Styrofoam vs fiberglass matt insulation
While I have my camper apart to do some structural repairs, I've been looking at its insulation. its basically 1" stryofoam sheets. My understanding is that the foam sheet isnt as susceptible to ...
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I agree with silversand. I wouldn't use spray foam, but I don't think anyone recommended using it.
....Gaetan suggested touching up the perimeter of the block foam panels (after inserting, you may not have an absolutely perfect fit, and spray foam is a good lock-in material)...
Just use a hand saw or a sharp knife.
...I use an 8-foot long aluminum level as a cutting edge (I score the 2 inch or 1 inch thick foam sheets about 3/4 ~ 1/2 of an inch deep, then I snap the board in 2 by bending it: bang !).
