Photo Album: Ashburn VA basement gets sealed up with spray foam

Hot air rises so your home often loses most of its conditioned air via the top floor in your home. When air leaves from the top of your home it is replaced by air coming from the bottom of your home, which often means through windows, doors and rim joists.. This bit of home science is known as the Stack Effect. This Ashburn VA home is now better suited to keep conditioned air inside and avoid from having external air come into the basement. External air often has allergens and can impact the temperature in your home if it is especially hot, cold or humid. The windows in this basement were air sealed with ZypFoam and the rim joists were all insulated with spray foam.

Rim Joist Before

Our sales pros design and communicate which services are needed and how they are to be applied.

Rim joist before

While this material may look like it is working, the lack of an air seal means that air can still come through the cracks and seam around the rim joists.