OBC 2006 › Division B
9.23.15.7.
Version 1 — in force 1 January 2010
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- Edition
- OBC_2006
- Division
- B
- Provision
- 9.23.15.7.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
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Tell us what is wrong and we will verify & correct our mapping.
- Edition
- OBC_2006
- Division
- B
- Provision
- 9.23.15.7.
- Version
- v1
240. (1) Subject to subsections (2), (3), (4), (5), (6) and (7), this Regulation comes into force on the later of January 1, 2010 and the day this Regulation is filed.
Read directly from the regulation's own commencement section.
O. Reg. 503/09 · commencement 240(1)
This version stayed in force until the next edition replaced it. What follows is that edition’s base regulation’s commencement — the takeover that ended this one.
(1) Subject to Sentences (2) and (3), this Regulation comes into force on January 1, 2014.
Read directly from the regulation's own commencement section.
O. Reg. 332/12 · commencement 4.4.1.1(1)
Provenance
OBC 1997 · renumbered from 9.23.15.6. — Pro
Base · O. Reg. 350/06 · ext v0 →
O. Reg. 503/09, cl. 176 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 9.23.15.7. — Pro
9.23.15.7. — Thickness or Rating
(1) The thickness or rating of roof sheathing on a flat roof used as a walking deck shall conform to either Table 9.23.14.5.A. or Table 9.23.14.5.B. for subfloors.
(2) The thickness or rating of roof sheathing on a roof not used as a walking deck shall conform to either Table 9.23.15.7.A. or Table 9.23.15.7.B.
(3) Asphalt-coated or asphalt-impregnated fibreboard not less than 11.1 mm thick conforming to CAN/ULC-S706, “Wood Fibre Thermal Insulation for Buildings”, is permitted to be used as a roof sheathing over supports spaced not more than 400 mm o.c. provided the roofing consists of,
(a) a continuous sheet of galvanized steel not less than 0.33 mm in thickness, or
(b) a continuous sheet of aluminum not less than 0.61 mm in thickness.
(4) All edges of sheathing described in Sentence (3) shall be supported by blocking or framing.
Text · e-Laws consolidated snapshot
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 | Column 6 |
Maximum Spacing of Supports, mm | Minimum Thickness, mm | ||||
Plywood and OSB, O-2 Grade | OSB, O-1 Grade and Waferboard, | Lumber | |||
Edges Supported | Edges Unsupported | Edges Supported | Edges Unsupported | ||
300 | 7.5 | 7.5 | 9.5 | 9.5 | 17.0 |
400 | 7.5 | 9.5 | 9.5 | 11.1 | 17.0 |
600 | 9.5 | 12.5 | 11.1 | 12.7 | 19.0 |
Column 1 | Column 2 | Column 3 |
Maximum Spacing of Supports, mm | Panel Mark | |
Edges Supported | Edges Unsupported | |
400 | 2R16 | 1R16 |
500 | 2R20 | 1R20 |
600 | 2R24 | 1R24 |
Provenance
OBC 1997 · renumbered from 9.23.15.6. — Pro
Base · O. Reg. 350/06 · ext v0 → compare
O. Reg. 503/09, cl. 176 · ext ← current
In force 2010-01-01
OBC 2012 · continues as 9.23.15.7. — Pro