Passive roof vents encourage natural air flow and work without the aid of motorized fans. Roof vents enhance the overall comfort of the house by providing escape hatches for hot, stale, moist air, which can reach temperatures of 150 degrees in summer.
We want your home to be comfortable, so ask your Dallas roofing contractor about what options you have to protect your home as well cool it. Roof vents could be the key to your perfect temperature while they circulate the air in your home.
In winter, you need to dump that hot air before it condenses, which can lead to rot and mold. Warm air trapped in the attic during winter also may cause rapid melting of snow, which then refreezes as ice dams—mini glaciers that can push up shingles and peel off gutters and soffits.
The rule of thumb for proper attic ventilation calls for a minimum of 1 square foot of vent area (openings) for every 300 square feet of attic floor space. If you have asphalt shingles, you must have some kind of attic ventilation or you’ll risk voiding the warranty.
Getting rid of hot air is just part of the equation. You also need intake vents, which are usually soffit (or under-eave) vents. Made of aluminum or vinyl, they contain tiny perforations or slits for airflow, and are available as either narrow strips that butt together, or as smaller, wider vents that fit between roof joists.