Attic Restoration to Replace Old Cellulose & Radiant Barrier in Fresno, CA

Janet reached out to us from Fresno because her home wasn’t holding temperature well—hot in the summer and chilly in the winter. Her HVAC was running nonstop, and her energy bills reflected it. When we inspected the attic, we found only 3 inches of old cellulose insulation that had broken down over time and lost much of its insulating value. On top of that, there was a radiant barrier that had been poorly and unevenly installed, doing more harm than good by trapping heat instead of deflecting it.

We recommended a full attic restoration to solve the comfort and efficiency issues. First, we removed all of the outdated cellulose insulation and stripped out the ineffective radiant barrier. With a clean attic deck, we thoroughly sanitized the space using Nisus DSV disinfectant to eliminate allergens, bacteria, and any signs of previous rodent activity.

Next, we sealed all visible air gaps—around plumbing penetrations, electrical wires, and top plates—with closed-cell foam. This air sealing process is crucial for preventing conditioned air from escaping the living space and hot attic air from seeping in.

After the space was fully cleaned and sealed, we installed 14 inches of premium fiberglass insulation, bringing Janet’s attic up to the Energy Star recommended R38 level. We also ensured the soffit vents were clear to promote healthy attic ventilation, which helps regulate attic temperature and reduce moisture buildup.

Now, Janet’s home maintains a much more consistent indoor temperature, allowing her HVAC to run less often and her utility bills to stay low—all while enjoying better indoor air quality and year-round comfort.