What would you do?
I’m building a house in climate zone 5. I’ve got a little problem w/ the insulation. I’ve got all the windows and electrical meter box furred out 1.5” for R-7.5 foam (2×6 walls), which is the code minimum and could lead to some moisture accumulation on the interior side of the sheeting. I was thinking of furring the windows out another 0.75” and using 2.25” eps foam. A local manufacturer produces eps foam to order. My contractor thinks I’m crazy for increasing the foam. So my question is, should go with the 1.5” or 2.25”.
The other little problem I have is shown in the picture. The window adjacent to the sunroom is on the north west side on the house. I have some concerns w/ the window so close to the roof edge. Is there any benefit to placing the foam on the inside of the wall?
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