Understanding Snow Load
Roof snow loads are influenced by elevation, general weather and moisture patterns, slope direction, exposure, roof configuration and wind direction and severity. Overestimation of snow loads can unnecessarily increase the cost of construction.
North Cowichan Ground Snow Load Figures
| Location | Ss (Snow) | Sr (Rain) |
|---|---|---|
| Crofton | 1.8 kPA | 0.2 kPA |
| Duncan | 1.8 kPA | 0.4 kPA |
Depth of Footings for Frost Protection
Minimum Depth of Footings for Frost Protections:
(measured from finished grade to underside of footing)
0.457 m (18 inches) in North Cowichan
Document type(s)
Permits