Publisher's Synopsis
Buildings are often constructed on sites where volatile organic compounds (VOCs) such as benzene, toluene, chlorinated solvents, ethers etc are in the ground. The usual remedial solution is to provide a gas membrane under or over the floor slab, of the same type as used to prevent methane and carbon dioxide migration into buildings. The purpose of this guide is to provide a summary of the functions of a vapour membrane and the factors that may affect the performance of the membrane in a protection system for a building on land contaminated by VOCs.