Foam blocking the ventilation gap at the eaves
Why it happens here
Foam was sprayed right down to the wall plate in most Bratton lofts, sealing the gap that should let air move through the roof space. Without it, warm moist air from the house condenses on cold timbers.
Our approach
We remove the foam back to the wall plate and reinstate a clear airflow path along the full eaves line. Every Bratton loft is checked with a moisture meter before we sign it off.