Why does this matter?
Air leaks exist around the building envelope – the outermost layer of the home (exterior walls, rooflines, etc.). Air leaks through penetration points that are found around recessed lights, plumbing stacks, electrical wires, attic hatches/doors, chimneys and more. Sealing air leaks keeps conditioned air inside your home. When these air leaks are sealed, conditioned air you’ve already paid for stays in your home. This results in your HVAC system working less, which keeps money in your pocket.
When installing spray foam insulation, the building cavity is insulated and air sealed in one pass. This means one installation provides a thermal barrier and seals penetration points. Air sealing can be performed in combination with other types of insulation, requiring additional labor on the project. If not applied precisely, air sealing won’t have the desired effect. With one spray foam application, you are assured air leaks are completely sealed.
Have other questions about spray foam? Contact our office today!