OBC Updates Include Energy Performance Changes

March 5th, 2012 by DWM Magazine

The 2006 Ontario Building Code (OBC) was updated on January 1, 2012, with changes that include the introduction of the Supplementary Standard SB-12. This revises the energy performance requirements for Part 9 buildings in the 2006 OBC. SB-12 introduced three possible methods of proving compliance with the energy performance requirement of the 2006 OBC. The three methods include:

• Prescriptive Compliance Packages (Subsection 2.1.1);

• Performance Compliance (Subsection 2.1.2), and

• Other Acceptable Compliance Methods (Subsection 2.1.3).

According to an announcement issued by Fenestration Canada (FC), these changes represent a significant change to the OBC and the guide is meant to help clarify the changes for fenestration performance.

FC’s Technical, Education and Government Relations Committees have worked together to create a training presentation designed to provide unbiased information to educate building code officials and related groups on specification issues related to fenestration products. It will soon be made available for use and reference by members on the FC website.

The presentation has three sections, the first of which covers the National Building Code 2010. Included in this component is an overview of the code sections concerning doors, windows and skylights, reference to NAFS in the 2010 NBC and what is covered under the NBC. Section two explains what NAFS is, how it is different from CSA, the new performance ratings, an explanation of the Canadian supplement to NAFS and what the new labeling requirements are. A third section discusses how the performance requirements for fenestration products are determined, including determining DP, water and Canadian resistance requirements.

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