Lufttätningslösning

Lufttätningslösning refers to a method or system designed to prevent uncontrolled air leakage in buildings. This is a crucial aspect of modern construction and building science, aiming to improve energy efficiency, occupant comfort, and indoor air quality. By creating a continuous barrier around the building envelope, lufttätningslösning minimizes heat loss in winter and heat gain in summer, thereby reducing the demand on heating and cooling systems.

The implementation of a lufttätningslösning typically involves carefully sealing all joints, penetrations, and interfaces within the building structure. This includes areas around windows, doors, wall-to-roof junctions, and where pipes or electrical conduits pass through the building fabric. Various materials and techniques are employed, such as membranes, tapes, sealants, and specialized coatings. The effectiveness of the chosen solution is often verified through airtightness testing, commonly known as a blower door test, which measures the rate of air exchange under a standardized pressure difference.

Beyond energy savings, a well-executed lufttätningslösning helps to prevent moisture-related issues like condensation and mold growth within the building structure by controlling air movement and the transport of moisture. It also contributes to a more comfortable indoor environment by reducing drafts and improving acoustic performance. In addition, by controlling air leakage, it aids in maintaining a predictable indoor air quality by ensuring that ventilation systems are responsible for the intended air exchange, rather than random infiltration.