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How to Determine Wind Pressure Requirements for Your Hurricane Door

Jul 23, 2020

Determining PSF Values for Wind Rated Roll-up Doors

It's important when selecting a hurricane door for your project that you're selecting one with the right design pressures to meet your specified requirements. These measurements are designed to determine the minimum wind force a door (and it's related components) must withstand. 


Selecting the right preliminary design pressures for your hurricane door is important for two main reasons: these specifications are required by code and they enhance both the security and safety of your building.

To aid this process, DASMA has created a wind load calculator to help gauge the wind pressure requirements you'll need for your project. Just keep in mind, these calculated values are for preliminary design purposes only, and final responsibility lies with a registered design professional (Janus International is not responsible for PSF values that differ with design professionals).



Wind Load Calculator and Steps for Hurricane Door

Use DASMA's wind-load calculator to help determine which design pressures meet your specified requirements.



What factors go into determining wind pressure requirements?

How wind resistant your roll-up door needs to be depends on your geographic location, as many locations have specific codes requiring wind-load rated doors to withstand a minimum amount of pressure. For example, states in coastal regions tend to have more stringent requirements. The best way to find out is to contact your local building department and ask about relevant codes for your project.

Determining the design pressure requirements involves a number of factors, including the effective wind area of the door. The effective wind area takes into account the door size, width and height, and the door construction. The smaller the effective wind area, the higher the design pressures tend to be. This is because smaller, more localized and concentrated wind gusts can be much faster and stronger. 


Wind Rated Model 3652

Commercial roll-up door model 3652

Why are both positive (+) and negative (-) wind load values required? 

There are two types of pressure that can effect your door during a high speed wind event, positive and negative. Positive pressures are loads pushing the door into the building, and negative pressures occur when loads are suctioning your door away from the building. Whether the winds are positive or negative is determined by a number of factors, including the direction the wind is blowing and the direction the door is facing. 

  • Positive Pressure: Pushing the door into the building.
  • Negative Pressure: Suctioning the door away from the building.

Making sure your wind load rated doors are up to code is they key to staying protected during a high speed wind event. Hurricane doors will secure your building, keeping everyone and everything safer during severe weather.

Wind Rated Commercial Steel Door

View our Wind Rated Models

With a wide variety of wind rated models, Janus can accommodate the most stringent of requirements. Need help choosing which door is right for your project? Click the image or button below.

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