To those of us in the industry, the term 'high-performance home' has a clear definition. It's one with a good building enclosure. That is, it's airtight and insulated well. It has properly sized, installed, and commissioned heating and air conditioning systems, including the distribution side. Because it's airtight, it also has mechanical ventilation. The result is a home that's comfortable, healthful, durable, and energy efficient. Apparently that's not good enough.