Exterior Insulation Is Like A Sweater For Your House

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A layer of rigid foam will keep your wall sheathing warm and dry

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[](http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/exterior-insulation-sweater-your-house)

There are many construction and insulation approaches which allow a builder to create walls and ceilings with high R-values and low levels of air leakage, creating a much better envelope than is achieved with standard framing methods. Structural insulated panels (SIPs), insulated concrete forms (ICFs), double-stud walls, and advanced framingHouse-framing techniques in which lumber use is optimized, saving material and improving the energy performance of the building envelope. can all produce more energy-efficient buildings than the ol' stick-built number.

The one thing they can't do is to improve the efficiency of an existing house.

URL: http://www.greenbuildingadvisor.com/blogs/dept/guest-blogs/exterior-insulation-sweater-your-house