Trapped moisture and rot in roof timbers
Why it happens here
Many Combe Down roofs were built without modern ventilation. When foam is sprayed in, it seals the roof space and stops air moving. Moisture from the house rises into the loft and cannot escape, so it soaks into the timbers and the foam itself.
Our approach
We remove the foam completely, then check the timbers with a moisture meter. If rot is present, we treat it and leave the roof space ventilated. We also advise on simple ventilation improvements to stop the problem coming back.