Unpacking the Layers: Air Barriers, Vapour Barriers & WRBs
Join us for our upcoming Lunch & Learn where we’ll dig into the essential—but often misunderstood—layers of the building envelope: air barriers, vapour barriers, and weather-resistive barriers (WRBs). We’ll break down the differences between them, explore their roles in managing moisture, and look at how they fit into Part 9 prescriptive requirements. This session is designed to give building officials practical clarity on where these barriers belong, how they interact, and what to look for in the field.
As always, feel free so send your questions in ahead of time to twarner@boabc.org
Date: September 25, 2025
Time: 12:00 to 1:00 PM (PST)
Member Registration: Via Member Portal – Webinars
CPD Eligibility: 1 point – Category A4 (automatically uploaded when you register)
