Most building codes require 1 sq. ft. of venting (technically ... "You should not have gable vents with ridge vents and soffit vents," he says, "It defeats the purpose." The ridge vents will ...

Soffit vents often get plugged by debris ... Building codes generally require 1 sq. ft. of vent area for every 300 sq. ft. of attic floor. That assumes half of the vent area is high on the ...

Q: In my primary residence, I had a ridge vent and shingle-over intake vents placed when it got its latest roof, and I had new insulation placed in the attic ...