Construction codes of Ontario

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Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1)

Maximum Spans for Hem – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Table A-14 Forming Part of Sentences 9.23.12.3.(1) and (3) and 9.37.3.1.(1) Notes to Table A-14: (1) Where structural sheathing is used, lintel spans may be increased by 15%. Structural sheathing consists of a minimum 9.5 mm thick structural panel […]

Maximum Spans for Spruce – Pine – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1)

Maximum Spans for Spruce – Pine – Fir Lintels – No. 1 or No. 2 Grade – Non-Structural Sheathing(1) Table A-15 Forming Part of Sentences 9.23.12.3.(1) and (3) and 9.37.3.1.(1) Notes to Table A-15: (1) Where structural sheathing is used, lintel spans may be increased by 15%. Structural sheathing consists of a minimum 9.5 mm thick […]

Metal and Vinyl sidings

Metal and Vinyl sidings Metal and vinyl sidings are factory finished and manufactured in many shapes and patterns. They are made to interlock so that only the upper side of the siding is nailed, while the bottom edge is locked to the upper part of the siding strip below (Figure 109). Interior and exterior corners, […]

Minimizing and Preventing Ingress and Damage

Minimizing and Preventing Ingress and Damage (1) Except where exterior walls are protected from precipitation or where it can be shown that ingress will not adversely affect occupant health or safety, exterior walls shall be designed and constructed to, (a) minimize the ingress of precipitation into the assembly, and (b) prevent ingress into interior space. (2) Except […]

Minimum Plywood Cladding Thickness Table

Minimum Plywood Cladding Thickness Table (1) Plywood cladding shall be not less than 6 mm thick when applied directly to sheathing. (2) When applied directly to framing or over furring strips, plywood cladding thickness shall conform to Table 9.27.8.2. Table 9.27.8.2.Minimum Plywood Cladding Thickness Forming Part of Sentence 9.27.8.2.(2) (3) The thickness of grooved or textured plywood shall […]

Minimum Protection from Precipitation Ingress

Minimum Protection from Precipitation Ingress (1) Exterior walls exposed to precipitation shall be protected against ingress of precipitation with an exterior cladding assembly consisting of a first plane of protection and a second plane of protection where the wall encloses spaces of residential occupancy or spaces that directly serve spaces of residential occupancy. Article 9.27.2.2. Ontario […]

Minimum Wall Thickness Chases and Recesses

Minimum Wall Thickness Chases and Recesses (1) Except as provided in Sentence (2) and Article 9.20.7.4., no chase or recess shall be constructed in any wall 190 mm or less in thickness. (2) Recesses may be constructed in 190 mm walls provided they do not exceed 100 mm in depth, 750 mm in height and 500 mm […]