Attic Insulation & Air Sealing in Macon, GA

Attic insulation and air sealing is usually the best first step in a Macon home. Attics here get extremely hot in summer, and many homes run ductwork and an air handler through them. Gaps in the ceiling let cool air escape, thin insulation lets the ceiling heat up, and duct leaks pull in attic air.

Seal first

We seal the gaps between the house and the attic: around light fixtures, plumbing vents, wiring, chases, the tops of interior walls and the hatch or pull-down stairs. HomeGuide lists air sealing at $350 to $3,000.

Then add depth

Georgia's code lists R-38 for ceilings. For existing homes in Zone 3, the Department of Energy suggests R-49 to R-60 if the attic is empty, or adding R-38 to R-49 over 3 to 4 inches. Blown-in cellulose or fiberglass is the most economical way to get there, at roughly $0.90 to $2.40 per square foot. Georgia Power's program asks for existing insulation at or below R-38 and insulation added to R-49 for its attic rebate.

Roofline foam

When ducts and the air handler are in the attic, foam on the roof deck makes the attic part of the conditioned space. The ducts stay in cooler air and leaks cost less. HomeGuide lists roof-deck foam at $1,500 to $9,000. We price it next to a sealed, vented attic so you can compare.

Ventilation

For vented attics, baffles keep soffit vents open and bath fans should vent outside. Get a free estimate