Installation Manual

DynoRaxx Evolution PR Guide to Code Compliant Installation
5 | P a g e 8 6 6 . 6 2 0 . 2 4 1 0 | d y n o r a x x . c o m
III. Calculating the Total Design Wind Load
A. Wind Design Load Worksheet:
The following worksheet provided below will allow you to record the relevant values required in computing
the total design wind load. Work through the tasks listed in the remainder of the section, and record the
appropriate value in the given space.
Quantity
Value
Task/Page
Basic Wind Speed (mph)
Task 1, Page 5
Mean Roof Height (ft)
Task 2, Page 5
Exposure Category
Task 3, Pages 5-6
Adjustment Factor, 
Task 3, Page 6
Topographic factor 

1
Task 4, Page 6
Occupancy Category
Task 5, Page 7
Importance Factor I
Task 5, Page 6
Effective Wind Area A (sf)
Task 6, Page 8
Least Horizontal Dimension
Task 7, Page 8
Roof Zone
Task 7, Page 9
Net design Pressure


(psf)
Down-Force:
Task 8, Page 10-11
Uplift-Force:
With the values recorded above, it is now possible to compute the total design wind load. This may be done
by multiplying the adjustment factor, the topographic factor, the importance factor, and the net design wind
pressure. Use the equation as stated below:


 



Total Design Wind Load (psf): ______________________________ (Down-Force)
Total Design Wind Load (psf): ______________________________ (Uplift Force)