Interactive map lookup of NBC 2020 Appendix C climatic and Site Class C seismic values for major Canadian cities.
Interactive map and search lookup of NBC 2020 Division B, Appendix C design climatic and seismic values (ground snow Ss, rain Sr, hourly wind pressures q, January/July design temperatures, degree-days, and Site Class C seismic Sa/PGA) for major Canadian municipalities. Click a city or search to view all values with copy/JSON/print export. Feeds the snow, wind, rain, and seismic load tools.
Seed dataset of major municipalities only with representative, rounded values - not the official Appendix C tables. No interpolation between locations. 4.
Use for quick design-value reference and to seed load calculations. Confirm every governing value against NBC 2020 Appendix C and the Earthquakes Canada 2020 NBC seismic hazard tool before design use.
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Every tool ships inside the CoLateral desktop workspace, so a result can stay attached to the project, the drawing, and the review trail it belongs to instead of ending up in a loose spreadsheet.
Outputs are design aids and stay in draft until a qualified engineer reviews and approves them.