Basement box sills and rim joists are a major source of energy loss. These areas are located around the perimeter of the basement ceiling where the walls of the home meet the foundation. They are some of the thinnest points in a home’s exterior and allow outside air to easily leak into the basement.
Not only can unconditioned outside air enter the home through these areas, they are also convenient entrance points for pests. Spiders, bugs and other creatures can find their way into your home through residual penetration points around HVAC, electrical and plumbing access points next to the basement ceiling.
Spray foam is an ideal two-in-one product choice that both insulates and air seal rim joists and box sills. Be sure to hire a qualified, insured and experienced spray foam contractor to ensure your basement box sills and rim joists are properly insulated and air sealed.
Insulating and air sealing your rim joists and box sills will make your basement (and entire home) more comfortable, reduce pest infestation and help lower your energy bills. Contact us to schedule your free estimate!