The U-value indicates the thermally insulating property of a component. It is the measure of the amount of heat that flows through 1 m² of a component at a temperature difference of 1 Kelvin. The thickness, material and layer structure of the component are decisive for the calculation. The lower the U-value of a component, the better its heat-insulating quality. Unit: W/m²K (Watt per Square Meter x Kelvin)
Source: bauwion
