Diagram 5.3 Cavity walls excluded from provisions for cavity barriers

Department for Communities and Local Government, (2019) Diagram 5.3 Cavity walls excluded from provisions for cavity barriers. [Image]

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Abstract

NOTES:
1. Materials used to close the cavity in this arrangement do not need to achieve a specific performance in relation to fire resistance.
2. Domestic meter cupboards may be installed provided that the following conditions are met:
a. There are no more than two cupboards per dwelling
b. The openings in the outer wall leaf are not bigger than 800X500mm for each cupboard
c. The inner leaf is not penetrated except by a sleeve not more than 80X80mm, which is fire-stopped.
3. Materials achieving class B-s3, d2 or worse may be placed within the cavity.
See para 5.18

Item Type: Image
Additional Information: mml-maui-text-analytics-keywords
Uncontrolled Keywords: fire-stop (Fire-stopping), unprotected area, cavity, room, cavity stop, non-combustible material, cavity barrier, prescriptive system, cavity width, outcomes-based system
Subjects: K Law > The Building Regulations 2010 > B3: Internal fire spread (structure)
T Technology > TH Building construction > Building standards > fire safety - volume 1: dwellings. 2019 edition - for use in england > Section 5: Internal fire spread – dwellinghouses
T Technology > TH Building construction > Building standards
Date Deposited: 14 Mar 2020 15:44
Last Modified: 13 Oct 2021 19:41
URI: https://eprints.buildvoc.co.uk/id/eprint/920

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