Built Better Series: Airtightness for Roofs and Decks in Part 9 Homes

Event date: September 24, 2019
Showtime: 8 a.m. - 5 p.m.
Location: Sheraton Vancouver Guildford Hotel, 15269 104 Ave, Surrey
8 CPDs



In partnership with FortisBC and CHBA Fraser Valley, we are thrilled to announce the first of a four-part series of workshops focused on airtightness. 


  • A holistic perspective towards the overall satisfactory performance of the building envelope as far as airtightness is concerned.
  • Various methods of improving air tightness in wood-framed buildings.
  • Air barrier selection process with the focus on improving thermal comfort, energy efficiency, moisture management, long-term performance, adaptability to future repair and renovation.
  • Effective air barrier detailing at the intersection between various building envelope assemblies as well as around penetrations.
Who Should Attend

Builders and their on-site teams, trades, energy advisors, consultants, building inspectors, municipal building departments


  • Hamid Heidarali, P. Eng

    Hamid Heidarali has a strong passion for high performance, durable buildings that minimize their impact on the environment, while providing a superior experience for their occupants. Having worked as a building science consultant on a wide range of projects over the past 15 years in Canada has provided him with valuable insight into building envelope issues and practical solutions.

    Hamid holds Professional Engineering designation in Ontario and British Columbia, a LEED Accredited Professional in Canada, and a certified Passive House Tradesperson through Germany. He received his Master of Engineering in Building Science and Construction Management, and his Bachelor of Science in Civil Engineering.

    Hamid is a principal at HDB, a building science consulting firm based in Vancouver, Canada. He is a part-time instructor and faculty at the British Columbia Institute of Technology (BCIT), and teaches building envelope courses to Masters Students as part of the Building Science Graduate Program. He also offers interactive workshops to construction professionals on a regular basis.