Trapped moisture causing rot in old rafters
Why it happens here
The Colne Valley holds humidity, and foam sprayed directly onto roof timbers stops moisture escaping. Slaithwaite's stone terraces are especially vulnerable because their roof voids are often poorly ventilated to begin with.
Our approach
We check moisture levels with a thermal imaging camera before and after removal, treat any early rot, and restore airflow so the roof space can dry out properly.