Non-Member Cost :




25% off for CHBA BC members – learn more here

CPD Points:


BC Housing Competency Area:

Construction Technology

Time Commitment:

7 hours

Delivery Method:


Course Description

The existing low-rise residential building stock in BC represents a significant amount of energy consumption compared to newly built residences. This new training course specifically focuses on the limitations and challenges contractors face when undertaking enclosure retrofits on existing homes. Contrary to new builds, retrofits come with many challenges from unknowns, including as-built products and materials, occupied conditions, phasing limitations, and existing structural configurations. These challenges must be met with creativity, adaptation, and a strong knowledge of best-practice retrofit solutions.

While building science fundamentals and best practice design concepts don’t change between new buildings and enclosure retrofits on existing buildings, how retrofit contractors apply these concepts to maintain long-term durability and safety for occupants can be very different.

Throughout this one-day hands-on training course, low-rise residential contractors and other industry professionals interested in exterior building enclosure retrofits will:

  • Gain hands-on experience with high-performance air and water barrier membrane installation and detailing known to improve energy efficiency, increase moisture durability, and manage installation costs.
  • Gain fundamental knowledge in evaluating the risks and benefits of common retrofit options, including when phasing must occur, adapting to existing assemblies using modern retrofit products and detailing, and implementing best practice high-performance enclosure retrofits without compromising the integrity of the existing building.
  • Learn cutting-edge, high-performance detailing approaches that can accommodate common existing residential conditions.
    This new course will be an interactive hands-on training that uses tabletop mock-ups, 3D graphics, and an open, interactive dialogue led by RDH Building Science professionals.

Spots are limited for hands-on engagement. All tools and materials required for hands-on training will be provided. Register today!

Course Format

This in-person course requires successful completion of the following components:

  • Attendance for the full duration of the in-person session
  • Spots are limited for hands-on engagement

Course Material

There is no textbook for this session. All course materials are contained within the presentation during the in-person session.

All tools and materials required for hands-on training activities will be provided.

Meet the Speaker

James Bourget | Dipl. T. (ABET), RRO

Principal, Construction Specialist
RDH Building Science Inc.

James' project work includes large wall, window, and roof rehabilitation projects for residential, commercial, and institutional owners. He has expertise in the investigation, design, and field review of more complex roof renewal or replacement projects. He typically manages several rehabilitation projects at any point in time. James’ building science training and hands-on experience with many aspects of building enclosure construction make him an invaluable resource at RDH.

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Meet the Speaker

James Higgins | AScT

Associate, Building Science Technologist
RDH Building Science Inc.

James works across several groups at RDH, from research and investigation with the Building Science Labs team, to building enclosure design and construction field review in the Building Enclosure Engineering group. As a leading member of the Labs team, James takes an active role in industry education, from presentations and webinars to hands-on training. James has co-authored numerous technical guides and research documents that are widely used in the building science industry, including the Building Enclosure Design Guide and the BC Energy Step Code Builder Guide.

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Register Interest (No Dates Available)

This course currently does not have any dates being offered. If you would like to be added to a waitlist to be notified once new dates are added, please submit this form and we will contact you once new information is available.

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