Insulated rim joist with exterior Zip R

Hi all,Looking for a sanity check on my rim joist insulation. Climate zone 6 (NH). Have zip R9 exterior, over an engineered rim joist with I-joist floor framing over my… Hi all,Looking for a sanity check on my rim joist insulation. Climate zone 6 (NH). Have zip R9...

Details on a rigid foam chainsaw retrofit

I am retrofitting a century old, uninsulated house with exterior rigid insulation. It is in zone 6a in northern MT.  The plan is to put 9 inches of polyiso foam… I am retrofitting a century old, uninsulated house with exterior rigid insulation. It is in zone 6a in...
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