Closed cell foam bonded hard to roof timbers
Why it happens here
Closed cell foam sets rigid and bonds to whatever it touches, which is why it was popular as an insulation. On Grange's older roofs it locks moisture into the timbers and hides damage, and lenders treat it as a serious risk.
Our approach
We cut it out with a reciprocating saw and oscillating multi-tool rather than trying to scrape it, then vacuum the timbers clean. We check every rafter for rot as we go and photograph the finished loft for your lender.