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The values of self-weight listed in this box appear in the Generate Loads form. They are used to generate building masses that are used to create seismic loads. Values may be specified for floor, ceiling, roof, snow, interior wall and exterior wall components.
Roof Self-weight
The default for roof self-weight applies to either the roof mass as if it was a load applied to the projected area of the roof or the actual weights of the sloped roof panel according to which of these is set in the Load Generation input form.
Proportion of snow used
You are able to input the total snow mass and the percentage to be used in seismic mass generation. The factory default is 40 lbs, and 20% used according to ASCE 7 12.7.2-4.