Gravity Flow Roof Vents

Gravity vents are placed on the roof being the highest part of the structure to provide for exhaust of building air.

Gravity flow roof vents.

They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling. Choose one of the following products to meet the recommended exhaust nfva of 528 square inches. Gravity ventilators gravity intake and relief ventilators for use in non powered applications. 27 lineal feet required.

Low profile gravity roof vents feature corrosion resistant weather resistant rigid aluminum construction and include integral bird screens. Venting efficiency is increased in direct proportion to he number of vents used. A minimum of two vents are required to vent any individual roof area. Engineered and certified for both flat roof ventilation and steep slope ventilation the aura gravity ventilator is available for both residential and commercial buildings.

Ventsure 4 foot strip heat moisture ridge vent. They are typically easier to install and won t detract from the appearance of your roof. The brock elbow style roof vent offers 190 square inches 1225 square centimeters of ventilation opening. Gravity air vents 144 square inches 930 cm of free venting area is required to vent 300 square feet of roof area 1 300.

It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters connectors or end plugs needed. Brock offers two styles of gravity roof ventilators to help provide free air movement into the bin. Round mushroom style roof vent. A built in curb cap offers prepunched holes to help provide for easy attachment to the roof curb.

Shop for a gravity roof vent from grainger in either hooded or low profile design. Commercial gravity roof exhaust aura ventilators function much like their residential roof vent version. Use with mechanical systems. Windows and doors at lower elevations provide the intake portals of the gravity ventilation system.

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. Both function like roof turbines more static vents with or without curb mount flanges. Four vents each with 36. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.

Ventsure 4 foot strip heat moisture ridge vent with weather protector moisture barrier.