Insulation Upgrade in 1010 Sq. Ft. Section of Attic in One Story Home in Fresno, CA

Dan contacted us because his cooling bills during the summer were extremely high. His air conditioner ran constantly to try to keep up with the heat, but during the Central Valley summers, it just wasn’t able to keep the home cool. When we inspected the attic, we discovered that a large portion was blocked off an inaccessible, and the portion that was accessible only had about 6 inches of insulation present. We also found a broken HVAC duct that was leaking air and many smaller ducts whose insulation had deteriorated and fallen off the ducts, leaving them exposed to the extreme attic heat. Dan decided that he wanted the insulation upgrade to an R38 level in order to help reduce his cooling costs and help his home stay cool during the summer. We also made the plan to replace the main HVAC duct and repair the smaller ducts using mastic.

We began the insulation upgrade by air-sealing visible leakage points using closed-cell foam. This is done to help keep air from traveling between the attic and the living spaces of the home. After that, we replaced the main HVAC duct and repaired the smaller ducts’ insulation using mastic. Lastly, we blew in premium, fiberglass insulation to an R38 level, or 13 inches of Knauf insulation.

Because of the insulation upgrade we performed, Dan and his wife will enjoy a cool, comfortable home during summer, a warmer home during winter, and reduced heating and cooling costs by up to 25-30% for as long as they remain in that house.