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Tried spray foam in a wall cavity and got a nasty surprise
I sprayed expanding foam into a gap around a window frame in my 1940s house in Philly and it blew the drywall off the wall. Turns out I used the wrong type for that gap size and it expanded way more than expected. Has anyone else had an insulation project go sideways like that?
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kaiharris24d ago
Close but not quite on the door thing. Expanding foam can definitely blow stuff out but taking a door right off its hinges usually means the frame itself got pushed out of square. More likely your cousin used the wrong foam on a door frame and it bowed the whole thing inward so the door wouldn't close anymore. That's actually a common mistake with the high-expansion stuff around doors and windows. Gotta use the low-expansion window and door foam for those spots or you'll be fixing framing instead of insulation.
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