I had spray foam sprayed in between rafters. Part of it ended up lower than I expected so they came back and filled in that and a few low spots. There was a low spot they missed in the corner of the roof, ended up with maybe 3 in instead of 5+ over a few square feet. Don’t think I want to call them back over that, I’ve had enough. Can I fill this in myself with a can of osi quad foam and a gun or is that just going to be a disaster? Does it even matter when I have rafters every 16 feet? Will it just melt the frost off faster on a cold morning?
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