It is impossible to separate SWISSPACER from the planning of passive houses. In addition to product certifications, the Passive House Institute has also carried out studies that prove the performance and value added of the warm edge spacer bars.
SWISSPACER warm edge spacer bars have low thermal conductivity and make a big contribution to improving the U values of windows and façades. They increase the energy efficiency of the entire building considerably.
What is the Uw value?
The heat transfer coefficient of a window (Uw) expresses the loss of heat through a building element to the outside air.
In addition to the online application, you’ll also find CALUWIN in the app stores for iOS and Android devices.
Browse our reference database and object reports – where you’ll also find a number of passive houses!