We are so pleased with the work the team from Evergreen Home Performance did in our home. The project included encapsulation of our basement with a reinforced vapor barrier, installation of a sump pump, spray foam insulation on the walls and insulation of the heating duct work. ...
Leaky duct in an interstitial space showing no condensation When the ducts were leaking into those joist cavities, they did two things that reduced the potential for condensation. First, they spilled cool, dehumidified air into those spaces. Second, they put a positive pressure there. The diagram...
Band joists for second floors fall closer to the neutral pressure plane—the middle section of a building’s height—and therefore, they do not tend to be as affected by stack pressures. Nevertheless, they are still extremely leaky owing to the number of cracks formed by all the pieces joini...