Can a house be too airtight? / Green Building & Sustainable Home Renovation Information & Advice

...airable: access for repair if damaged. A sampling of air barrier materials and techniques: House wrap: Also known as Water Resistive Membranes (WRBs), brand names include Tyvek and Typar. While its intent is largely as a breathable membrane to protect against water penetration behind cladding, it can be an effective ai...

...ated vapor barrier would actually not be a problem if you have a tight air seal. Like that gypsum board box, the amount of water vapor that can pass through a ripped and torn vapor barrier is insignificant as long as the air seal is intact. Can a house be too airtight? No it cannot. Unfortunately, air barriers are real...