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Trade Specifications

tagged "Roof Tiling"

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.

Jon Hayward
Senior Group Commercial Manager

Roof Tiling

Revision Z 01.08.2020

h) Health and Safety

Leadwork section updated with deleted section from the Plumbing and Heating trade specification.

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.