' workforce on the company's sites must be randomly tested every 6 months. The contractor is to make reference to SHE Form 09 for policy on those individuals who provide non-negative samples.
Drylining Coving Screed
Revision AL - 01.07.2024
Contact details for SIG and CCF have been updated.
Waste requirements have been updated.
Electrical
Rev AT - 01.07.2024
The trade specification Governing documents section has been updated to ensure the contractor fully complies with the latest IET Regulations, Building Regulations, British Standards and third-party certification.
Following Technical Alert 65, a section regarding works for Smart Cylinders has been added, including RJ45 port requirements.
A requirement has been added that all ducting bends must be formed using rigid ducting.
Clarification has been added regarding extractor air flow testing requirements.
Smoke Detectors section has been updated to include that any systems must meet minimum required standards.
Specific drawing references have been removed from Subsection 21.3 which relates to sockets for Integrated Dishwashers.
Solar PV has been updated to note that DC cabling from the PV array to the plot's inverter should be provided with amounts coiled at each end for connection by the Solar PV Contractor.
An additional section, Emergency Lighting to Communal Areas, has been added. This includes the requirement of certification to be submitted by the contractor including details of the photometric data, in accordance with BS 5266-1.
Waste requirements have been updated.
Electrical Downlighter Installation
Barratt / David Wilson Homes Standard Drawing DB-SD09-003
Fencing
Revision N - 01.01.2024
Section 13 Timber Surveys has been added to require the Contractor to provide annualised returns of FCS/PEFC within 14 days of request by the relevant operating Division by accurately completing and returning the standard form.
A new waste removal section has been added for the removal of waste from around the plot to the segregation area.
Fire Proofing
Revision C - 01.07.2024
Distribution details have been updated from SIG Trading to FP Herting & Son PLC for Fire and Acoustic Seal products.
Contact details have been updated for SIG Fire Protection Manager.
Manufacturers Products updated to instruct contractor to check compatibility of products used to seal service pipes.
Approved products for sealing gaps between fire door frame and supporting structure has been updated to remove Rockwool Acoustic Intumescent Sealant and add in Fire and Acoustic Seals products from FP Herting & Son PLC. This has been updated in section 4 and section 15.
Hyperlink for Hilti product CFS-CID Firestop cast-in device has been updated to the correct website for the product.
The requirement for the Contractor to complete quality assurance checks using the Company's IT system has been added.
Waste requirements have been updated.
Glass Balustrades
Revision D - 01.07.2024
Waste requirements have been updated.
Landscaping
Revision L 01.07.2024
Waste requirements have been updated.
Loft Insulation
Revision P - 01.07.2024
Waste requirements have been updated.
Mastic
Revision R - 01.07.2024
The requirement for Everbuild 825 silicone sealant mastic on Everbuild joint backer rod at eaves between soffit and top of facing brick on Timber Frame has been added.
The schedule of materials has been updated to include for Everbuild Tecnic Joint Backer Rod for External Mastic.
Waste requirements have been updated.
Plot Groundworks
Revision AB 01.07.2024
Defective workmanship e) has been updated to instruct the contractor to carry out quality assurance checks of their own work including providing evidence to the Company for review. The specification also includes for the contractor to use the Company's IT system to complete and record appropriate QA checks including specific records as noted.
Section 3 has been updated to remove the reference to 3.6N and detailed working drawings.
The requirement for a concrete foundation and decorative stone for the install of ASHPs has been added.
Section 9 has been fully updated to include for the contractor's responsibilities when designing and constructing retaining walls.
Subsection 11.6 has been updated to clarify that the construction method for ground floor slab will be confirmed in the tender enquiry.
Subsection 13.16 has added the note that all plant utilised on site shall be compliant with Non-Road Mobile Machinery regulations, and any other air quality requirements that may be enforced locally.
Plumbing and Heating
Rev AV - 01.07.2024
The Group Suppliers section has been amended to clarify that standard cylinders are provided by Kingspan and Smart cylinders are by Mixenergy. Address details have been updated for Recoup Energy Solution Ltd and added for the ASHP providers Mitsubishi, Daikin and Valiant.
Healthy and Safety i) has been updated to note that ASHP contractors must be MCS certified or all installers have completed Level 3 (BPEC or LCL) qualifications including any specific manufacturer courses and provide evidence of these qualifications.
Additional wording has been added to the Subcontractor m) section to note that the Electrical Contractor must connect a Cat6 Ethernet cable from the cylinder cupboard to the RJ45 socket in the location of the Optical Network Terminator (ONT).
Instructions have been added to Section 2 Boiler and Flue to review the kitchen and utility room layout drawings prior to first fix to ensure the boiler is positioned suitably within the boiler housing.
Section 3 Air Source Heat Pumps has been fully updated including delivery, installation requirements and insulation to pipework.
An amendment has been made to clarify the requirements for chasing pipework on blockwork walls where a door frame is present on that wall.
The requirement to leave copies of certificates in the site office has been changed to providing them to the Site Manager.
The section on Solar Panel installation and commissioning has been removed.
The requirement for commissioning the first 3 ASHP units and then every 1 in 10 units has been added.
The section on Smart Cylinders has been updated to note that the contractor must connect the smart cylinder to the relevant data point.
Pre-Cast Concrete Floors
Revision - 01.01.2018
Pre-Cast Hollowcore Concrete Plank Floor trade specification.
Render
Revision I - 01.07.2024
Waste requirements have been updated.
Roads & Sewers Stage 2
Revision N - 01.07.2024
Subsection 10.16 has added the note that all plant utilised on site shall be compliant with Non-Road Mobile Machinery regulations, and any other air quality requirements that may be enforced locally.
Subsection 10.20 Dealing with Spills has been amended from gully bags to re-usable silt traps.
Roads & Sewers to Binder Course inc. stage 2
Revision S - 01.07.2024
Subsection 10.16 has added the note that all plant utilised on site shall be compliant with Non-Road Mobile Machinery regulations, and any other air quality requirements that may be enforced locally.
Subsection 11.2 wording has been amended to remove the reference to gully pots filled with straw and include the contractor supplying and installing a proprietary re-usable silt trap system.
Roof Tiling
Revision AF 01.07.2024
The tile batten fixing specification of subsection 3.4 has been updated to include for a site-specific batten calculation being undertaken by the contractor.
Solar PV section has been updated to note that where panels are being installed, the Roof Tiler must liaise with the PV Solar Panel installer.
Waste requirements have been updated.
Scaffolding
Revision U - 01.01.2023
The previous 'change applicable from' date has been removed.
Solar PV
Revision B - 01.07.2024
Section L) subcontractors has been updated to confirm the responsibilities of the Carpentry and Roof Tiling contractor when Solar Panels are being installed.
The requirement to submit photographic evidence of the PV array and inverter to include in the plot's photographic evidence report has been added to the specification.
Waste requirements have been updated.
Special Projects Concrete Works
Revision H - 01.08.2022
Section 16.33 item added – the company reserves the right to test any persons on our sites for alcohol and drugs. Anyone who refuses to participate in any sampling being undertaken on site, will be asked to leave the site immediately and prohibited from working on any of the company's sites until non-negative tests have been provided.
The contractor must have an appropriate policy in place and have a programme of sampling of their workforce. From the 1 January 2023, 25% of the contractors' workforce on the company's sites must be randomly tested every 6 months. The contractor is to make reference to SHE Form 09 for policy on those individuals who provide non-negative samples.
Vinyl Tile, Sheet & Laminated Flooring
Revision I - 01.07.2018
Minor notes under section 4 added regarding floor types used within the group.
Wall Tiling
Revision J - 01.07.2024
Group supplier has been updated to remove references to Norcros Adhesives Ltd and replace with Palace Chemicals Ltd.
Waste requirements have been updated.
Window Installation
Revision I - 01.07.2024
Contact information has been updated for Group suppliers including Eurocell, Munster Joinery and Cavalok. Liniar has been added as a Group supplier while UK Windows Group and Duraflex have been removed.
Section 1.5 has been removed due to updates to the waste amendments.
Waste requirements have been updated.