Trapped moisture causing roof timber rot
Why it happens here
Shiphay's coastal humidity means roof spaces are naturally damp. Spray foam seals the timbers and stops them breathing, so moisture builds up and rot sets in. The problem is worse on north-facing roofs.
Our approach
We remove the foam, check every timber with a moisture meter, and treat any rot with a fungicidal wash. We also advise on ventilation to stop the problem returning.