Dämmleistung

Dämmleistung refers to the effectiveness of thermal insulation in a building component or material. It quantifies how well a material resists heat transfer, thereby reducing energy loss. Higher Dämmleistung indicates better insulation.

The primary measure for Dämmleistung is the U-value (Wärmedurchgangskoeffizient). The U-value represents the amount of heat that flows through one square meter of a material or component per Kelvin temperature difference per second. A lower U-value signifies better thermal insulation and thus higher Dämmleistung.

Alternatively, the R-value (Wärmedurchlasswiderstand) is used, particularly in North America. The R-value is the inverse of the U-value and measures the resistance to heat flow. A higher R-value indicates better insulation and higher Dämmleistung.

Factors influencing Dämmleistung include the material's composition, thickness, and density. Common insulating materials like mineral wool, polystyrene, and polyurethane foam are chosen for their excellent Dämmleistung. Proper installation and the absence of thermal bridges are crucial for achieving the intended Dämmleistung of a building. Effective Dämmleistung contributes significantly to energy efficiency, comfort, and reduced heating and cooling costs.