Air leaks at rim joists and top plates
Why it happens here
Wind exposure on the elevated ridge pushes air through every gap in the building envelope. Rim joists and top plates are the most common leak points because builders rarely seal them. Fiberglass batts do not stop air movement, so the leaks stay active even with insulation in place.
Our approach
We air-seal every rim joist and top plate with spray foam before installing insulation. Then we verify with a thermal imaging camera so you can see the leaks are closed. This is the single most effective step for a windy ridge home.