Spray Foam Insulation in Port Wentworth, GA

Spray foam insulation in Port Wentworth is mostly about homes built in the last 15 years. The city had 10,878 residents in 2020, more than double the 5,359 counted in 2010, and the 2020 census found 4,424 housing units. Port Wentworth is in the northern corner of Chatham County, bordering Effingham County and the Savannah/Hilton Head airport.

Common problems in newer homes

We usually find ductwork and air handlers in the attic, bonus rooms with kneewalls, and garages under living space. Insulation often meets the code minimum on paper, but gaps at kneewalls, around attic hatches and at duct boots let hot air in. A blower-door-style look at the leaks, plus checking insulation depth, shows where to start.

Roof deck foam or attic floor

If the attic holds the HVAC system, open-cell foam on the roof deck brings it into the cooled space. If it does not, sealing the attic floor and adding blown-in insulation is the cheaper route. We price both in writing.

Garages

Attached garages heat up and pass that heat to rooms above and beside them. Insulating the garage ceiling under a bonus room and sealing the shared walls helps.

History

The Dixie Crystals sugar refinery on Oxnard Drive dates to 1916, and the localities of Meinhard and Monteith are within the city limits. Older homes near the river and the refinery have different needs from the new subdivisions, usually more attic and crawl space work.

Climate

Port Wentworth sits about 23 feet above sea level in Climate Zone 2A. The Department of Energy suggests building an existing attic up toward R-49. Get a free estimate

Bonus room checklist

When a bonus room runs hot, we check the kneewall insulation and whether there is an air barrier behind it, the sloped ceiling above, the floor over the garage, and the supply and return ducts serving the room. Fixing one of these rarely solves it; usually two or three need attention, and we list each one with its price.

Price ranges

HomeGuide puts open-cell foam at about $1.50 to $3.50 per square foot and roof deck foam at about $1,500 to $9,000 for a typical attic. Air sealing runs about $350 to $3,000. The written estimate you get after the visit is the price.