To vent the roof, holes are cut in the old roof above the soffit ... the same as an installed asphalt roof for those who want to learn how to install a metal roof on their own. These systems arent ...

Roof ventilation systems are vital to your roof’s function and help your home stay dry and comfortable. There are many types of roof vents to choose from, though, and the options can get confusing.

Complicated roof designs also increase the price, as features such as chimneys, vents, and skylights require extra time and labor to work around. The national average cost for metal roofs is $11,000.

I am reroofing the house and have a question about roof venting. Most houses in the neighborhood have ridge vents on all their ridges. Some have electric vent fans, and one house has a fan powered ...