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Free downloads of the latest technical policies and research from NHBC Building Control and NHBC Foundation.

Air flow measurement recording sheet

Air Flow Measurement (Fixed System 1 Fans only)


Combustible stairs in timber framed buildings

Approved Document B - Fire Safety; Volume 2, 5.19, recommends that single escape stairs in residential buildings over three storeys should be constructed of materials of limited combustibility.


Lift provision to new non-residential buildings

The guidance in the 2004 edition of Part M states that a lift is the most suitable form of access for people moving from one storey to another in buildings other than dwellings.


Testing of fixed axial fans

Regulation 42 of the Building Regulations 2010 requires builders to provide evidence of the testing of all fixed fans to the Building Control Body (BCB) within 5 days of the test being carried out.