Diagram 11.3 Notional boundary

Department for Communities and Local Government, (2019) Diagram 11.3 Notional boundary. [Image]

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Abstract

NOTES:
The notional boundary should be set in the area between the two buildings using the following rules:
1. The notional boundary is assumed to exist in the space between the buildings and is positioned so that one of the buildings would comply with the provisions for space separation having regard to the amount of its unprotected area. In practice, if one of the buildings is existing, the position of the boundary will be set by the space separation factors for that building.
2. The siting of the new building, or the second building if both are new, can then be checked to see that it also complies, using the notional boundary as the relevant boundary for the second building.
Notional boundary
Site boundary
Compliance with the provisions for space separation in respect of building A
Compliance with the provisions for space separation in respect of building B
See para 11.5

Item Type: Image
Additional Information: mml-maui-text-analytics-keywords
Uncontrolled Keywords: relevant boundary, notional boundary, unprotected area, boundary, boundary, site, building control body, building and land associated with the building, b4 external fire spread, final certificate
Subjects: T Technology > TH Building construction > Building standards > fire safety - volume 1: dwellings. 2019 edition - for use in england > Section 11: Resisting fire spread from one building to another
K Law > The Building Regulations 2010 > B4: External fire spread
T Technology > TH Building construction > Building standards
Date Deposited: 14 Mar 2020 09:45
Last Modified: 13 Oct 2021 19:41
URI: https://eprints.buildvoc.co.uk/id/eprint/936

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