National Energy Code for Buildings (NECB)

The NECB became mandatory on November 1, 2016. As of December 1, 2019, new buildings must meet the requirements of NECB 2017. Meeting the NECB 2017 will help to ensure a high level of energy efficiency in new buildings, save on energy bills, reduce peak energy demand and improve the quality and comfort of your building’s environment.

Incorporating energy efficiency measures into a building during the design and construction stage is more cost-effective than retrofit later. NECB focuses on five key building elements typically considered during the design phase: 

  1. Building envelope
  2. Lighting
  3. Heating, ventilation and air conditioning (HVAC)
  4. Service water heating
  5. Electricalcal power systems and motors

Compliance Paths:

The following paths are available under NECB to demonstrate compliance with Code:

Prescriptive Path – follows the prescriptive requirements of each section of the code. You may be required to submit a checklist as part of your building permit application. This path is rarely used for new buildings as the building envelope requirements make this path nNaot economically viable. Tenant improvement may need to meet prescriptive requirements for lighting and HVAC.

Trade-off Path – provides some flexibility by allowing certain elements within the same part of the code to be traded. 

Performance Path – also known as NECB Part 8, the Performance Path offers the most design flexibility. The proposed building must demonstrate that it will not consume more energy than an equivalent building built to prescriptive requirements of the Code. For this path, a building energy simulation tool compliant with ANSI/ASHRAE 140 “Evaluation of Building Energy Analysis Computer Programs” must be used. Both of the modelling programs we use meet these criteria.

HAP and eQUEST are the typical energy modelling software that we use to complete energy evaluations for Part 8 compliance. Included in our modelling fee are the reference model, the proposed model, and consultation, if required, to assist with ensuring code compliance and meeting the required energy performance. 

To complete the NECB code compliance model, we will require the following:

  • Building plans
  • Equipment specifications including the following:
    • Window details
    • Mechanical systems
    • Wall construction type
    • Orientation of the building
    • Foundation construction details
    • Roof construction details

The details required are typically found on architectural, mechanical, electrical, and sometimes structural drawings.

Contact us to find out more on how to meet NECB compliance.