Which areas of my home should I insulate? Retrofitting your home with spray polyurethane foam may qualify you for energy efficiency tax credits, as well as Washington insulation rebates, especially if you are considering buying a new home that already includes this type of insulation. The tax credit specifically applies to improvements made to the building envelope, which encompasses attics, foundations, exterior walls, basements, and crawl spaces. According to the US Department of Energy, up to 45 percent of a home’s energy loss occurs through the attic, with actual heat loss varying based on your location and attic temperature. Homes in colder climates need higher insulation values; recommended attic insulation levels range from R19 in the southernmost parts of the US to R49 in the northernmost regions. Be sure to consult your local building authority for the recommended insulation levels in your area. Click through to calculate your potential tax credits, rebates, and savings for Washington.

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