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GI/GR Gravity Vent

GI / GR Series

Gravity Vent

High efficiency gravity roof ventilators designed using the latest Computational Fluid Dynamic (CFD) and Finite Element Analysis (FEA) software packages
Bases are manufactured with a rounded flange around the throat that decreases pressure losses due to turbulence. (See CFD Models Below)
Available with throats in widths from 12” to 72” and unlimited length starting at 12”.
Units come standard with integral lifting lugs.
Tie down points are standard to allow for additional restraints to be added in the field as required.
Rain gutters are standard to help eliminate rain infiltration.
Roll formed hood panels provide excellent strength characteristics as well as creating a unit that is architecturally pleasing.
Units are designed to exceed 30 lbs./ft2 snowload rating.
Hinged hoods are standard on GR units with less than a 73” throat length and GI units with less than a 61” throat length.

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