Quote:
Originally posted by NaughtyAlysha
A quick Google search says:
For 2x4 construction, you will need R12 insulation. For 2x6 construction use R20 or the new building code standard R22.
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Ya, but I need to know if there is any possible way to squeeze R20 out of a 2X4 wall. Like with rigid foam or something. I know the normal fiberglass batts won't give me R20 in that thickness.