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Ontario s 2012 Building Code Division B, Part 9 (Ontario Regulation 332/12) - PDF
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Clare Ella Robertson
1 Ontario s 2012 Building Code Division B, Part 9 (Ontario Regulation 332/12)
2 Notice: This e-learning module is intended for general information purposes only. It only highlights certain provisions of the 2012 Building Code. Code users are advised to consult the source documents, including: The Building Code Act, 1992; and The 2012 Building Code (O. Reg. 332/12) These documents are available from: e-laws (official versions of the Act and Code) Publications Ontario sells a compendium (Act, Code and additional materials)
3 Overview Division B, Part 9 LEGEND Symbol Denotes - Revision - Moved/incorporated - New/expanded - Deletion {2006} (5) Building Code Reference
4 Radon: Division B (1) The Radon 222 threshold has been reduced from 250 to 200 becquerels per m 3 in designated areas
5 (1) General: Concrete construction for housing and small buildings: CSA A withdrawn Incorporated in CSA A23.1
6 (4) Termite and Decay Protection: Former Article relocated to Article
7 (6) Termite and Decay Protection: Former Sentence (5) renumbered, revised and expanded to reference Table 2 Use Categories for Specific Products, Uses, and Exposures of the CAN/CSA-O80.1 standard
8 (1) Attics and Roof Spaces: Loading requirements for ceiling joists or truss bottom chords in residential attics and roof spaces have been revised
9 9.5., 9.6., and 9.7. New North American fenestration standard for windows, doors and skylights (AAMA/WDMA/CSA 101/I.S.2/A440) have been introduced
10 , Doors to Rooms Containing Water Closets (Article ): Requirements for doors to rooms containing water closets in dwelling units Entrance Doors (Article ): Requirements for entrance doors to dwelling units
11 Doorway Sizes: New Subsection added: Doorway Opening Sizes Doors to Public Water Closet Rooms Doors to Bathrooms
12 {2006} , , Provisions for sliding doors, air infiltration of patio type sliding doors relocated: (1) (1) (1) (4)(b) (1) (1)(c)
13 Glass: Division B 9.6. New Section 9.6. consolidates requirements for glass: Application Material Standards Structural Sufficiency Types and Protection
14 Application: Division B (2) & (3) For the purpose of Section 9.7., skylight and doors defined to mean: skylight refers to unit skylights, roof windows and tubular daylighting devices doors includes glazing in doors and sidelights for doors
15 Other Requirements for Windows, Doors and Skylights: Refers to requirements found elsewhere in Part 9 for windows, doors and skylights, including: ventilation means of egress access to a building protection of windows flame-spread rating for doors
16 General Performance Criteria: Sets criteria for windows, doors and skylights when in the closed position, including: Resist rain ingress Resist wind loads Control air leakage Resist ingress of insects and vermin Resistance to forced entry Easily operable, unless fixed units
17 Heat Transfer Performance: Sets requirements to control condensation on windows, doors and skylights and ensure comfortable conditions for the occupants
18 & Table Thermal Characteristics of Windows, Doors and Skylights: Maximum thermal transmittance (U-value) or minimum temperature index (I) for windows, doors and skylights have been introduced
19 & Manufactured and Site-Built Windows, Doors and Skylights: New Subsections added with requirements for manufactured and site-built windows, doors and skylights
20 Sealants, Trim and Flashing: Sealants, trim and flashing requirements for windows, skylights and doors have been consolidated in this new Article
21 Stairs, Ramps, Landings, Handrails and Guards in Garages: Requirements for stairs, ramps, landings, handrails and guards within dwelling units have been extended to garages serving single dwelling units
22 Stair Width: Division B (3) Width requirements for exit stairs and public stairs in buildings other than residential have been added: Based on 8 mm per person But not less than 900 mm
23 Height over Stairs: Division B Article amended to clarify how the clear height over stairs is determined
24 Dimensions for Risers: Division B (1) Sentence revised to clarify how the vertical rise is measured
25 Table Rise, Run and Tread Depth for Rectangular Treads: Maximum rise, run and tread depth for public stairs have been revised - Table notes have also been amended 2012 {2006} Maximum Rise 180 mm {200 mm} Maximum Run No limit Maximum Tread Depth No limit {355 mm} {355 mm}
26 Dimensions for Rectangular Runs and Treads: Amended to clarify how the run of a step in a stair is measured
27 Uniformity and Tolerances for Risers and Treads: Tolerances for risers and treads amended Between adjacent treads and landings Between tallest and shortest riser in flight 2012 {2006} 5 mm {6 mm} 10 mm {6 mm}
28 (5) Uniformity and Tolerances for Risers and Treads: Permissible tread slope amended to limit the surface slope to 1 in 50 in all directions
29 Ramp Widths: Ramp widths amended: Division B {2006} Serving more than one dwelling unit 900 mm {860 mm} Exit Ramp serving other than residential occupancy 900 mm, or 8 mm/person 900 mm, or 8 mm/person {900 mm} {900 mm}
30 Dimensions of Landings: Requirements in Table amended and limits for landing slope introduced
31 Required Handrails: Division B Handrail requirements summarized in Table and requirements for handrails on ramps amended
32 Height of Handrails: Division B Amended to clarify how the height of handrails on stairs and ramps is measured and to increase their minimum height
33 Height of Handrails: Division B (4) Introduces exemptions for non-required additional handrails
34 Required Guards: Division B Requirements for guards now includes protection requirements for windows and glazing
35 Height of Guards: Division B Amended to clarify how the height of guards on stairs and landings is measured and to increase their minimum height
36 Height of Guards: Division B (6) Introduces new guard requirement for stairs and landings more than 10 m above adjacent ground
37 (2) Guards for Floors and Ramps in Garages: New Sentence introducing design load requirements for vehicle guardrails
38 The 2006 Building Code s prescriptive parameters for guards to not facilitate climbing have been removed
39 Shared Egress Facilities: Division B Shared means of egress for dwelling units amended to include ramps
40 Egress Windows or Doors for Bedrooms: Requirements for windows or doors on floor levels with bedrooms have been relocated from Section 9.7. of the 2006 Building Code
41 Signs: Division B Requirements for signs have been relocated from Subsection of the 2006 Building Code
42 Exit Signs: New requirements for exit signs: ISO green pictogram ISO 7010 directional symbols CSA 22.2 #141 for internally illuminated CAN/ULC-S572 for photoluminescent and self-luminous Continuous illumination when externally illuminated Only emergency lighting allowed on same circuit
43 Application: Division B (1) Lighting requirements amended to apply to all means of egress, except in dwelling units
44 (2) & (5) Required Lighting in Egress Facilities and Emergency Lighting: New minimum illumination levels: Average Illumination Minimum Illumination (NEW) Non-Emergency Lighting 50 lx 10 lx Emergency Lighting 10 lx 1 lx
45 Items Under Part 3 Jurisdiction: List of items under Part 3 jurisdiction expanded to include fire pumps
46 {2006} Removed since requirements for custodial and convalescent homes are set out in Part 3
47 Penetration of Fire Separations: Additional types of penetrations detailed: All penetrations in firewalls must have a fire stop with an FT rating Single conductor wire penetrations to be spaced at least 300 mm apart No size limit for combustible water distribution pipe penetrations when a fire stop is provided No fire stop required for sprinkler piping penetrations when an escutcheon plate is provided Fire dampers don t need a fire stop if installed as per NFPA 80 or are designed specifically with a fire stop
48 (3) Appliances and Equipment to be Located in a Service Room: Clarifies that cooking appliances don t need to be located in service rooms
49 {2006} Table Table of the 2006 Building Code and all references to it deleted
50 Fire Blocks: Division B References to fire stop(s) have been replaced with fire block(s)
51 Design and Installation Requirements: Clarifies which Part 3 requirements apply to the design and installation of fire alarm, fire detector and smoke detection devices and systems
52 (2) Rooms and Spaces Requiring Heat Detectors or Smoke Detectors: Clarifies where fire detectors are required
53 Central Vacuum Systems: Automatic shut down of central vacuum cleaning systems serving more than one suite or storey in a building equipped with a fire alarm system upon activation of the fire alarm system
54 Commissioning of Life Safety and Fire Protection Systems: Requirements for commissioning of life safety and fire protection systems have been added
55 Sound Patterns of Smoke Alarms: The sound patterns of smoke alarms are now required to meet the temporal patterns of alarm signals, or be a combination of temporal pattern and voice relay
56 Location of Smoke Alarms: Smoke alarms are now also required within each sleeping room of a dwelling unit
57 Power Supply: Division B (1) Smoke alarms are now required to be provided with a battery as an alternative power supply capable of providing power: For at least 7 days in normal condition; Followed by 4 minutes of alarm
58 (3) & (4) Power Supply: Smoke detectors are permitted instead of smoke alarms, if the smoke detectors: Form part of the fire alarm system; Are capable of independently sounding audible signals within individual suites; and Are installed in conformance with CAN/ULC-S524, but need not sound an alarm throughout the building if they sound localized alarms within individual suites
59 (2) Silencing of Smoke Alarms: Manual alarm silencing device not required when smoke detectors installed as part of a fire alarm system
60 Fire Protection for Gas, Propane and Electric Cooktops: Clarifies that clearances for combustible framing, finishes and cabinetry apply to cooktops
61 Moisture Protection for Interior Finishes: Interior moisture protection requirements for foundation walls have been clarified
62 Sump Pits: Division B (2)(b) Sump pit covers must now be sealed to maintain the continuity of the air barrier system
63 Foundation Walls: Division B Maximum unsupported height of foundation walls in Part 9 tables increased from 2.5 m to 3.0 m
64 Access: Division B Access requirements for attics and roof spaces containing a fuel-fired appliance have been introduced
65 (5) Fastening for Sheathing or Subflooring: Maximum spacing of fasteners set at 150 mm along edges and intermediate supports when supports are spaced more than 406 mm o.c.
66 Screws: Division B (1)(a) ASTM C954 standard for steel drill screws has been introduced
67 Table Steel Studs for Non-Loadbearing Interior Walls: Steel stud table amended and table note added for consistency with the current design standard CAN/CSA-S136
68 Scope and Application: Division B Section on heat transfer, air leakage and condensation control no longer limited to buildings of residential occupancy
69 (6) Vapour Barrier Materials: Requirements for insulation that functions as the vapour barrier introduced
70 (3) Installation of Vapour Barriers: Clarify location requirements for insulation used as a vapour barrier
71 Properties and Position of Materials in Building Envelope: Properties and position requirements for low permeance materials amended and relocated from Article of the 2006 Building Code
72 Starter Strip: Division B (2)(c) Pre-manufactured starter strips permitted under asphalt shingles
73 Sealants: Division B CGSB caulking standards replaced with ASTM sealant standards and backer rod requirements introduced
74 {2006} Asbestos-cement shingles and sheets removed from the Building Code
75 {2006} & Prescriptive ceramic tile requirements deleted
76 Required Water Supply: Division B Dwelling units are required to have a water distribution system when a drinking water system is available
77 Required Fixtures: Division B (1)(d) Drainless composting toilet option introduced for dwelling units
78 (3) Protection Against Depressurization: Make-up air not required for a subfloor radon depressurization system
79 Equipment Sizing: Division B (3) The method for determining residential indoor heating and cooling equipment capacity has been amended to require conformance with the CAN/CSA-F280 standard
80 Location of Carbon Monoxide Alarms: The term detector has been replaced with the term alarm and the manufacturer s recommended installation height has been added
81 Wiring and Cables: Division B (1) Introduces new fire safety requirements for optical fibre cables, electrical wiring and cables
82 Lighting of Entrances: Division B (2) Introduces new control requirements for exterior lighting for: Entrances serving multiple suites of residential occupancy Multiple dwelling unit entrances Hotels Motels
83 {2006} Electrical service entrance requirements have been removed from the Building Code
84 Tables A-1 to A-7 Maximum Spans: Member spacing in Tables changed: From To 300 mm mm 400 mm mm 600 mm mm
85 More Information Sign up for Code News Follow us on Twitter Buy the Building Code from ServiceOntario Publications or view on e-laws (O. Reg. 332/12) Contact your local municipality Contact us at or by dialling (TTY for the hearing impaired)
NRC Canadian Codes Centre. Codes Update. Nedjma Belrechid October 2012
NRC Canadian Codes Centre Codes Update Nedjma Belrechid October 2012 Codes Update Outline Activities of CCBFC, PTPACC, NRC-IRC Code Development Public Reviews Active/Inactive SC Tasks Detailed: Step Dimensions
EXISTING BUILDINGS AND STRUCTURES
EXISTING BUILDINGS AND STRUCTURES There are no margin bars shown in this chapter due to its substantial revision. SECTION AJ1 ADMINISTRATION SECTION AJ101 PURPOSE AND INTENT AJ101.1 Scope. The provisions