Introduction

The following information is intended to introduce the key elements of Part D: Toxic Substances. Wherever possible the relevant document contents or sections are included with each set of regulations.

Use the link below for the full building regulations document.

• Note: All information is current as of January 2006, as is subject to change.

Cavity Insulation

If insulating material is inserted into a cavity in a cavity wall, reasonable precautions shall be taken to prevent the subsequent permeation of any toxic fumes from that material into any part of the building occupied by people.
Part D1. (1) Toxic Substances

Section 1: Urea Formaldehyde Foam

Further information and useful links

• Making structural changes to your property
• Full guide to the building regulations
• Damp proofing

• Find a Builder near you
• Find an Architect near you
• Find an Chartered Surveyor near you

• Building Regulations an explanatory booklet (odpm.gov.uk)
• Party Wall Guidance (rics.org)
• Impact of the Party Wall Act 1996 (odpm.gov.uk)