Radon and buildings: 3 Protecting new extensions and conservatories

Radon can enter a new extension or conservatory by a number of routes, with the result that radon levels may also increase inside the existing house. This leaflet describes how to minimise  the amount of radon entering the new building, and discusses the additional protective measures it may be necessary to install during its construction. It will be of interest to anyone involved in reducing indoor radon levels.