Airtight Building Design Keeps Drafts Out Chilly winter drafts make December the perfect time to talk about airtight building design and energy efficiency. Peckham Architecture’s LEED Platinum home headquarters is sealed and insulated to the point of being airtight. Episode 7 of our Green Building series shows the phenomenal results our passive house achieved in … Continue reading Airtight Building Design: How our Passive House Aced the Blower Door Test