The online tool Caluwin has established itself as a reliable support in the national and international environment. It was developed by Swisspacer and realised by Sommer Informatik GmbH with technical support from BAUWERK-Ingenieurbüro für Bauphysik.
The Caluwin calculation core is certified by ift Rosenheim. Caluwin is available online and as an app for iOS and Android devices in the respective app stores.
Caluwin includes the calculation of UW values, condensation and mould formation as well as energy efficiency assessments of windows and enables energy savings to be documented. In addition, insulating glass unit manufacturers and window manufacturers can use Caluwin to check whether the use of Swisspacer Air can achieve the required pressure equalisation to avoid damage from climate loads – and this can be done individually for specific insulating glass units and for given boundary conditions such as climate zones and differences in height during transport.
The manufacturer Glas Herzog GmbH is one of the leading suppliers of insulating glass units. The company, based in Waghäusl, Baden-Württemberg, supplies high-quality solutions for windows, doors and façades and primarily relies on Swisspacer spacer bars. “We attach great importance to high quality, innovation, sustainability and customer satisfaction,” said Managing Director Andreas Herzog junior. To fulfil this requirement, Glas Herzog also uses Caluwin time and again, “Our experience with the online tool has been really good, especially when using Swisspacer Air. We can simulate very easily and accurately how the Air affects large glasses and at different heights. This significantly minimises any unpleasant surprises. And this security is an important point for our customer satisfaction,” said Andreas Herzog junior.
Caluwin has also proven itself internationally. It determines various energy ratings in different countries, determines efficiency classes for passive house windows according to the guidelines of the Passive House Institute Darmstadt if required and can be operated in 17 different languages. Over the past three years, 765 individual users, mainly from Germany, Spain, Italy, Poland and France, have worked with Caluwin. However, users from other European countries, the American continents and Asia have also accessed the calculation tool.