Wales Approved Document Part D: Toxic substances
Welcome to the technical guidance page for Part D of the building regulations (Wales).
This section contains guidance on toxic substances within buildings - in particular it deals with the injection of urea formaldehyde foam into cavity walls. The Approved Document D (Wales) can be downloaded below.
Wales Approved Document Part D: Toxic substances
1992 edition incorporating 2002 and 2010 amendments
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