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, 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.
Senior Group Commercial Manager
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.
Revision T - 01.07.2017
Added note 4.5 any slight gaps around fire doors should be filled with a mineral wool or intumescent mastic & 20.2 Special attention must be drawn to fire doors in protected stairwells, which require all gaps to the frame to be filled with a mineral wool or intumescent mastic.
Revision S - 01.07.2016
Minor amendments have been made to the reference to CSCS cards within the Health & Safety section.
Within the Subcontractor section, a new requirement has been added, "The Carpentry Contractor is to provide timber support fillets in preparation for the Roof Tiling Contractor to supply and install eaves support trays."
"Tilting fillets" have also been to the inclusions list within the Quotation section under the Main Roof subsection.
Within Section 8, First Fix, 8.5 has been updated for stud partitions walls formed using 65x38mm softwood studs. Where 600mm studs are specified, "…with mid-supporting rail." has been added. Additionally, "Partition walls, formed around wet-rooms, are to be constructed using 65x38mm softwood at 400mm centres without mid-supporting rail."
A new subsection 10.5 has been added, noting that, "Window boards should be fitted to project a minimum of 25mm to a maximum 35mm from the finished wall."
Within section13 Ironmongery a new subsection has been added as follows…
"13.1 The Carpentry Contractor must install all door furniture strictly in accordance with the manufacturers fitting instructions."
"(i) Bolt fixings that are supplied with the rose furniture in the back-plate, must be installed through the door, to the rose on the opposing side, to prevent handles becoming loose over time."
"(ii) All supplied fixing screws must be fitted to affix the rose furniture to the door."
Subsection 19.7 has been expanded to note fixing of spandrel panels "…except where room-in-the-roof is supplied and installed by others. The Carpenter is to remove the lifting straps once the Spandrel Panel has been fixed into position. Any protective polythene sheeting is to be left in place whilst the roof is exposed to the inclement weather; but must be removed once the roof is water tight and prior to the ceilings being plaster boarded".
Subsection 19.12 has been amended to note that the Carpentry Contractor is responsible for fixing the tilting fillets to support the rafter support tray (by the Roof Tiling Contractor).
- Fire Protection (PDF, 627 Kb)
Barratt / David Wilson Homes Standard Drawing DB-SD09-19