Reliability analysis of roof sheathing panels on wood-frame houses under wind loads in Canadian cities

Eri Gavanski, Gregory A. Kopp, Han Ping Hong

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

A reliability analysis of roof sheathing panels was performed to assess the current minimum requirements specified in the National Building Code of Canada (NBCC). The present analysis considers the variations in the annual, hourly-mean wind speeds in cities across Canada, the external wind pressures due to roof shape, roof slope, eave height and upstream terrain, the internal wind pressures, for the range of fasteners typical of current construction practice. It was found that the use of 6d (51 mm) common nails with 300 mm spacing on intermediate supports, which is the minimum requirement of NBCC, is not adequate for many regions of the country. It was found that relatively small differences in fastener size result in large differences in roof sheathing performance. Recommendations for revisions to NBCC are made, which involve using 8d (63 mm) nails, with 150 mm spacing on intermediate supports.

Original languageEnglish
Pages (from-to)717-727
Number of pages11
JournalCanadian Journal of Civil Engineering
Volume41
Issue number8
DOIs
Publication statusPublished - 2014 Jun

Keywords

  • Low-rise buildings
  • Roof sheathing
  • Wind damage
  • Wind loads

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Science(all)

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