Canadian Mortgage and Housing Corp. – Improve Air-tightness

Money-House-see-sawReducing unintentional air leakage (that is, air sealing) through the walls, ceilings and foundations of the house is one of the most cost-effective ways to improve its energy performance and comfort.┬áThis should be the first priority in any building envelope retrofit because……air leakage can reduce the effectiveness of some types of insulation, and allows warm, conditioned air to escape to the outdoors or lets cold outdoor air infiltrate to the interior, causing the heating system to work harder. If left uncorrected for too long, air leaks can also cause moisture and indoor air quality problems.

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