Snow loads on multi-level flat roofs in Canada
| Title | Snow loads on multi-level flat roofs in Canada |
| Publication Type | Conference Proceedings |
| Year of Conference | 1987 |
| Authors | Taylor, D. A. |
| Conference Name | 55th Annual Western Snow Conference |
| Series Title | Proceedings of the 55th Annual Western Snow Conference |
| Date Published | April 1987 |
| Publisher | Western Snow Conference |
| Conference Location | Vancouver, British Columbia |
| Keywords | Building codes, Flat roofs, Multi-level roofs, Snow density, Snow drifts, Snow loads, Snow variability |
| Abstract | Between 1967 and 1982, snow depths and densities were recorded on 44 single- and multi-level flat-roofed buildings between Halifax and Edmonton. Analysis of the data indicates that the specific gravity of snow on roofs is about 0.3 and is on the average, about 18% higher than that recommended for design In the 1985 National Building Code of Canada (NBC). The paper presents maximum average and maximum roof snow loads on upper and lower roofs (outside the drifts) and compares these to values recommended for design in the NBC. Data on maximum snow loads in the drifts is compared to NBC provisions. The statistical variability of the snow loads is analyzed to aid establishment of load factors for Limit States Design in the Canadian Code. |
| URL | sites/westernsnowconference.org/PDFs/1987Taylor.pdf |
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