Good insulation in a home is key to keeping the temperature in the home at a desired comfort level and to reduce sound transmission between rooms. At Spectrum we use only R-49 with energy heels on our trusses in all of our attic spaces, and R-21 in all exterior 2 x 6 wall spaces to insure the best possible scenario for energy efficiency. For an added measure of convenience, we often use state of the art sound bat insulation and dense R-15 insulation in all walls that abut bedrooms, stairways, laundry rooms and bathrooms, so that independent audio activities can be used without interruption. Just another way that Spectrum Construction "has you covered".