National Building Code of Canada 2010
Energy efficiency requirements for housing and small buildings that are less than 600 m2 in footprint and not more than three stories, excluding some industrial occupancies.
Applicable Building Type(s)
New residential, New non-residential, Existing residential, Existing non-residential
Policy Requirement Level
Model Code
Governance
Development Authority: Canadian Commission on Building and Fire Codes (CCBFC)
Implementation Authority: Adopting jurisdiction
Verification Authority: Adopting jurisdiction
Enforcement Authority: Adopting jurisdiction
Prescriptive Compliance path
Prescriptive requirements apply to building envelope components, heating ventilating and air conditioning equipment, and potable water heating equipment.
Energy Requirements:
Insulation
Building assemblies above ground:
U-Values (W/m2.K)
Floors
Roofs, Attic
Roofs, Other
Walls
Climate zone 4
0.214
0.145
0.214
0.360
Climate zone 5
0.214
0.115
0.214
0.325
Climate zone 6
0.214
0.115
0.214
0.325
Climate zone 7A
0.199
0.096
0.199
0.325
Climate zone 7B
0.199
0.096
0.199
0.385
Climate zone 8
0.199
0.096
0.199
0.385
Building assemblies in contact / below the ground:
U-Values (W/m2.K)
Floors, heated
Floors, above the frost lint
Roof
Walls
Climate zone 4
0.431
0.510
0.510
0.503
Climate zone 5
0.431
0.510
0.510
0.336
Climate zone 6
0.431
0.510
0.510
0.336
Climate zone 7A
0.352
0.510
0.269
0.289
Climate zone 7B
0.352
0.510
0.269
0.289
Climate zone 8
0.352
0.510
0.269
0.289
Windows
U-Values (W/m2.K)
Windows
Climate zone 4
1.8
Climate zone 5
1.8
Climate zone 6
1.6
Climate zone 7A
1.6
Climate zone 7B
1.4
Climate zone 8
1.4
Doors
U-Values (W/m2.K)
Doors
Climate zone 4
1.8
Climate zone 5
1.8
Climate zone 6
1.6
Climate zone 7A
1.6
Climate zone 7B
1.4
Climate zone 8
1.4
Skylights
Total skylight area shall be less than 5% of the gross roof area
U-Values (W/m2.K)
Skylights
Climate zone 4
2.9
Climate zone 5
2.9
Climate zone 6
2.7
Climate zone 7A
2.7
Climate zone 7B
2.4
Climate zone 8
2.4
Air Leakage
Prescriptive requirements list for sealing the building air barrier
End-uses considered:
Space cooling, Space heating, Water heating, Ventilation
Performance Compliance path
Energy Performance Compliance
Performance compliance calculations determines the annual energy consumption of a reference house and sets the minimum energy target for the proposed house to that level.
Energy Requirements:
Insulation
Reduction is limited by health and safety requirements.
Windows
Where fenestration and door to gross wall area is less than 17%, the reference house is set to 17%. Where fenestration and door to gross wall area is greater than 22%, the reference house is set to 22%.
Air Leakage
An assumed building airtightness of 2.5 air changes per hour (ACH) is applied to the reference house. The proposed can measure airtightness or use an assumed 2.5 ACH in the simulation.
Space Heating System
Reference house applies a prescriptive type system for the applicable fuel type
Space Cooling System
Reference house applies a prescriptive type system for the applicable fuel type
Water Heating System
Reference house applies a prescriptive type system for the applicable fuel type
Compliance Softwares:
All energy modelling software used for code compliance calculat
Applicable Building Type(s)
New residential, New non-residential, Existing residential, Existing non-residential
Policy Requirement Level
Model Code
Governance
Development Authority: Canadian Commission on Building and Fire Codes (CCBFC)
Implementation Authority: Adopting jurisdiction
Verification Authority: Adopting jurisdiction
Enforcement Authority: Adopting jurisdiction
Prescriptive Compliance path
Prescriptive requirements apply to building envelope components, heating ventilating and air conditioning equipment, and potable water heating equipment.
Energy Requirements:
Insulation
Building assemblies above ground:
U-Values (W/m2.K)
Floors
Roofs, Attic
Roofs, Other
Walls
Climate zone 4
0.214
0.145
0.214
0.360
Climate zone 5
0.214
0.115
0.214
0.325
Climate zone 6
0.214
0.115
0.214
0.325
Climate zone 7A
0.199
0.096
0.199
0.325
Climate zone 7B
0.199
0.096
0.199
0.385
Climate zone 8
0.199
0.096
0.199
0.385
Building assemblies in contact / below the ground:
U-Values (W/m2.K)
Floors, heated
Floors, above the frost lint
Roof
Walls
Climate zone 4
0.431
0.510
0.510
0.503
Climate zone 5
0.431
0.510
0.510
0.336
Climate zone 6
0.431
0.510
0.510
0.336
Climate zone 7A
0.352
0.510
0.269
0.289
Climate zone 7B
0.352
0.510
0.269
0.289
Climate zone 8
0.352
0.510
0.269
0.289
Windows
U-Values (W/m2.K)
Windows
Climate zone 4
1.8
Climate zone 5
1.8
Climate zone 6
1.6
Climate zone 7A
1.6
Climate zone 7B
1.4
Climate zone 8
1.4
Doors
U-Values (W/m2.K)
Doors
Climate zone 4
1.8
Climate zone 5
1.8
Climate zone 6
1.6
Climate zone 7A
1.6
Climate zone 7B
1.4
Climate zone 8
1.4
Skylights
Total skylight area shall be less than 5% of the gross roof area
U-Values (W/m2.K)
Skylights
Climate zone 4
2.9
Climate zone 5
2.9
Climate zone 6
2.7
Climate zone 7A
2.7
Climate zone 7B
2.4
Climate zone 8
2.4
Air Leakage
Prescriptive requirements list for sealing the building air barrier
End-uses considered:
Space cooling, Space heating, Water heating, Ventilation
Performance Compliance path
Energy Performance Compliance
Performance compliance calculations determines the annual energy consumption of a reference house and sets the minimum energy target for the proposed house to that level.
Energy Requirements:
Insulation
Reduction is limited by health and safety requirements.
Windows
Where fenestration and door to gross wall area is less than 17%, the reference house is set to 17%. Where fenestration and door to gross wall area is greater than 22%, the reference house is set to 22%.
Air Leakage
An assumed building airtightness of 2.5 air changes per hour (ACH) is applied to the reference house. The proposed can measure airtightness or use an assumed 2.5 ACH in the simulation.
Space Heating System
Reference house applies a prescriptive type system for the applicable fuel type
Space Cooling System
Reference house applies a prescriptive type system for the applicable fuel type
Water Heating System
Reference house applies a prescriptive type system for the applicable fuel type
Compliance Softwares:
All energy modelling software used for code compliance calculat
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