Õhukindlustusel

Õhukindlustusel, also known as air seal or airtightness, refers to the degree to which a building or structure prevents uncontrolled air leakage into or out of the conditioned space. This uncontrolled air movement, often referred to as infiltration and exfiltration, can significantly impact a building's energy efficiency, thermal comfort, and indoor air quality.

Achieving good õhukindlustusel is a key aspect of modern building science and is often a requirement in high-performance building standards. Air leakage can occur through cracks, gaps, and penetrations in the building envelope, which includes walls, roofs, floors, windows, and doors. These openings can be caused by construction defects, material deterioration, or poor sealing during the building process.

The consequences of poor õhukindlustusel are multifaceted. Increased energy consumption is a primary concern, as heated or cooled air escapes and is replaced by unconditioned outside air, forcing HVAC systems to work harder. This can lead to higher utility bills. Furthermore, uncontrolled air leakage can result in uncomfortable drafts, uneven temperatures within rooms, and increased humidity levels, which can promote mold growth and compromise the structural integrity of the building.

Conversely, a well-sealed building envelope with good õhukindlustusel offers numerous benefits. It contributes to significant energy savings, enhances occupant comfort by maintaining stable temperatures and reducing drafts, and improves indoor air quality by controlling the flow of air and allowing for better filtration. Specialized testing methods, such as blower door tests, are used to measure and quantify a building's airtightness.