Gravity Roof Vent

Of vented area for every 300 sq.

Gravity roof vent.

The aura gravity ventilator is also florida state texas department of insurance listed and conforms to cal fire standards. Grs aluminum ventilators with curb cap designed to be used as an intake or relief unit on natural gravity or negative pressure systems. Use with mechanical systems. Gravity vents are placed on the roof being the highest part of the structure to provide for exhaust of building air.

Shop for a gravity roof vent from grainger in either hooded or low profile design. Round mushroom style roof vent. Gravity intake and relief ventilators for use in non powered applications. Available with standard flashing or curb mount flashing the aura gravity.

Fabricated gravity relief intake ventilator. A largely arbitrary rule of thumb that s been adopted into most building codes calls for 1 sq. Gravity intake and relief ventilators for use in non powered applications. Low profile gravity roof vents feature corrosion resistant weather resistant rigid aluminum construction and include integral bird screens.

All roof vents are available with curb mount flanges and roof curbs if needed as well. How much air must be moved. Windows and doors at lower elevations provide the intake portals of the gravity ventilation system. Elbow style vent the brock elbow style roof vent offers 190 square inches 1225 square centimeters of ventilation opening.

A built in curb cap offers prepunched holes to help provide for easy attachment to the roof curb. Gravity roof ventilators brock offers two styles of gravity roof ventilators to help provide free air movement into the bin. Models available are the aura gravity ventilators round back static vents keepa attic vents pop vent roof louvers roof exhaust version witches hat vents and universal vents. All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows.

Ul listed this gravity roof vent is rated to withstand wind pressures of over 50 psf which is equivalent to wind speeds exceeding 200 mph. Designed for maximum airflow passage and weathertight integrity bgh comes in either intake or relief models with aluminum or galvanized finishes. Bgh gravity ventilators offer a modern low silhouette design that blend with roof lines and other equipment.