Industrial Door Wind Load: Why It Matters

What wind load means for industrial doors, why large external openings need wind-rated designs, and how to choose doors for exposed sites.

Large external doors act like sails. When strong wind hits a wide door, it pushes the curtain or panels in or out with considerable force. A door that is not designed for the wind at its site can bend, jam, come out of its guides or fail completely during a storm.

What is wind load?

Wind load is the pressure the wind applies to the door's surface. The larger the door, the greater the total force. Exposed sites such as open industrial areas, coastal locations and tall buildings face higher wind loads than sheltered sites.

Factors that affect wind load

• Door size: wider and taller doors catch more wind
• Location: open, coastal and high-rise sites are more exposed
• Building design: openings facing prevailing winds face more pressure
• Pressure differences: other open doors and ventilation can increase pressure on a door

How doors are made wind resistant

Door type	Wind features
Rolling shutters	Stronger slats, wind locks or wind hooks in the guides
Sectional doors	Reinforced panels and struts, strong tracks
High speed doors	Wind bars, wind-resistant guides, self-repairing curtains

Signs your door is struggling with wind

• The curtain or shutter bows heavily in strong wind
• The door jams or comes out of its guides on windy days
• Noise and rattling in the guides
• Repeated damage to slats or panels after storms

How to choose

Share the opening size, the site location and how exposed the opening is with your door supplier. They can recommend a door type and reinforcement suited to the conditions. For very wide external openings, wind resistance should be part of the specification from the start.

Frequently asked questions

Do internal doors need wind resistance?

Usually much less, although pressure differences inside large buildings can still affect wide internal doors.

Can existing shutters be made more wind resistant?

In some cases, wind locks or reinforcements can be added. A technician can assess whether an upgrade or replacement is the better option.

Are high speed doors suitable for windy sites?

Yes, external high speed doors are available with wind bars and reinforced guides designed for exposed openings.

Installing doors on an exposed site? Rudhar can recommend wind-resistant shutters, sectional doors and high speed doors.