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Passive House Design for Mass Timber and Wood-Frame Multi-Family Projects

March 9, 2022 @ 12:00 pm - 1:00 pm CST

  • Online
Orchards at Orenco
National Online Education.

This event will provide insights into the implementation of passive house design techniques on multi-family, mid-rise projects in the US.

What is passive house design and why is it a good fit for multi-family projects? How can the use of mass timber and light wood-frame structural wall and roof framing materials influence and benefit a project’s energy performance? What are the critical building enclosure assemblies and details that establish passive house levels of energy use reduction? How do site orientation and mechanical heat recovery and air ventilation factor in? And perhaps the biggest question on everyone’s mind: Does passive house design result in significant cost premiums over traditional approaches, or is it a small cost increase, which can be quickly repaid once the building is operational?

The team that designed the all-mass timber 201 Hampden in Boston will highlight the use of CLT as exterior wall and roof panels, and the impact this had on enclosure design and passive house performance. The architect for the light wood-frame Orchards at Orenco, Phases I and II, one of the largest certified passive house buildings in North America, will also discuss enclosure detailing, challenges, and lessons learned on these projects.


  • Michael Bonn, Ankrom Moisan
  • Evan Smith, Placetailor
  • Liz Hauver, Placetailor


CEU Credit Information:

  • Attendees can Earn 1.0 AIA/CES HSW LUs, 1.0 PDH credits or 0.1 ICC credits
  • WoodWorks will send each attendee a certificate of completion within 2 weeks via email.
  • Please note that to receive a certificate, attendees must stay for the duration of the event.


For questions or additional information, please contact:

LeeAnn Charpentier | WoodWorks
Ph: 301-633-0330


Photo Credit: Orchards at Orenco / Ankrom Moisan Architects / photo Ankrom Moisan Architects