In this episode of the pro clima Podcast, Barry shares with Simon his journey from studying engineering to transitioning into airtightness testing with ATTMA (Air Tightness Testing & Measurement Association) where he has worked for 10 years. Simon and Barry discuss the process of Blower Door testing and emphasise the importance of airtightness testing for energy efficiency, citing that homes with improved airtightness can achieve up to 35% energy savings for heating alone. Barry talks about the future of airtightness testing, and how he predicts there to be a shift in the way we test for airtightness, instead he predicted we would be using ‘actual energy usage’ metrics rather than predictive models for evaluating building performance, leading to higher energy efficiency standards. Throughout the podcast, he shares valuable insights into the importance of airtightness in buildings and the effects on energy efficiency in your home. He encourages others to consider the growing global importance of energy efficiency and sustainable building practices. “You can make even a 20% reduction in the amount of energy you use. That adds up over 10 years.” Special Guest: Barry Cope.