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Attic & Crawl Space · Hull, GA
NJ Spray Foam LLC insulates attics and crawl spaces in Hull, GA and the rest of the 30646 area. Rural Madison County homes often sit over crawl spaces and under vented attics, the two places where Georgia homes lose the most comfort.
Attic & Crawl Space Insulation in Hull
Many homes around Hull, Comer and Colbert are built over crawl spaces. Georgia's R402.2.11 lets you insulate the walls of a closed crawl space with R-13 cavity or R-5 continuous, plus a sealed Class 1 vapor retarder on the ground.
An older attic can be topped up to R-38 with blown-in insulation, or sealed at the roof deck with spray foam. If ducts or the air handler sit in the attic, foam at the deck usually pays off more.
Georgia Power customers can receive up to $300 for upgrading attics from R-38 or less to R-49. Jackson EMC members can ask about that utility's insulation rebate before work starts.
Insulation and air sealing for the two places Georgia homes lose the most comfort: the attic above and the crawl space below, with spray foam, blown-in insulation or both.
Insulation in new homes and additions is checked under Georgia's state energy code by the local building official. We confirm with Madison County or the city which permits and inspections apply to your address.
| Location / item | Limit |
|---|---|
| IECC climate zone | 3A (warm, humid) |
| Attic floor (ceiling) insulation | R-38, or R-30 at full depth over the top plates |
| Spray foam at the roof deck (unvented attic) | R-20 minimum on the trade-off path |
| Wood-frame exterior walls | R-13 |
| Unvented crawl space walls | R-13 cavity or R-5 continuous |
| Air leakage test on new homes | Under 5 ACH50, by a certified verifier |
| Georgia Power attic insulation rebate | Up to $300 (R-38 or less → R-49) |
| Vented attic (insulate the floor) | Unvented attic (foam the roof deck) | |
|---|---|---|
| Where the insulation goes | On the attic floor | Under the roof deck and gable walls |
| Ducts and air handler | Stay in a hot attic | End up inside the conditioned space |
| Georgia code minimum | R-38 (R-30 at full depth) | R-20 air-impermeable on the trade-off path |
| Best for | Simple attics without HVAC equipment | Attics with ducts, equipment or storage |
We check insulation depth, ductwork, ventilation, moisture and access in the attic and crawl space.
Vented or unvented attic, floor or wall crawl space insulation, and the R-values each option needs in Georgia.
Wet, compressed or contaminated insulation comes out before new work goes in.
Spray foam, blown-in insulation or both, with air sealing at the gaps that leak most.
We confirm depth and coverage and leave the access points clean and closed.
If the crawl space is vented, insulate the floor above it. If you close the vents and add a sealed vapor retarder, you can insulate the walls instead, which Georgia's R402.2.11 allows.
In climate zone 3A, R-13 cavity or R-5 continuous insulation, extending to within 9 inches of grade, with a 3-inch termite inspection strip below the floor joists.
Yes. We remove wet, compressed or contaminated insulation before installing new insulation.
NJ Spray Foam LLC installs attic & crawl space insulation across Hull and nearby areas. Send your address and photos to get started.
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