Strong weathertight hoods on these gravity exhaust and supply ventilators feature interlocking arched galvanized steel panels and include a preassembled bird screen.
Gravity ventilator for sloped roof.
Use hooded gravity roof vents with either nonpowered ventilation or in conjunction with powered exhaust supply or reversible fans.
All roof jacks are made of rust free aluminum and come with a 2 inch tail pipe.
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.
Our ul certified aura vents pop vents round back vents and keepa vents are tested to withstand wind pressure speeds up to 200 mph.
76 mm vent be located at each corner of the roof and a minimum of one vent in the middle of the roof.
Engineered and certified for both flat roof ventilation and steep slope ventilation the aura gravity ventilator is available for both residential and commercial buildings.
Venting efficiency is directly proportional to the number of vents employed e g.
All roof vents aura gravity ventilators.
Gravity intake and relief ventilators for use in non powered applications.
54 cm2 of free venting area.
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.
Jack vent cap is made for pitched or steep sloped roofs while the keepa roof jack vent cap is designed for flat or low sloped roofs.
28 m roof is preferable to using 2 vents each with a 72 sq.
4 vents each with 36 sq.