Passive House Retrofit in Vermont, US

Passive House Retrofit in Vermont, US

The term airtightness leads us to think of a stuffy, hermetically sealed house, but airtight houses are extremely healthy and economical to run. WHAT IS AIRTIGHTNESS AND WHY IS IT SO IMPORTANT? Airtightness is the resistance of the building envelope to inward or outward air leakage. Air leakage is driven by differential pressures across the building envelope. Excessive air leakage results in increased energy consumption and can create a draughty, unhealthy,...

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