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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

Caluwin details

Caluwin is a free Business app for Android with 0+ installs on Google Play and a 5.0/5 average rating from 1 rating. It was released on September 10, 2026 and last updated on September 10, 2026. It's developed by Saint-Gobain Group. It requires Android 6.0 or later.

Category: Business
Rating: 5.0 / 5 (1 rating)
Installs: 0+
Price: Free
In-app purchases: No
Ads: No ads
Current version: 1.0.1
Requires Android: 6.0
Content rating: Everyone
Released: September 10, 2026
Last updated: September 10, 2026
Developer: Saint-Gobain Group

What’s new in Caluwin

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.

Version 1.0.1 · Updated September 10, 2026