Snow Load (NBCC)

Calculate the minimum snow load in accordance with the National Building Code of Canada (NBCC)

Input:

kPa
kPa
m
m
deg

Output:

    Definitions
    • Ss = Ground Snow Load
    • Sr = Rain Load
    • Cw = Wind Exposure Factor
    • Cb = Basic Roof Snow Load Factor
    • Ca = Accumulation Factor
    • Cs = Slope Factor
    • Lr = Roof Length (Longer Dimension)
    • Wr = Roof Width (Shorter Dimension)
    • lc = Characteristic Roof Length
    • α = Roof Slope in Degrees
    Determine required variables
    • Is, ULS = 1 (Normal Importance)
    • Is, SLS = 0.9
    Determine specified snow load (cl. 4.1.6.2)
    • kPa
    • kPa
    User Notes: