Insulation doesn't fail all at once. It settles. Duluth's subdivisions went up mostly between the mid-1980s and the mid-2000s, and what was blown to twelve inches then is often seven or eight now. Same house, noticeably worse performance, no obvious moment when it changed.
Duluth's 1980s–2000s subdivision boom produced large two-story homes on lots with modest tree cover, and those attics run hotter in summer than the surrounding older Norcross or Doraville stock. The combination of tall foyers, tray ceilings, and bonus rooms means stack effect and infiltration usually matter more than raw R-value in this market.
Here's what our crews typically find when they open up attics and crawl spaces in specific Duluth neighborhoods:
Executive homes where we routinely find compressed attic insulation, under-insulated bonus rooms, and air leakage at multiple tray ceilings.
Lake community homes where crawl space humidity and rim joist sealing usually outrank attic depth as the primary issue.
Older homes near the historic square with thin attic coverage and largely uninsulated walls.
Maximum air sealing and R-value per inch
Filling low spots between joists in Gwinnett-era attics
Compressed fiberglass replaced where depth allows
Moisture control and energy savings below
Safe removal of old or damaged insulation
Attic penetrations in 1980s and 1990s Duluth homes
Gwinnett County
Gwinnett County
Gwinnett County
Gwinnett County
Gwinnett County
Gwinnett County
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