OBC 2006 › Division B
6.2.4.2.
Version 0 — in force 31 December 2006
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- Edition
- OBC_2006
- Division
- B
- Provision
- 6.2.4.2.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(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
- 6.2.4.2.
- Version
- v0
(1) This Regulation comes into force on December 31, 2006.
Read directly from the regulation's own commencement section.
O. Reg. 350/06 · commencement 2.2.1.1(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 · continues from 6.2.4.2. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 6.2.4.2. — Pro
6.2.4.2. — Duct Design
(1) Materials in supply ducts shall conform to Article 6.2.3.2.
(2) Galvanized steel or aluminum supply ducts shall conform to Table 6.2.4.2.
(3) The design of fitting for ducts shall conform to SMACNA, “HVAC Duct Construction Standards - Metal and Flexible”, except that metal thickness shall conform to Table 6.2.4.2.
Text · e-Laws consolidated snapshot
Column 1 | Column 2 | Column 3 | Column 4 | Column 5 |
Type of Duct | Maximum | Maximum | Minimum Metal Thickness, mm | |
Diameter, | Width or Depth, | Duct Material | ||
mm | mm | Galvanized Steel | Aluminum | |
Round ducts serving single dwelling units | 125 or less | --- | 0.254 | 0.30 |
Round | 350 | --- | 0.33 | 0.30 |
over 350 | --- | 0.41 | 0.41 | |
Rectangular, enclosed | --- | 350 | 0.33 | 0.30 |
--- | over 350 | 0.41 | 0.41 | |
Rectangular, not enclosed, for single dwelling units, with required clearance up to 12 mm | --- | 350 | 0.33 | 0.41 |
--- | over 350 | 0.41 | 0.48 | |
Rectangular, not enclosed, with required clearance of more than 12 mm | --- | 350 | 0.41 | 0.41 |
--- | over 350 | 0.48 | 0.48 | |
Provenance
OBC 1997 · continues from 6.2.4.2. — Pro
Base · O. Reg. 350/06 · ext← current
Original — base regulation
OBC 2012 · continues as 6.2.4.2. — Pro