Both high- and low-permeance exterior insulation can improve energy efficiency and durability. At the same time, each must be used appropriately to avoid moisture-related issues such as mold. In this presentation, Jonathan Smegal will look specifically at water vapor – how different wall assemblies handle it and how to avoid potential problems in different climate zones. For high-permeance insulation (i.e., mineral wool), the main concern is inward vapor drive; for low-permeance insulation (e.g., XPS, foil-faced polyiso), the concern is trapping water against wood sheathing. Discussion will include examples of current research, specific design details, and building code requirements
Presenter: Jonathan Smegal
- Cost for this event is $25/person. This includes any certificates or continuing education credits (please note that webcast pricing is different and an additional charge may apply if you switch to the webcast)
- Space is limited (wait list will be maintained)
- Parking is available in front of the building
- Presentation time is 1.5 hours. This presentation can be used for 1.5 OAA structured learning hours and is approved for 1.5 AIA LU/HSW credits.
- Tours and mingling start at 5:00pm; refreshments are served at 5:30; presentation begins at 5:45 and goes to approximately 7:15
Note: This live event will also be webcast. If you want to attend in person, you are on the right page. If you want to register for the webcast, please go to the webcast page.
What are LAB Events?
Learning About Building Science (LAB) Events are monthly training and networking opportunities hosted by RDH Building Science Laboratories. They are interactive, informative, casual events for architects, engineers, and anyone interested in building science. We hope to see you there!
RDH Building Science Laboratories
167 Lexington Court, Unit 6
Waterloo, Ontario, Canada, N2J 4R9
Phone: (519) 342.4731
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Building Science Laboratories
Building Science Laboratories, a division of RDH Building Science Inc., is committed to expanding building science knowledge through research, education, and collaboration among building science professionals. By promoting sound principles established through research, while working with on-the-ground industry partners, we aim to have a lasting impact on the quality and energy efficiency of the built environment.