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Calculating Louvre & Grating Spans
When calculating the distance between supports for any Hi-Light louvre or grating profile a complex of factors must enter the algorithm - allowable wind pressures, pressure reduction factors, horizontal or vertical fixing, trafficable or non-trafficable etc.
For a comprehensive list of the underlying assumptions click here

This calculator takes all those factors into account and lets you work out the maximum distance between supports for any Hi-Light louvre or grating profile at a specific point on a project you may be working on.
Before calculating you need to know:

  • Project location and the terrain category.
  • Height of the proposed screen from ground level in metres.
  • Purpose of the screen eg. non-trafficable, horizontal sunshade.
  • Position of screen on building eg. face mounted, away from building edges.
1. Where is the project located    
2. Is screen located close to the corner?    Y   N
3. Terrain Category?   
4. How high from the ground? 
5. Which Grating Profile? ( You can choose 2 at one time)
6. Grating Profile 1   
7. Pedestrian Traffic?    Y   N
8. Assembly Traffic?    Y   N
9. Grating Profile 2    
10. Pedestrian Traffic?    Y   N
11. Assembly Traffic?    Y   N
12. Trafficable Louvre Profile    
13. Orientation?   
14. Pedestrian Traffic?    Y   N
15. Assembly Traffic?    Y   N
16. Non-Trafficable Louvre Profile   
17. Orientation?   
18. Please check your entries to ensure they are correct before submitting.
19. Press the Calculate button to calculate maximum distance between supports.
    
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