Gravity Roof Vent

Use with mechanical systems.

Gravity roof vent.

Hvac and refrigeration roof ventilators gravity exhaust and supply ventilators. Windows and doors at lower elevations provide the intake portals of the gravity ventilation system. Shop for a gravity roof vent from grainger in either hooded or low profile design. The gravity intake and relief ventilators are non powered do not have a fan and work on pressure differential between the inside and outside of the building.

Grs aluminum ventilators with curb cap designed to be used as an intake or relief unit on natural gravity or negative pressure systems. 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. Fabricated gravity relief intake ventilator. Gravity roof ventilators brock offers two styles of gravity roof ventilators to help provide free air movement into the bin.

All roof vents are available with curb mount flanges and roof curbs if needed as well. Gravity intake and relief ventilators for use in non powered applications. The aura gravity ventilator is also florida state texas department of insurance listed and conforms to cal fire standards. Gravity intake and relief ventilators for use in non powered applications.

Bgh gravity ventilators offer a modern low silhouette design that blend with roof lines and other equipment. Available with standard flashing or curb mount flashing the aura gravity. Elbow style vent the brock elbow style roof vent offers 190 square inches 1225 square centimeters of ventilation opening. Low profile gravity roof vents feature corrosion resistant weather resistant rigid aluminum construction and include integral bird screens.

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. A built in curb cap offers prepunched holes to help provide for easy attachment to the roof curb. Of vented area for every 300 sq. Heat stress 9820 air circulators 6249 ventilators 4993 blowers 3369 exhaust fans 2503 exhaust vents 16 roof vents 14 gravity vents 14 supply vents 14 related products.

A largely arbitrary rule of thumb that s been adopted into most building codes calls for 1 sq. How much air must be moved. Designed for maximum airflow passage and weathertight integrity bgh comes in either intake or relief models with aluminum or galvanized finishes.