Diagram 12.1 Limitations on spacing and size of plastic rooflights that have a class D-s3, d2 or TP(b) lower surface

Department for Communities and Local Government, (2019) Diagram 12.1 Limitations on spacing and size of plastic rooflights that have a class D-s3, d2 or TP(b) lower surface. [Image]

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Abstract

NOTES:
1.There are restrictions on the use of plastic rooflights in the guidance to requirement B2 in Section 4.
2.Surrounding roof covering to be a material of class A2-s3, d3 or better for at least 3m distance.
3.Where Diagram 5.2a or 5.2b applies, rooflights should be at least 1500mm from the compartment wall.
See paras 12.5 and 12.6

Item Type: Image
Additional Information: mml-maui-text-analytics-keywords
Uncontrolled Keywords: rooflight, unprotected area, fluepipe, should
Subjects: Section 12: Resisting fire spread over roof coverings
B4: External fire spread
Building standards
Date Deposited: 14 Mar 2020 09:48
Last Modified: 29 Sep 2022 21:01
URI: https://buildvoc.co.uk/id/eprint/943

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