Ask three Marietta homeowners what's wrong with their house and you'll get three unrelated answers. A Victorian by the Square has empty balloon-framed walls. An East Cobb colonial from 1994 has an attic that settled. A West Cobb house has a crawl space the size of a basement doing nothing good.
Mature hardwood canopy over the older neighborhoods keeps attic temperatures moderate but slows drying after summer storms, while the cleared-lot subdivisions along the East and West Cobb corridors bake. We log 30°F differences between attics only a few miles apart. Kennesaw Mountain also channels cold air down into the low-lying pockets around Sope Creek, where floors over crawl spaces run noticeably colder in January.
Here's what our crews typically find when they open up attics and crawl spaces in specific Marietta neighborhoods:
Bungalows and cottages with balloon framing and no wall insulation where dense-pack cellulose injection is usually the only viable retrofit.
Established family homes where original attic batts have been disturbed repeatedly and low spots are the norm.
Larger two-story homes where under-insulated bonus rooms and settled blown-in are the top two findings.
Maximum air sealing and R-value per inch
Even depth restored across East Cobb's disturbed attic floors
Garage ceilings, knee walls, and finished bonus room cavities
Vapor barriers and band-board sealing under West Cobb homes
Safe removal of old or damaged insulation
Stop drafts and air leaks throughout your home
Older homes near the square were built to breathe, and that changes the rules. Tighten one of these houses the way you'd tighten a 2005 build and you can trap moisture inside a wall assembly that was never designed to hold it, so the sequence and the materials matter as much as the R-value.
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