Department for Communities and Local Government, (2019) Thatch and wood shingles. In: Approved Document B: Fire Safety - Volume 1: Dwellings. 2019 ed. Section 12: Resisting fire spread over roof coverings, 1 (12.9). RIBA Publishing Publication, London, p. 92. ISBN 9781859469156
Full text not available from this repository.Abstract
If the performance of thatch or wood shingles cannot be established, they should be regarded as having an EROOF(t4) classification in Table 12.1.
NOTE: Consideration can be given to thatched roofs being closer to the relevant boundary than shown in Table 12.1 if, for example, all of the following precautions (based on the LABC publication Thatched Buildings (the Dorset Model): New Properties and Extensions) are incorporated in the design.
a. The rafters are overdrawn with construction having not less than 30 minutes’ fire resistance.
b. The guidance given in Approved Document J is followed.
c. The smoke alarm installation (see Section 1) extends to the roof spaces.
| Item Type: | Book Section |
|---|---|
| Additional Information: | mml-maui-text-analytics-keywords |
| Uncontrolled Keywords: | relevant boundary, roof, dwelling type |
| Subjects: | Section 12: Resisting fire spread over roof coverings B4: External fire spread Building standards |
| Date Deposited: | 28 Feb 2020 21:18 |
| Last Modified: | 29 Sep 2022 21:03 |
| URI: | https://buildvoc.co.uk/id/eprint/758 |
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