Scope & assumptions
NBCC-style roof snow workspace using user-selected climatic values and roof modification factors.
METRIC REPUBLIC ENGINEERING · PRELIMINARY
NBCC 2025 Roof Snow Load Workspace
Roof snow load workspace with editable ground snow/rain values and NBCC roof modification factors.
NBCC 2025SnowRoof load
Calculation basis
S = Is·[Ss·Cb·Cw·Cs·Ca + Sr].
Important engineering note: Drifting, sliding, adjacent roofs, accumulation geometry, special roof shapes and local jurisdictional requirements can govern. Select climatic data and all factors from NBCC 2025 / the adopted provincial or territorial code.
Reference basis
Related tools
Frequently asked questions
Is this a complete code design?
No. It is a transparent preliminary calculation. Code-specific limits, detailing, stability and project conditions must be verified independently.
Can I use the result for construction?
Use the result as a screening or checking aid only. Final design and construction documents should be verified by a qualified professional where required.
Why are some resistance factors entered by the user?
Many design standards contain member-, material-, product- or project-specific values. Metric Republic keeps these visible and user-controlled instead of hiding assumptions.