Foam trapping moisture against rafters in riverside properties
Why it happens here
Properties close to the river Avon sit in higher ambient humidity, and foam sprayed across a roof deck seals that moisture in. Unlike higher ground, the void never fully dries, so rot sets in faster.
Our approach
We take moisture meter readings before and after removal, then leave the void open to ventilate until readings return to normal. We do not reinstate anything until the timber is dry.