by Chris Scivyer (13-Jan-2015)
The overall aim of this Good Building Guide is to give practical advice and guidance on the successful installation of radon-protective measures in new domestic extensions and conservatories with solid concrete ground floors. The guide will also help house owners and builders in radon-affected areas to assess whether protection is needed for a new extension or conservatory and to determine the level of protection that is required. It should be read in conjunction with BRE Report BR 211, Radon: guidance on protective measures for new buildings. This Good Building Guide replaces the guidance published in 2008. Two companion Good Building Guides cover radon-protective measures for new dwellings and new large buildings (eg workplaces).
What is radon and why consider it for new extensions?
UK building regulations
Determining whether radon protection is needed
-What do the maps or PHE/BGS radon risk report tell you?
Protective measures-Basic radon protection
-Full radon protection
-Opening from the house into the extension
High water table
Fill and blinding
Maintaining ventilation to existing suspended ground floors
Subfloor depressurisation and sumps
-How sumps work
-Fan locationMonitoring of completed extensions and conservatories
A4, 8pp, 14 drawings, 2 photos