version 1.0.1
October 1, 2022

Roof Snow Load (NBC 2015)

jabacus

Roof Snow Load (NBC 2015)

version 1.0.1
October 1, 2022

Climatic Data

Location
Province:
Ground snow load
Ss:
Rain Load
Sr:
Importance factor
Is:
Factors
Cb:

If Cb left blank, provide the dimensions in the roof geometry to compute Cb

Cw:
Ca:
Roof Geometry
Pitch:
/12
Slippery:
Roof Plan dimensions
Dimensions used to calculated Cb if Cb left empty.
Longer dimension, l:
m
Shorter dimension, w:
m
Thinking...

Specified Snow Load

S = Is[Ss(CbCwCsCa)+Sr] [4.1.6.2]

Factors

User input values:
Ss = 1 / Sr = 1
Importance Factor, ULS: Is = 1.0 / SLS: Is = 0.9
Roof slope = 0 degrees
Slope Factor
For non-slippery roof:
Slope <= 30 degrees.
Cs = 1

ULS:

S = 1.0[1(0.8*1.0*1*1.0)+1] = 1.8kPa

S = 1.8 kPa

S = 37.6 psf


SLS:

S = 0.9[1(0.8*1.0*1*1.0)+1] = 1.62kPa

S = 1.62 kPa

S = 33.8 psf

By using Jabacus or information derived from this Service, you have agreed to the Terms of Service.

This information must be read or used in conjunction with Part 4 of the NBC 2015. In the event of discrepancies, Part 4 of the NBC 2015 shall govern.

By using Jabacus or information derived from this Service, you have agreed to the Terms of Service.

This information must be read or used in conjunction with Part 4 of the NBC 2015. In the event of discrepancies, Part 4 of the NBC 2015 shall govern.


© 2009–2022 Modulo Software Inc. All Rights Reserved