Stopping unwanted air infiltration into residential homes and commercial buildings is one of the most important and cost-effective ways to reduce heating and cooling costs, improve indoor air quality, and provide a more durable, energy-efficient construction. State-of-the-art building science is focused on increasing energy-efficient construction through the design of, among other things, superior air barrier systems within the building envelope. The building envelope is the boundary that separates outside air, moisture, wind, etc., from the inside conditioned space. In fact, the importance of the air barrier is such that current and future air barrier testing standards are being incorporated into new residential and commercial building codes. The new codes will significantly impact construction techniques in the coming years.
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