What is clay foam?

Clay foam is the innovative, clay mineral-based insulation system developed for sustainable thermal renovation of double-wall masonry. The efficient core insulation with natural and harmless minerals leads to optimum energy consumption and reduces your carbon footprint. The masonry remains breathable thanks to its open-pored structure. This helps to regulate the indoor climate. The non-combustible clay foam also improves sound absorption. In the event of renovation or demolition, the dimensionally stable clay foam can easily be disposed of with the construction waste or recycled.

Whether for renovation, new builds or listed buildings, clay foam offers a flexible, safe and sustainable solution for a wide range of construction projects.

Unique advantages
Clay foam offers unique advantages for homeowners, fabricators and planners.

Clay foam news
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Clay foam event
19-20 November 2025 - Get to know clay foam at the climate festival in Berlin
Webinar
Clay foam webinar
2 December, 10 - 11am: Get to know clay foam in an interavtive live webinar
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How clay foam works
Clay foam combines the advantages of a mineral insulation material with the simple, safe and clean processing of a conventional foam system.
Clay foam videos
Find out more about the properties of the innovative clay foam material class.
Reference objects
The clay foam network
Find the right clay foam contact in your area.
 
Questions and answers
Do you have questions about clay foam? Here you will find answers about the new class of material.