Construction codes of Ontario

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Grade Marking (Lumber and Wood Products)

Grade Marking (1) Lumber for joists, rafters, trusses and beams and for the uses listed in Table 9.3.2.1. shall be identified by a grade stamp to indicate its grade as determined by the NLGA, “Standard Grading Rules for Canadian Lumber”. Article 9.3.2.1 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Guards

(1) Except as provided in Sentence (6) and Articles 3.3.2.8. and 3.3.4.7., a guard not less than 1 070 mm high shall be provided, (a) around each roof to which access is provided for other than maintenance, (b) at openings into smoke shafts referred to in Subsection 3.2.6. that are less than 1 070 […]

Guards indoors and outdoors

Guards indoors and outdoors (1) Except as required by Sentences (2) to (4) for bleacher seats, guards shall be installed in outdoor and indoor places of assembly with fixed seats so that, (a) at the fascia of every box, balcony or gallery where the seats extend to the edge, the height of guards is […]

Gypsum Board Materials

Gypsum Board Materials (1) Gypsum products shall conform to, (a) CAN/CSA-A82.27-M, “Gypsum Board”, (b) ASTM C1178 / C1178M, “Coated Glass Mat Water-Resistant Gypsum Backing Panel”, or (c) ASTM C1396 / C1396M, “Gypsum Board”. Article 9.29.5.2 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only

Gypsum Board Maximum Spacing of Supports

Gypsum Board Maximum Spacing of Supports (1) Maximum spacing of supports for gypsum board applied as a single layer shall conform to Table 9.29.5.3. Article 9.29.5.3. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. GYPSUM BOARD FINISH Gypsum board is the most widely used interior finish because of its speed […]

Gypsum Board Supporting Insulation

Gypsum Board Supporting Insulation (1) Gypsum board supporting insulation shall be at least 12.7 mm thick. Article 9.29.5.4. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. GYPSUM BOARD FINISH Although 9.5 mm (3⁄8 in.) thick gypsum board may be used on walls with support spacings up to 400 mm (16 […]

Gypsum Products

Gypsum Products (1) Gypsum products shall conform to, (a) CAN/CSA-A82.27-M, “Gypsum Board”, (b) ASTM C1178 / C1178M, “Coated Glass Mat Water-Resistant Gypsum Backing Panel”, or (c) ASTM C1396 / C1396M, “Gypsum Board”. Article 9.29.5.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.