Spray Foam Insulation in Falls Church, VA

Spray foam insulation in Falls Church serves a compact city of mostly older homes. Falls Church seceded from Fairfax County and incorporated as an independent city in 1948. At 2.11 square miles it is the smallest incorporated municipality in Virginia. The 2020 census counted 6,172 housing units, 5.8 percent vacant. The name comes from the Falls Church, a parish founded in 1734.

Housing

Falls Church has a mix of early 20th-century houses, postwar homes and newer infill. Older houses need attic sealing, rim joist foam and sometimes dense-pack walls; renovations and additions are the time for foam in open walls.

Code

Virginia's 2021 Residential Code took effect January 18, 2024. Falls Church is in Climate Zone 4A.

Summer heat

Attics over older houses here get very hot in summer. Sealing and topping up the attic is often the most noticeable upgrade.

Basements and crawl spaces

Older Falls Church houses may have partial basements with crawl spaces under additions. We often seal the crawl space, lay a ground vapor barrier and foam the walls, then foam the rim joist in the basement.

Knee walls and finished attics

Story-and-a-half houses with finished upstairs rooms benefit from foam or dense-pack behind the knee walls and in the sloped ceilings.

Ventilation

Tightening an older house means bath and kitchen fans need to vent outdoors. We check them during the visit.

Mature trees and roofs

Many Falls Church streets are lined with big old trees. Shaded roofs stay cooler in summer, but they also hold leaves and moisture, so we look at the roof deck and attic for staining before sealing anything in.

Our approach

We look at the attic, basement or crawl space and any walls of concern, and send a written quote area by area. Get a free estimate