Restraint of Joist Bottoms

Restraint of Joist Bottoms (1)  Except as provided in Sentence 9.23.9.4.(1), bottoms of floor joists shall be restrained from twisting at each end by toe-nailing to the supports, end-nailing to the header joists or by providing continuous strapping, blocking between the joists or cross-bridging near the supports. Article 9.23.9.3. Ontario Regulation 332/12 Building Code,   Information […]
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Restraint of Joist Bottoms

Restraint of Joist Bottoms (1)  Roof joists supporting a finished ceiling, other than plywood, OSB or waferboard, shall be restrained from twisting along the bottom edges by means of furring, blocking, cross bridging or strapping conforming to Article 9.23.9.3. Article 9.23.13.9 Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.
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Ridge board or ridge beam

Ridge board or ridge beam A ridge board (see Figure 83) or a ridge beam (see Figure 84) is used to ensure a level ridgeline and to facilitate placement of the rafters. Erect rafters in pairs and nail them to the ridge board or beam. Toe-nail the lower ends to the wall plate. Locate each […]
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Ridge Support

Ridge Support (1)  Except as provided in Sentence (4), roof rafters and joists shall be supported at the ridge of the roof by,     (a)   a loadbearing wall extending from the ridge to suitable bearing, or     (b)   a ridge beam supported by not less than 89 mm length of bearing. (2)  Except as provided in Sentence […]
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Roof Framing

Roof Framing Design the roof system to support local snow and wind loads and the weight of the roofing materials that will be used.Consider designing the roof structure to support future solar thermal and photovoltaic panels. Consult an engineer to ensure that the roof design addresses loading and electrical requirements.Use raised-heel trusses or deep rafters […]
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Roof framing desciption

Roof framing desciption A roof must have a water-shedding surface air and vapour barriers to prevent moisture accumulation in the roof assembly, thermal insulation and ventilation to remove moisture that has escaped from the conditioned space. In Canada, most houses are framed with prefabricated wood trusses and have an unheated, ventilated attic space. Cathedral ceilings […]
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Roof sheating description

Roof sheating description Sheathing-grade plywood or OSB or lumber planks are applied over roof trusses, joists or rafters to provide a nailing base for the roof covering and lateral bracing of the roof framing. Oncodes.ca publishes this information for educational purposes only
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