Proposed Change 1721

The use of the defined term "occupancy" in Sentences 2.2.1.1.(2) and 2.2.2.1.(2) of Division C of the National Energy Code of Canada for Buildings (NECB) is causing confusion among Code users. The intent of the NECB is to describe the intended use of a space within a building or part of a building to provide energy use requirements. 

The NECB also uses building or space types to describe the intended use of a building or part of a building for the purposes of providing energy use requirements.

Failing to clarify the terminology would lead to varying interpretations among Code users, which would lead to an inconsistent application of the Code and affect the degree of conformance across the country.

To avoid confusion and misinterpretation, the defined term "occupancy" should be removed from the NECB provisions that aim to provide energy use requirements.

Removing the defined term "occupancy" would clarify for Code users that energy use requirements, such as those for lighting, may change as the intended use of the space changes (e.g., from retail area to warehouse), although the occupancy classification (e.g., mercantile occupancy) does not change. 

This proposed change has no cost implications since the new term clarifies that the NECB requirements apply regardless of the type of occupancy.

This proposed change can be enforced by the current infrastructure without requiring further training.

Designers, engineers, builders, energy advisors and building officials.