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FAAC TK50 THERM Ud Calculator


Calculate the Ud value of your automatic entrance

The Ud value (thermal transmittance of the door) measures how much heat passes through a closed door, per square metre and per degree of temperature difference between inside and outside. It's expressed in W/m²K and covers the whole doorset: glass, profiles and glass edges. The lower the value, the better the insulation.

Automatic entrances are large, mostly glazed openings, so they are often a weak point in a building's thermal envelope. A low Ud means lower energy losses, better indoor comfort and easier compliance with energy-efficiency targets.

Ud depends on the entrance size, configuration and glazing. Use this calculator to get the value for your project. With TK50 THERM thermally broken profiles, entrances can reach Ud values as low as 1 W/m²K.

TK50 THERM automatic sliding entrance separating a warm hotel lobby from a snowy street
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