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Insulation R Values Chart

Posted by Green Builder Staff

Jan 21, 2015 10:47:13 AM

This chart shows the approximate R-value per inch of various insulation products. Note, however, that not all product brands have exactly the same performance. More importantly, however, many methods of insulating lean heavily on what goes into the rest of the wall system to achieve good results. For example, blown-in fiberglass or cellulose can provide great results at a very reasonable cost, as long as plumbing and other penetrations are properly sealed, windows are caulked and sealed, and overall air infiltration is minimized with building wrap or (in the case of some types of rigid foam) carefully taped seams.


2016 Homeowners Handbook Green Builder

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