Part C
Building Regulations Part C
Site preparation and resistance to contaminants and moisture
Pages where Part C comes up
10 guides reference Part C, grouped by build phase.
Want the full picture?
The buildwiz build guides walk through a UK extension in sequence and link to Part C (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.