Gravity Roof Vent For Elevator Shaft

Depending on the architecture of the building roof these vents were sometimes hard to hide. A built in curb cap offers prepunched holes to help provide for easy attachment to the roof curb. 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.

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The Elevator Shaft Ventilator

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Gravity relief and intake vent.

Gravity roof vent for elevator shaft.

Pul air ventilators are an economical choice where gravity or relief ventilation is required on industrial or commercial buildings. The vents in the side of the hoistway enclosure below the elevator machine room floor or in the roof of the hoistway shall open either directly to the outer air or through noncombustible ducts to the outer air. Gravity ventilators are designed to provide relief exhaust and intake supply airflow for a number of commercial and light industrial applications. 3004 5 1 vents in the hoistway enclosures.

Lsug units include damper doors and a high volume rain gutter to prevent water infiltration. Vent shown in image features a pv 24 c06 277 00 a large pop vent. Hoistway enclosures may be vented in accordance with the following. Size 4 5 6 7 8 9 10 12 14 15 16 18 20 24 30 a dia.

Shop for a gravity roof vent from grainger in either hooded or low profile design. Hoistways of elevators and dumbwaiters penetrating more than three. Gravity ventilators gravity intake and relief ventilators for use in non powered applications. Engineered and certified for both flat roof ventilation and steep slope ventilation the aura gravity ventilator is available for both residential and commercial buildings.

Low profile gravity roof vents feature corrosion resistant weather resistant rigid aluminum construction and include integral bird screens. The pul air is available in galvanized steel aluminum stainless steel or copper construction. 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 elevator vent is an economical easily installed solution for any elevator shaft or machine room application.

Lsug is a low silhouette gravity relief upblast ventilator designed for use on vertical high velocity exhaust systems. Given an elevator shaft serving four 4 stories with three 3 floor ceiling penetrations question is a smoke vent required at the top of the elevator shaft. Throat size 4 5 6 7 8 9 10 12 14 15 16 18 20 24 30. 2009 ibc 3004 1 hoistway venting required.

The rational for having venting originally according to the code commentary was that most fire deaths occur due to smoke which could rise up the elevator shaft. Lsug units are available in 7 sizes from 24 to 60 inches. According to code elevator shafts hoistways meeting certain requirements must be adequately ventilated.