Send us a text In Episode 49 of The Sustainable Builders Yak, we’re joined by Joel Seagren, National Mechanical Ventilation Engineer at Fantech, to unpack the critical (and often overlooked) role of ventilation in high-performance homes. With a background in mechanical engineering, renewable energy, and a Master’s in building sustainability, Joel brings decades of experience to this conversation — from consulting on daylight modeling in the early 2000s to becoming a NatHERS assessor and champ...