229: Building Airtight Homes with Barry Cope

In this episode of the Passive House Podcast, we welcome Barry Cope, Group Managing Director of the Building Compliance Testers Association (BCTA). Barry shares insights into airtightness testing, certification, and how the UK became a leader in 100% blower door testing for new buildings. He discusses the role of ATTMA, the evolution of the industry, and how airtightness impacts building performance, moisture control, and energy efficiency.  The Building Performance Hub: https://www.bcta.group/tbph/ The Building Performance Hub Podcast: https://www.bcta.group/tbph/tbph-podcasts/