A few years ago, I was helping a friend install baffles around her soffit vents. In the middle of the day, neither of us could stay in the attic longer than a few minutes. We didn't measure the ...
Some have electric vent fans, and one house has a fan powered ... code SFM 12-7A keep embers from blowing into the attic and setting the house on fire. Some of these vents have coatings that ...