In September 2026 our team removed 40m² of open cell spray foam from a loft in Burnley, Lancashire. The house was being sold and had been surveyed. The foam had been sprayed onto cardboard stapled to the rafters, so we took all of it off, back to the bitumen felt, and sanded the rafters down. The work took 1 day.
The owner was selling the house and a survey had picked up open cell spray foam in the loft. When we surveyed it, we found the foam had not been sprayed straight onto the roof. It had been sprayed onto sheets of cardboard stapled to the rafters, about 40m² in all.
Moisture readings in the loft came in at 11 to 12%. Many lenders and surveyors are cautious about spray foam because it hides the roof timbers, so they can't check their condition.
What we did
Removed 40m² of open cell spray foam, together with the cardboard it was sprayed onto
Took everything back to the bitumen felt
Sanded down the rafters
Left the timbers and felt on show so they can be inspected
The result
The loft was cleared in a day. The rafters and the bitumen felt behind them are back on show, as the photo above shows, ready for a surveyor to look at.
A check you can do yourself
Look at the edge of the foam near the loft hatch or the eaves. If you can see cardboard or board behind it, mention it when you ask for quotes. It changes how the foam comes off, and the surveyor will want to know.
Questions about this job
Can spray foam be removed if it was sprayed onto cardboard?
Yes. On this Burnley job the foam had been sprayed onto cardboard stapled to the rafters. We removed the foam and the cardboard together, back to the bitumen felt, and sanded the rafters down.
Why are lenders cautious about spray foam?
Many lenders and surveyors are cautious about spray foam because it can hide the roof timbers, so they can't check their condition. Removing it puts the timbers back on show.
How long did this job take?
40m² of open cell foam took our team 1 day.
Got something similar? Send us a photo and we'll tell you what we see.