Local crew, short drive
Hull is home base, so a site visit in the 30646 area is a short trip. That makes it practical to insulate one room, a bonus room or an addition, not just whole houses.
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Residential · Hull, GA
Residential Spray Foam Insulation in Hull, GA
NJ Spray Foam LLC installs residential spray foam in Hull, GA from our local shop. We spray open-cell foam on roof decks and walls and closed-cell foam on rim joists and floors for farmhouses, 1990s homes and new builds across the 30646 area, Colbert and Danielsville.
- Hull 30646
- 10 years of experience
- Climate zone 3A
Residential Spray Foam in Hull
What to know in Hull
Older farmhouses and 1990s homes
Many Hull homes have vented attics with settled blown-in insulation and no air sealing at the top plates. Spray foam on the roof deck seals the attic and keeps ducts out of summer heat.
New construction in Madison County
For new homes, foam goes in after rough-in and before drywall. Georgia requires R-13 walls, R-38 ceilings or R-20 foam at the roof deck, and a blower-door result under 5 ACH50, which spray foam helps meet.
Residential Spray Foam services we offer in Hull
Open-cell and closed-cell spray foam for new and existing homes, applied to roof decks, exterior walls, rim joists and floors so the house is insulated and air-sealed in one step.
- Open-cell spray foam for roof decks and walls
- Closed-cell spray foam where moisture or strength matters
- Unvented (conditioned) attic conversions
- Rim joist, band board and bonus-room sealing
- Fiberglass and blown-in insulation when foam is not the best fit
Hull insulation code minimums
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) |
Open-cell vs closed-cell spray foam
| Open-cell | Closed-cell | |
|---|---|---|
| R-value per inch | About R-3.5 to R-3.8 | About R-6 to R-7 |
| Air sealing | Yes, seals gaps as it expands | Yes, and adds rigidity |
| Moisture | Vapor-open; assemblies can dry | Acts as a vapor retarder |
| Typical use in homes | Roof decks, interior side of walls | Rim joists, crawl spaces, below grade |
Our residential process
- 1
Walkthrough
We look at the attic, walls and crawl space, measure the areas and note ducts, wiring and moisture.
- 2
Recommendation
Open-cell or closed-cell, thickness and target R-values set against Georgia's energy code for your climate zone.
- 3
Prep and protection
We cover floors, windows and fixtures and set up ventilation for the spray area.
- 4
Spray and trim
Foam is applied in passes to the specified depth, then trimmed flush where walls will be closed.
- 5
Clean-up and review
We remove waste and overspray and walk the finished areas with you.
Residential Spray Foam in Hull: FAQ
How long does a residential spray foam job take in Hull?
Most attic or whole-house projects take one to two days on site, depending on size. Smaller jobs like a bonus room or rim joists are often done in a day.
Open-cell or closed-cell for my Hull home?
Open-cell for roof decks and interior walls in most homes; closed-cell for rim joists, crawl spaces and areas exposed to moisture. We recommend based on what we find on the visit.
Do you insulate new homes being built near Hull?
Yes. We work with builders and owner-builders in Madison County and spray before drywall so the home can pass the energy code inspection and blower-door test.
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Ready to insulate in Hull?
NJ Spray Foam LLC installs residential spray foam across Hull and nearby areas. Send your address and photos to get started.