From R19 to R38: Attic Insulation Upgrade Using Blown-In Fiberglass in Fresno, CA

Nick contacted us because his Fresno home wasn’t holding a steady temperature, forcing his HVAC system to work overtime—especially during hot summer days and chilly winter nights. When we inspected the attic, we found that it only had R19 batt insulation, which falls well below the recommended standard for homes in the Central Valley.

To bring his attic up to the Energy Star recommended R38 level, we performed an attic insulation upgrade by blowing in premium fiberglass insulation directly over the existing batts. This method helps maximize thermal performance without removing the existing insulation.

By topping off the insulation to R38, we significantly improved the home’s energy efficiency. The added fiberglass layer will reduce heat transfer between the attic and living spaces, lower HVAC usage, and help maintain more consistent indoor temperatures throughout the year.

Nick can now enjoy a more comfortable home and savings on heating and cooling costs for years to come.