Roof timber rot behind spray foam
Why it happens here
Foam applied directly to roof felt seals the roof and blocks ventilation. In Hendford's older terraces, moisture from cooking and washing has nowhere to go, so it condenses on the rafters and stays there. Rot follows within a few years.
Our approach
We remove the foam, check every rafter with a moisture meter, and treat any early rot before it spreads. We then reinstate a vapour barrier and ventilation path so the roof can breathe again.