[QUOTE=Xringer;23487]
I wonder if you have siding on the house?
QUOTE]
Its T1-11 wood siding. The walls are carrying lots of heat through them and radiating it into the house. I am seriously thinking of having the walls filled with the spray foam, but then again, how much heat transfer will the wood studs pickup and transfer?
I have thought of installing a thin wall on the interior of the house to seperate the two, but it would sure be nice to know that the heat/cold is staying put on the exterior.
If spray foam is installed in the exterior walls, then you shouldn't have to worry about moisture building up in the walls, right? Then why not install a waterproof butyl rubber membrane wall sheeting on the exterior?
I know that in cold climates, covering an entire wall section with waterproof membrane will create a cold-side vapor barrier, potentially leading to serious moisture problems and wood decay within the wall cavity. But with the spray foam in place, what would happen? Would the wood still rot from vapor issues?
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