Roof timber rot from trapped moisture
Why it happens here
Foam sprayed onto the underside of a roof deck seals the timber and stops it drying out. In Clifton's 1930s houses the rafters are soft to begin with, so rot sets in faster than it would in modern timber.
Our approach
We remove the foam, inspect every rafter, and treat any affected timber before we finish. You get photographs of the timbers so your surveyor can see the roof has been restored to a sound state.