29 Jan '13, 3pm

Would this insulation method work? #green

I notice all the pictures of exterior rigid foam is overhanging the concrete foundation by the thickness of the foam. Is there any reason why it can not be installed flush with the concrete foundation,(the area where the bricks would normally go) and to just have the 1x4 strapping and siding overhang the foundation wall? This way if you used metal flashing and insect screen it could be caulked right to the concrete foundation. Also I read many posts you can only have foam insulation on 1 side of the wall .What if you have 4" of exterior insulation, omit the osb sheathing (brace the walls with other approved methods) then flash & batt the 2x6 wall. This way would go a long way for air sealing the walls also.

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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