Design pressure has positive and negative values.
Psf garage door.
Why are both positive and negative wind pressures required.
An easier way to find out about the windcode rating for your area is by using the clopay windcode calculator.
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The design wind load pressure rating of a door is expressed in psf pounds per square foot.
Garage door design pressure is measured in psf and needs to exceed the pressure of the opening where the garage door will be installed.
Design pressure has positive and negative values.
As the homeowner it s important to check with your local building code official for your home s specific wind load requirements and appropriate design pressure psf pounds per square foot to help in determining the best door option for your home s demands.
Test pressures for garage doors have a 50 safety factor making test pressures one and a half times higher than design pressures.
Wind can blow in any direction including away from a wall surface.
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