Materials and Workmanship
The cross-cutting Approved Document supporting Regulation 7 of the Building Regulations 2010. Requires that building work is carried out with adequate and proper materials (appropriate for the circumstances, adequately mixed or prepared, applied/used/fixed so as to perform the functions for which they are designed) and in a workmanlike manner. Applies to every other Approved Document: building control can refuse sign-off on workmanship grounds even when individual Part requirements are technically met. The restrictions on combustible materials in external walls (regulation 7(2)) are covered in Approved Document B Volume 2, requirement B4.
Also known as
Pages where AD 7 comes up
1 guide references AD 7, grouped by build phase.
Want the full picture?
The buildwiz build guides walk through a UK extension in sequence and link to AD 7 (and every other Approved Document) at the exact stage it bites. That is usually a more productive way to use this material than reading the document cover to cover.