CodeChronicle

OBC 2006 Division B

12.3.2.1.

Version 0 — in force 31 December 2006

In force
Verified · covered Verified against the 2006-12-31–2007-04-01 consolidation, whose range covers the query date. How to read this

Provenance

New in this edition — no OBC 1997 predecessor

Base · O. Reg. 350/06 · ext← current

Original — base regulation

Content moved to SB-12, not yet covered

12.3.2.1. — Required Insulation

(1) All walls, ceilings, floors, windows and doors that separate heated space from unheated space, the exterior air or the exterior soil shall have thermal resistance ratings conforming to this Subsection.

(2) Insulation shall be provided between heated and unheated spaces and between heated spaces and the exterior, and around the perimeter of concrete slabs-on-ground.

(3) Reflective surfaces of insulating materials shall not be considered in calculating the thermal resistance of building assemblies.

(4) Except as permitted in Articles 12.3.2.3., 12.3.2.4., 12.3.2.6., 12.3.2.7. and 12.3.2.9., the minimum thermal resistance of insulation shall conform to Table 12.3.2.1.

Editor's note

Table 12.3.2.1. and its note are reproduced here as filed in O. Reg. 350/06. The consolidated e-Laws text applies editorial formatting changes that were not enacted by any regulation; this map preserves the text as filed. The differences are: the table title reads "Minimum Thermal Resistance of Insulation to be Installed Based on Degree-Day Zones(1)" as filed, to which e-Laws adds a space before the footnote marker ("Zones (1)"); the notes heading "Notes to Table 12.3.2.1:" is in regular weight as filed and is rendered in bold on e-Laws, which also adds a trailing period to the table number ("12.3.2.1."); and the note marker "(1)" is plain text as filed and is rendered as a superscript on e-Laws.

Text · e-Laws consolidated snapshot

Table 12.3.2.1. Minimum Thermal Resistance of Insulation to be Installed Based on Degree-Day Zones(1) Forming Part of Sentence 12.3.2.1.(4)

Column 1

Column 2

Column 3

Column 4

Building Element Exposed to the Exterior or to Unheated Space

Minimum RSI Value Required

Zone 1

Zone 2

Electric

Less than 5000

5000 or more

Space Heating

degree-days

degree-days

Zones 1 & 2

Ceiling below attic or roof space

7.00

7.00

8.80

Roof assembly without attic or roof space

4.93

4.93

4.93

Wall other than foundation wall

3.34

4.22

5.10

Foundation walls enclosing heated space

2.11

2.11

3.34

Floor, other than slab-on-ground

4.40

4.40

4.40

Slab-on-ground containing heating pipes, tubes, ducts or cables

1.76

1.76

1.76

Slab-on-ground not containing heating pipes, tubes, ducts or cables

1.41

1.41

1.76

Basement floor slabs located more than 600 mm below grade

Notes to Table 12.3.2.1:

(1) Number of degree-days for individual locations are contained in Supplementary Standard SB-1.