Part 9: Housing and Small Buildings
Subsection 9.3.1. - Concrete
New
The standard for the strength and water cement ratio of delivered concrete has now been updated to the 2014 edition, CSA A23.1-14, “Concrete Materials and Methods of Concrete Construction”.
Article 9.6.1.3. - Structural Sufficiency of Glass
New
This Article now provides that glass must be designed in conformance with Article 4.3.6.1., which provides a new option to use a newly referenced standard regarding the structural sufficiency of glass, ASTM E 1300, “Standard Method for Determining Load Resistance Glass in Buildings”.
In addition, Sentence 9.6.1.3.(2) has been changed to incorporate tables for structural glass design, which were previously located in the appendices of the Code.
Article 9.9.11.2. - Visibility of Exits
New
A new Sentence has been added to require signs to be posted at exterior exit doors that may be subject to obstructions, such as storage or parking.
Article 9.9.11.3. - Exit Signs
New
This Article has been revised to reflect editorial changes related to the referenced standards.
Article 9.10.13.14. - Fire Stop Flaps
New
This Article has been revised to reference CAN/ULC-S112.2, “Standard Method of Fire Test of Ceiling Fire Stop Flap Assemblies”.
Article 9.10.16.1. - Required Fire Blocks in Concealed Spaces
New
This Article has been revised to introduce a new fire blocking design criteria regarding unsprinklered concealed spaces.
Article 9.10.17.10.(2) - Protection of Foamed Plastics
New
A new Sentence was added to require protection measures for walk-in coolers or freezers consisting of factory assembled walls, floors and ceiling panels containing foamed plastic insulation.
Article 9.10.18.10. - Commissioning of Life Safety and Fire Protection Systems
New
This Article was amended to reference CAN/ULC-S1001,“Standard for integrated Systems Testing of Fire Protection and Life Safety Systems”, where two or more fire protection or life safety systems are integrated.
Article 9.10.19.1. - Required Smoke Alarms
New
This Article has been revised to require smoke alarms in shared means of egress and common areas in a house.
Article 9.10.19.8. - Residential Fire Warning Systems
New
A new Article was added to reference CAN/ULC-S540,“Standard for Residential Fire and Life Safety Warning Systems: Installation, Inspection, Testing and Maintenance” as an option to the currently required interconnected smoke alarms.
Article 9.10.22.2. - Vertical Clearances above Cooktops
Deletion
This Article has been revised to remove the reference to “asbestos millboard”.
Section 9.11. - Sound Transmission
New
A new metric called apparent sound transmission class (ASTC), is introduced in order to consider indirect (flanking) sound transmission. This is an alternative rating that can be used to meet the sound transmission requirements of the Building Code.
Article 9.13.2.2. - Dampproofing Materials and Article 9.13.3.2. - Waterproofing Materials
New
These Articles have been revised to update the reference standards for dampproofing and waterproofing materials.
Article 9.14.3.1. - Material Standards
New
This Article has been revised to delete the reference standard for asbestos-cement drain pipes.
Article 9.15.1.3. - Foundations for Deformation Resistant Buildings
New
The Article has been revised to update the standard for site preparation, foundation and installation of buildings.
Article 9.15.2.4. - Wood Frame Foundation
New
The Article has been revised to update the standard for permanent wood foundations for housing and small buildings.
Article 9.15.5.1.(1) - Support of Floor Joists
New
This Sentence has been amended to include definitions related to masonry terminology, which are “solid masonry”, and “solid masonry unit”.
Article 9.15.5.3. - Pilasters
New
This Article has been amended to include the newly defined term, “solid masonry”.
Article 9.16.5.1. - Wood Floors
New
The Article has been revised to update the standard for permanent wood foundations for housing and small buildings.
Article 9.20.2.1. - Masonry Unit Standards
New
This Article has been revised to update the masonry unit material standards, which have been replaced with current applicable standards.
Article 9.20.4.2. - Masonry Units
New
Previously, the requirements related to mortar joints for solid masonry units and hollow masonry units were addressed under separate Articles. They have now been combined under the new Article 9.20.4.2.
Article 9.20.6.5. - Parapet walls
New
A new Sentence was added to address semi-solid or hollow masonry units used in parapet walls.
Article 9.20.8.2. - Cavity Walls Supporting Frame Members
New
This Article has been rewritten to add the newly defined term, “solid masonry units".
Article 9.20.8.5. - Projection of Masonry Veneer beyond Supporting Members
New
The Article has been updated to remove reference to hollow masonry units and has been replaced with the newly defined term “solid masonry units”. In addition, the term "width" was changed to "thickness".
Article 9.23.6.3. - Anchorage of Smaller Buildings
New
The Article has been revised to update the standard for site preparation, foundation and installation of buildings.
Article 9.23.15.7. - Thickness or Rating of Roof Sheathing
New
The Article has been revised to update a standard for wood fibre insulating boards for buildings.
Article 9.23.16.2. - Thickness, Rating and Material Standards for Sheathing
New
The Article has been revised to update the standards listed in Table 9.23.16.2.A. “Wall Sheathing Thickness and Specifications”.
Article 9.25.2.2. - Insulation Materials
New
This Article has been revised to update the referenced insulation material standards.
Article 9.25.5.1.(4) - Low Permeance Materials
New
A new Sentence was added under this article to allow certain materials to be installed outboard of an exterior assembly.
Article 9.26.1.1. and Article 9.26.1.1.A. - Roofing
New
Article 9.26.1.1. has been revised to define the terms “roof” and “roofing”. A new Article 9.26.1.1.A. has also been added to address what kind of performance is expected from roofs and how to demonstrate compliance.
Article 9.26.2.1. - Roofing Material Standards
New
This Article has been revised to update the reference standards for roofing materials.
Article 9.26.2.2. - Installation of Materials
New
A new Article has been added to state that roofing materials shall be installed as per the manufacturer's instructions.
Article 9.27.5.1. - Attachment of Cladding
Deletion
This Article has been revised to remove the reference to asbestos-cement shingles.
Article 9.27.8.1. - Plywood Material Standards
New
This Article has been revised to replace an outdated standard for hardwood and decorative plywood with a more up-to-date industry-supported standard.
Article 9.29.8.1. - Insulating Fibreboard Finish Material Standard
New
The referenced standard under this Article has been updated to reflect the latest edition of the Underwriters’ Laboratories of Canada (ULC) standard.
Article 9.32.1.4. - Venting of Laundry-Drying Equipment
New
A new Article has been introduced to establish detailed requirements for the venting of laundry-drying equipment to the outdoors.
Article 9.32.3.9. - Fan Ratings
New
The title of the referenced HVI 915 standard has been updated.
Article 9.34.4.1. - Electric Vehicle Charging Stations
Deletion
The electric vehicle charging provisions under the 2012 Building Code have been deleted.
This change came into effect on May 2, 2019.
Article 9.35.3.1. - Foundation Required
New
This Article has been amended to include an additional foundation option.
Article 9.35.3.3. - Drainage
New
This Article has been revised to exempt small garages meeting the drainage requirements under certain circumstances.