Junction of compartment wall with roof

Department for Communities and Local Government, (2019) Junction of compartment wall with roof. In: Approved Document B: Fire Safety - Volume 1: Dwellings. 2019 ed. Section 5: Internal fire spread – dwellinghouses, 1 (5.12). RIBA Publishing Publication, London, p. 52. ISBN 9781859469156

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Abstract

To reduce the risk of fire spreading over the roof from one compartment to another, a 1500mm wide zone of the roof, either side of the wall, should have a covering classified as BROOF(t4), on a substrate or deck of a material rated class A2-s3, d2 or better, as set out in Diagram 5.2a.
Thermoplastic rooflights that, because of paragraph 12.7, are regarded as having a BROOF(t4) classification are not suitable for use in that zone.

Item Type: Book Section
Additional Information: mml-maui-text-analytics-keywords
Uncontrolled Keywords: b4 external fire spread, unprotected area, fire compartment, compartment (fire), compartmentation, compartment wall or floor, compartment wall or floor, non-combustible material, external wall, tapered tread
Subjects: T Technology > TH Building construction > Building standards > fire safety - volume 1: dwellings. 2019 edition - for use in england > Section 5: Internal fire spread – dwellinghouses
K Law > The Building Regulations 2010 > B3: Internal fire spread (structure)
T Technology > TH Building construction > Building standards
Date Deposited: 15 Feb 2020 06:06
Last Modified: 13 Oct 2021 19:41
URI: https://eprints.buildvoc.co.uk/id/eprint/475

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