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.

The flow of fresh air across roof shingles draws hot, moist attic air out through a ridge vent and pulls fresh air into the attic through soffit vents. This roof ventilation is important because ...

A ridge vent offers 10 to 20 square inches of free venting per foot of vent (depending on roof style), so that's a plus when a roof generally requires one square foot of free venting for every 150 ...

We are shopping for a new roof for our house and have sought bids from various roofing companies. We want to get it done this summer. Most of the estimators mention the option of a ridge vent ...

Ridge vents do little or nothing to lower the temperature inside an attic. In fact, they would have to break the laws of physics to work. Hot air rises, it doesn’t go down.

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 ...

Regardless of the amount of airspace underneath the roof covering, the system provides the correct amount of net-free vent air. The Hi-Perf Ridge Vent accommodates both standing-seam metal and ...

Q. What are the pros and cons of a roof ridge vs. side vents on a home? I have a condo which has side vents at the top of the condo’s two side peaks and there are small vents under the outside ...

Q: What kind of attic vent is best? The roofer I’ve hired wants ... and reduces the possibility of ice dams developing in winter. A cooler roof in summer also increases shingle life.