Energy efficiency – buildings

Question 1:

What is the National Energy Code of Canada for Buildings 2011?

Answer to question 1:

The National Energy Code of Canada for Buildings 2011 (NECB) is one of several National Model Construction Codes published by the National Research Council of Canada (NRC). The 2011 NECB replaces the Model National Energy Code of Canada for Buildings 1997 (MNECB). As with other Codes, it was developed by the Canadian Commission on Building and Fire Codes (CCBFC), an independent committee of volunteers established by NRC, and published by NRC. The 2011 NECB is a model for provincial and territorial regulations and must be adopted by an authority having jurisdiction to come into effect. In some cases, it may be amended and/or supplemented to suit regional needs, and then published as a provincial Code.

Question 2:

How was the 2011 NECB developed?

Answer to question 2:

The 2011 NECB is the result of an extensive consultation process involving stakeholders from multiple levels of government (federal, provincial, territorial and municipal), the construction industry, and the general public. It was developed by the CCBFC, with technical support and funding provided by NRC and Natural Resources Canada as part of its commitment to improving the energy efficiency of Canadian buildings and reducing greenhouse gas emissions.

Question 3:

What’s new in the 2011 NECB?

Answer to question 3:

The 2011 NECB contains close to 245 technical changes to address a host of issues and accommodate the many new technologies and construction practices that have emerged in Canada since 1997. It is an objective-based code, the same format as the other National Model Construction Codes. This format offers compliance flexibility, which means that engineers, architects and designers can follow multiple paths to ensure that their proposed building designs are compliant.

Question 4:

What performance improvement can I expect in using the 2011 NECB?

Answer to question 4:

Generally speaking, the 2011 NECB is 26% more energy efficient than the 1997 MNECB and fulfills the energy code performance target expressed by federal, provincial and territorial government leaders. This result is a weighted average for the whole country and is based on many factors, including the energy performance level from which a region started. Its impact will be less in regions where energy efficiency construction practice is already higher than that specified in the MNECB and greater for those starting from a lower energy efficiency performance.

Question 5:

What is the scope of the 2011 NECB? Is there going to be an energy code for houses as well as for buildings?

Answer to question 5:

The 2011 NECB applies to all buildings in Part 3 of the National Building Code of Canada 2010 (NBC). There will no longer be a National Energy Code for Houses. Instead, energy efficiency requirements for small buildings and houses have been incorporated into a new section of Part 9 of the 2010 NBC and were published as interim change to that Code in December 2012.

Date modified: