Fastening Rigid Foam to Cinder-Block Foundation Walls
I am in Ohio and I am finishing a basement in a house built in 1930. Is it OK if rigid foam board is loosely held against the cinder block walls by the wall framing without adhesive? It is taped and sealed. Or is it required that the foam board be fastened to the block wall with Tapcons or something similar. The framing is already up so I would rather not remove it. Thanks.
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