Overview - Building materials
In addition to upgrading external materials, ZAPP-ZIMMERMANN GmbH has developed its own approved building materials.
![](/pool/Baustoffe-Komponenten/en/overview-building-materials.jpg)
Comparison of the intumescence of the building materials cited above
![](/pool/Baustoffe-Komponenten/en/comparison-intumescence-building-materials.jpg)
In addition to upgrading external materials, ZAPP-ZIMMERMANN GmbH has developed its own approved building materials.
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