To determine Ground Snow Load:

           Multiply the elevation by the Contour Interval from the map available below.

To determine Roof Snow Loads:                            

           Multiply the elevation by the Contour Interval from the map available below and then multiply that product by 80%.

**Roof is 20% of Ground Snow Load

Ex.      2500 x .025 x .80 = 50lb snow load

• Wind level---90 miles per hour
• Seismic Category---Site Class B
• Frost Depth---32"

Snow Load Map for Clearwater County