Understanding the Wind Provisions of the 2015 National Building Code of Canada (CNBC) – Computing Forces

The computation of wind forces when using the National Building Code of Canada differ from those used by the IBC in that they are wind pressure based, rather than wind speed based. Also, to those of us used to working in I-P units, the input data, which is provided in S-I units, needs to be converted to the proper I-P units as part of the analysis process.

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