After windows, doors, and skylights are installed, the space between the frame and the structure must be sealed against air infiltration. This is typically accomplished with ____ insulation designed specifically for this purpose.
A) low-expansion spray foam
B) flexible plastic
C) rubber
D) PVC

Question

Quizplus · Accepted Answer

Low-expansion spray foam insulation is specifically designed for sealing the space between the frame of windows, doors, and skylights and the structure to prevent air infiltration. It expands to fill gaps but does so with controlled expansion to avoid distorting the frames.

After Windows, Doors, and Skylights Are Installed, the Space Between