Ridge vents are generally more effective because ... in moist air — a major concern if you have or are considering a metal roof as it contributes to high humidity, condensation, and mold.

DIY metal roof installation will knock off thousands ... If the roof is supposed to vent at the ridge, you’ll need a vented closure strip, if not, you can use a solid closure strip.

Codes vary, so call your local building department to know how to install metal roofing ... soffit vents underneath. Cool outside air then travels under the shingles to the vented ridge, pulling ...