High Exposure Category Buildings in the high exposure category require additional features to provide the required resistance to lateral loads. Nineteen locations identified in NBC Appendix C fall into this category for wind and 33 for earthquake exposure. For wind, affected locations are in Newfoundland, Quebec, Alberta, Nunavut and the Northwest Territories. Most of the […]

Hip and Valley Rafters (1)  Hip and valley rafters shall be not less than 50 mm greater in depth than the common rafters and not less than 38 mm thick, actual dimension. Article 9.23.13.6. Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.

Hips and Ridges (1)  Shingles on hips and ridges shall be applied so they extend not less than 100 mm on either side of the hip or ridge, and shall be lapped not less than 150 mm. (2)  Shingles referred to in Sentence (1) shall be fastened with nails or staples on each side located not more […]

Hips and Ridges Asphalt Shingles on Slopes of Less Than 1 in 3 (1)  Shingles on hips and ridges shall be not less than 300 mm wide applied to provide triple coverage. (2)  Shingles referred to in Sentence (1) shall be cemented to the roof shingles and to each other with a coat of cement and fastened […]

Hot Applied Rubberized Asphalt Roofing (1)  Hot applied rubberized asphalt roofing shall be installed in accordance with CAN/CGSB-37.51-M, “Application for Hot Applied Rubberized Asphalt for Roofing and Waterproofing”. Article 9.26.15.1. Ontario Regulation 332/12 Building Code,   O. Reg. 332/12: BUILDING CODE (ontario.ca) © Queen’s Printer for Ontario, 2021. The reactivity of the sealing layer on hot-applied […]