Correspondence
Circular letter regarding the application of requirement B4 of the Building Regulations 2010
This circular letter informs building control bodies about assessing compliance with requirement B4 of Schedule 1 to the Building Regulations 2010.
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This circular letter is to remind building control bodies of considerations relating to assessing compliance with requirement B4 of Schedule 1 to the Building Regulations 2010 with regard to fire spread over the external walls of a building and, in particular, the application of that requirement to low-rise buildings.