Foam trapping condensation against roof felt
Why it happens here
Marina sits right on the coast, so humidity is high and wind-driven rain is common. Foam that seals a roof space stops it ventilating, and moisture condenses on the cold felt. Over time this leads to damp, mould and rot.
Our approach
We remove the foam and check the felt and timbers for damage. Where needed, we fit additional ventilation so the roof space can breathe again. This stops the problem returning after the foam is gone.