Vacation and second homes
Cabins and lake homes left empty part of the year collect moisture. Sealing rim joists and crawl spaces keeps damp air out while the home is closed.
Retrofit · Dawson County, GA
NJ Spray Foam LLC retrofits existing cabins, lake homes and houses in Dawson County, GA with spray foam. Older mountain homes often have thin insulation in vaulted ceilings and drafty crawl spaces that a retrofit can fix from accessible areas.
Retrofit Spray Foam in Dawson County
Cabins and lake homes left empty part of the year collect moisture. Sealing rim joists and crawl spaces keeps damp air out while the home is closed.
Rodents and moisture damage insulation in crawl spaces and attics. We remove it before new foam goes in.
Dawson County winters are colder than metro Atlanta's (zone 4A). Air sealing in a retrofit cuts drafts as much as it cuts summer heat.
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.
Insulation in new homes and additions is inspected under Georgia's state energy code by Dawson County or the City of Dawsonville, depending on the address. We confirm the office before quoting.
| Location / item | Limit |
|---|---|
| IECC climate zone | 4A (mixed, 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-10 continuous |
| Unvented attic with fiberglass or cellulose | R-20 plus R-15 rigid foam above the deck |
| Air leakage test on new homes | Under 5 ACH50, by a certified verifier |
| 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 |
We find where heat and air get in: attic, knee walls, rim joists, crawl space or garage ceilings.
We list what stays, what is removed and where foam goes, with the expected R-value for each area.
Old insulation is bagged and removed when needed; we protect living areas and HVAC returns.
Spray foam is applied to reachable surfaces and gaps are sealed.
Debris and overspray are removed and we walk the work with you.
Where the roof is accessible from an attic or during a re-roof or remodel, yes. Closed ceilings are assessed case by case.
Yes. Insulation removal is one of our services.
Often, with access arranged in advance. We confirm details during scheduling.
NJ Spray Foam LLC installs retrofit spray foam across Dawson County and nearby areas. Send your address and photos to get started.