Snow Drift Loading
Adjacent to Roof Obstructions (NBC2020)
v1.0.0
File:
Project:
Designer:
Date:

Climatic Data

Location
Province:
Ground snow load
Ss:
Rain Load
Sr:
Density
Snow density, γ:
kN/m3 *If left blank, γ will calc as per cl. 4.1.6.13

Factors

Importance factor
Is:
Factors
Cb:
*Optional
Cw:
snow drift distribution

Roof Projection

Length, l0:
m
Height, h:
m

Roof geometry

Pitch:
/12
Slippery:
Longer dimension, L:
m
Shorter dimension, w:
m

*L and w only changes results if no Cb provided
Thinking...

This information must be read or used in conjunction with Part 4 of the NBCC 2020. In the event of discrepancies, Part 4 of the NBCC 2020 shall govern.