Twenty-year-old builder insulation
Homes built in the 2000s have had two decades for blown-in insulation to settle and ducts to loosen. A retrofit seals the roof deck and the leaks around chases and top plates.
.webp)
Retrofit · Coweta County, GA
Retrofit Spray Foam in Coweta County, GA
NJ Spray Foam LLC retrofits finished homes across Coweta County, GA with spray foam. We work from the attic, crawl space and garage, so most upgrades happen without opening finished walls.
- Coweta County 30263, 30265, 30276, 30277, 30220
- 10 years of experience
- Climate zone 3A
Retrofit Spray Foam in Coweta County
What to know in Coweta County
Historic homes
Older homes around the Newnan courthouse square and downtown Senoia need a careful look. We inspect framing, roof decking and moisture first and recommend foam only where it suits the structure.
Garage ceilings and bonus rooms
Rooms over garages are the most common retrofit request. Foam on the garage ceiling and knee walls stops heat and fumes from reaching the room above.
Retrofit Spray Foam services we offer in Coweta County
Spray foam upgrades for homes and buildings that are already finished: we remove what is not working, seal the leaks and add foam where it can be reached without tearing the house apart.
- Removal of old, wet or contaminated insulation
- Roof-deck spray foam in existing attics
- Rim joist and crawl space retrofits
- Bonus room, knee wall and garage ceiling upgrades
- Air sealing around ducts, chases and top plates
Coweta County insulation code minimums
Insulation in new homes and additions is inspected under Georgia's state energy code by the city or by Coweta County, depending on the address. We confirm the office before quoting.
| 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) |
Adding blown-in vs retrofitting with spray foam
| Add blown-in insulation | Retrofit with spray foam | |
|---|---|---|
| Air sealing | Little; air still moves through | Seals the surface it covers |
| Ducts in the attic | Stay on the hot side | Can be brought inside the envelope |
| Disruption | Low | Low to moderate; some removal may be needed |
| Best for | Attics that only need more depth | Hot rooms, drafts, ducts in the attic |
Our retrofit process
- 1
Assessment
We find where heat and air get in: attic, knee walls, rim joists, crawl space or garage ceilings.
- 2
Scope
We list what stays, what is removed and where foam goes, with the expected R-value for each area.
- 3
Removal and prep
Old insulation is bagged and removed when needed; we protect living areas and HVAC returns.
- 4
Foam and seal
Spray foam is applied to reachable surfaces and gaps are sealed.
- 5
Clean-up
Debris and overspray are removed and we walk the work with you.
Retrofit Spray Foam in Coweta County: FAQ
Do I need to remove my old attic insulation?
Not always. Dry, clean insulation can stay on the attic floor; wet, contaminated or compressed insulation is removed.
Can you retrofit an older home in downtown Newnan or Senoia?
Often, starting with the attic and crawl space. Walls in older homes need inspection before any foam goes in.
Is a retrofit worth it in a 2000s home?
Usually, if you have hot upstairs rooms or ducts in the attic. We show you the problem areas during the assessment.
-6401.webp?alt=media&token=6a2956fd-a900-4aab-aee5-74087dd7dfa1)
Ready to insulate in Coweta County?
NJ Spray Foam LLC installs retrofit spray foam across Coweta County and nearby areas. Send your address and photos to get started.