Energy Implications of Airtightness

The potential heat loss due to air leakage through an enclosure with moderate or poor airtightness has a significant and measurable impact on the required heating energy needed for the building. An enclosure with good airtightness can lead to significant energy savings. As the other components of a building become more energy efficient through the insulated enclosure, efficient mechanical systems, etc., airtightness plays an even more significant role in controlling heating energy demand.