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Caluwin

Saint-Gobain Group Business

With Caluwin you can calculate potential energy savings by using Swisspacer.

Downloads
28+
on Google Play
Price
Free
No in-app purchases
Updated
Sep 10
2026 · v1.0.1
Get it onGoogle Play See alternatives

Screenshots

  • Caluwin screenshot 1
  • Caluwin screenshot 2
  • Caluwin screenshot 3
  • Caluwin screenshot 4
  • Caluwin screenshot 5
  • Caluwin screenshot 6

About Caluwin

Caluwin is an app for calculating window performance parameters according
to DIN EN ISO 10077 and DIN EN13947.

Key features:
• Calculation of window Uw values according to DIN EN ISO 10077 1
• Calculation of surface temperatures and condensation risk in the glass edge area
• Calculation of window energy savings for winter and summer conditions
• Window energy ratings for Switzerland, Denmark, France, and the United Kingdom
• Passive House efficiency assessment
• Swisspacer Air simulation, including lifetime effects and elevated transport scenarios

What’s new

Version 1.0.1 · Updated September 10, 2026

This tool is aimed to help manufacturers/developers, sellers of windows and window components, as well as planners and architects, energy consultants and building biologists with their work. It is intuitive to use and those building and renovating homes can also plan and optimize their windows with CALUWIN.

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