ilmanvuotojäännökset

Ilmanvuotojäännökset, also known as air leakage remnants or residual air leakage, refers to the air that continues to leak into or out of a building envelope even after sealing measures have been implemented. While airtightness is a desirable characteristic in modern construction for energy efficiency and comfort, achieving complete airtightness is practically impossible. Therefore, even well-sealed buildings will have a certain level of unavoidable air leakage.

These remnants can occur through various pathways. Small, unavoidable cracks and gaps in the building envelope, such as around window and door frames, electrical outlets, plumbing penetrations, and structural joints, can allow for a low but continuous airflow. The quality of construction and the materials used play a significant role in the extent of these residual leaks.

The presence of ilmanvuotojäännökset can affect a building's performance. While excessive air leakage leads to energy loss, a minimal amount of controlled air leakage can be beneficial. It can contribute to natural ventilation, preventing issues like moisture buildup and poor indoor air quality. However, if the residual leakage is uneven or poorly distributed, it can create drafts and cold spots, compromising occupant comfort.

Assessing and understanding ilmanvuotojäännökset is important for building diagnostics and performance verification. Techniques like blower door testing can quantify the overall air leakage of a building, and thermal imaging can help identify specific areas of residual leakage. While aiming for minimal air leakage is crucial, recognizing and managing the unavoidable remnants is a key aspect of sustainable and comfortable building design.