Insulating Rim Joists with Rigid Foam
I am in the process of insulating my rim joist areas with rigid foam. I have placed 2 inch rigid foam between the joists and sealed the perimeter with Great Stuff spray foam. Now I am in the process of removing the excess foam around the perimeter, using PL 300 to glue a second 2 inch piece of rigid foam to the first piece and also sealing the perimeter with Great Stuff spray foam. I have become aware that when I placed the first 2 inches, there are places where the spray foam pushed out a portion of the rigid foam leaving a space between the rigid foam and the rim board. Is this something to be concerned about?
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