Spray Foam Insulation in Dearborn Heights, MI

Spray foam insulation in Dearborn Heights goes into a city that Wikipedia describes as a bedroom community: an inner-ring suburb of Detroit with 63,292 residents in 2020 and 24,076 housing units, of which only 4.9% were vacant. Most of those homes are occupied year round and heated all winter, so sealing the attic and the rim joist pays back in comfort right away.

Water matters here

The southern part of the city drains to the north branch of Ecorse Creek, and Wikipedia notes the area around the Ecorse is subject to flooding. The northern part sits in the Rouge River watershed. If your basement has taken water, we treat insulation choices differently. Closed-cell foam on the rim and upper walls does not wick or hold water. We do not recommend batts against a basement wall that has flooded.

The attic

Most attic floors here have the usual leaks: top plates, plumbing vents, bath fans and recessed lights. We seal those, set baffles at the eaves, and blow cellulose or fiberglass to the depth the Department of Energy suggests for Zone 5, which is R-60 for a bare attic or adding R-49 over 3 to 4 inches.

Code and rebates

Wayne County is in Climate Zone 5A in Michigan's energy code. DTE's insulation rebate page lists amounts for attics, walls, rim joists and basement walls for homes where DTE is the main heat provider.

Rooms over garages and kneewalls

Attached garages and story-and-a-half upstairs rooms are the other two spots we see most often here. A room over a garage needs its floor sealed against cold air and exhaust, which closed-cell foam handles in one step. Upstairs rooms under the roof need their kneewalls insulated and the open floor bays behind them blocked. Both jobs are small compared with a whole-house project, and both fix specific cold rooms.

One visit covers the attic, walls and basement. Get a free estimate