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WEBINAR: Toward Safe and Natural High Performance Building Enclosures

September 20 @ 1:00 pm - 2:00 pm


Register below to join us on September 20 @ 10am PST / 1pm EST

VermontNaturalStrawBaleThere is a growing demand for building materials that meet low-energy goals while maintaining the health, safety, and wellness of building occupants for the life the building. Many products going into high performance and Passive House buildings today are falling short: particularly spray foam. Foam has come to dominate high performance building by claiming a high insulating value, air tightness, and vapor control all in one product. When practitioners are seeking more environmentally friendly alternatives, they are often left scratching their heads about the options, the details, and the possible results.

WUFIsafeThis presentation will cover the basic building science of high performance enclosures. A wide range of material options such as wood fiberboard, sheathings, membranes, mineral wool, straw bale, cellulose and other insulations will be considered. Airtightness goals will be analyzed, looking at ground, wall, and roof conditions as well as the design, construction, and testing of the assemblies.

The presentation will demonstrate that one can achieve higher performance, greater sustainability, resilience, and building health without foam. We also show how to do it with practical examples, details, and assemblies that make sense.

Learning Objectives:  Upon completion participants will be able to:

  1. Participants will become familiar with the broad code and policy issues that can support progress toward net zero buildings.
  2. Participants will be able to outline options for making building enclosures of more natural materials.
  3. Participants will be able to describe common challenges regarding material
    selection and assembly.
  4. Participants will be able to formulate a variety of more safe and natural high-performance strategies that are appropriate to the Pacific Northwest context.

GutexOnTheRoof377BuildersWho Should Attend:

  • Architects
  • Facade/Enclosure Consultants
  • Designers
  • Builders
  • Building Science Consultants
  • Air sealing contractors
  • Insulation contractors

As we move towards healthy and durable high performance, foam-based insulations, such as spray foam or XPS, present a major challenge. They are often toxic, have high Global Warming Potential (GWP), and tend to fail quickly as an air barrier. Even worse, once foam has failed as an air barrier, it tends to create accelerated rot and mold causing major building failures. The mission of 475 is to provide extremely durable airtightness using healthy, safe, and low-environmental impact materials that are cost-competitive upfront with conventional solutions. Join us for a discussion that will cover how to deliver the lowest-liability yet highest-performance buildings.

Register below by adding one ticket to your cart. Checkout will be free. One ticket per attendee. A link to the webinar will be sent to the email address provided at the checkout on the morning of September 20th.


September 20
1:00 pm - 2:00 pm


475 High Performance Building Supply