Department for Communities and Local Government, (2019) Lighting diffusers. In: Approved Document B: Fire Safety - Volume 1: Dwellings. 2019 ed. Section 4: Wall and ceiling linings, 1 (4.16). RIBA Publishing Publication, London, p. 45. ISBN 9781859469156
Full text not available from this repository.Abstract
Diffusers constructed of thermoplastic material may be incorporated in ceilings to rooms and circulation spaces, but not to protected stairways, if both the following conditions are met.
a. Except for the upper surfaces of the thermoplastic panels, wall and ceiling surfaces exposed in the space above the suspended ceiling should comply with paragraph 4.1.
b. Diffusers should be classified as one of the following.
i. TP(a) rigid – no restrictions on their extent.
ii. TP(b) – limited in their extent (see Table 4.2 and Diagram 4.2).
Item Type: | Book Section |
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Additional Information: | mml-maui-text-analytics-keywords |
Uncontrolled Keywords: | thermoplastic material, ceiling, suspended ceiling, protected stairway |
Subjects: | Section 04: Wall and ceiling linings B2: Internal fire spread (linings) Building standards |
Date Deposited: | 15 Feb 2020 06:12 |
Last Modified: | 29 Sep 2022 21:02 |
URI: | https://buildvoc.co.uk/id/eprint/441 |