Energy efficiency

Saving energy is an active contribution to environment protection.
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INFO: What is “Up-value”?

The Up value (the coefficient of thermal transmission, the thermal insulation value, as well known as the k-value) is the unit of measure for the amount of heat passing through a one- or multi-layer material, at different temperatures between the two sides. In building physics, the Up value of an entry door refers to the building element of the panel (p).