What type of foam do you use for insulation? A What type of foam do you use for insulation? We use standard closed cell foam, poured as thick as needed to attain the desired R-Value. We recommend Demilek HeatLok but do not know the local costs of the foam. You can inquire directly with Demilec HERE Back to Top julianm2020-08-21T17:36:33+00:00
