National Building Code of Canada 2020
The National Building Code of Canada (NBC) 2020, developed by the Canadian Commission on Building and Fire Codes and published by the National Research Council of Canada, sets out technical requirements for the design and construction of new buildings, as well as the alteration, change of use and demolition of existing buildings.
Over 280 technical changes have been incorporated in this new edition, improving the level of safety, health, accessibility, fire and structural protection, and energy efficiency provided by the Code, and expanding the NBC into new areas.
Significant changes in the NBC 2020
- Technical requirements for large farm buildings are added, which address fire protection, occupant safety, structural design, and heating, ventilating and air-conditioning.
- Encapsulated mass timber construction is introduced, enabling the construction of wood buildings with up to 12 storeys.
- Accessibility requirements are updated to reduce barriers related to anthropometrics, plumbing facilities, signage, entrances and elevators.
- Design requirements for evaporative equipment are revised to minimize the growth and transmission of Legionella and other bacteria.
- A home-type care occupancy is introduced to allow safe and affordable care in a home-type setting.
- Energy performance tiers are established to provide a framework for achieving higher levels of energy efficiency in housing and small buildings.
The National Building Code of Canada 2020 (NBC), together with the National Plumbing Code of Canada 2020 (NPC), the National Fire Code of Canada 2020 (NFC) and the National Energy Code of Canada for Buildings 2020 (NECB), has been developed by the Canadian Commission on Building and Fire Codes (CCBFC) as an objective-based national model code that can be adopted by provincial and territorial governments.
In Canada, provincial and territorial governments have the authority to enact legislation that regulates building design and construction within their jurisdictions. This may involve the adoption of the NBC without change or with modifications to suit local needs, and the enactment of other laws and regulations regarding building design and construction, including requirements for professional involvement.
The NBC is a model code in the sense that it helps promote consistency among provincial and territorial building codes. Persons involved in the design or construction of a building should consult the provincial or territorial jurisdiction concerned to find out which building code is applicable.
This edition of the NBC succeeds the 2015 edition.
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