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- story by MaterialDistrict

The Gramitherm® process extracts from raw grass cellulose fibres and “juices” supplied to biogas units as energy booster or producing a nutritive concentrate for animal food (pigs and hens) which is currently under development and testing. The Gramitherm® process secures a full utilisation of all grass components, and generates high efficiency and added value to the raw material.

The Gramitherm® patented innovation  is unique and based on 3 key steps :

  • the “silage” grass sourcing (partnership with local farmers) ; 1 acre of land will allow to produce 200 M3 of insulating products!
  • the grass fibres extraction from the raw material ; valorization of the “juice”; drying and opening fibres
  • and finally the semi-rigid boards production (AIR-LAY process, thermobonding oven).

Gramitherm® offers excellent protection against cold. Thanks to its high specific heat capacity, it also offers very efficient protection against heat. Furthermore, it effectively absorbs sound over a wide range of frequency. Protection against fire and fungi is secured by harmless additives.

Gramitherm® is compressible and ideal for roof application between rafters. It is easy to cut (with a simple cutter) to the requested dimensions on site, and it can be handled fast and easy (it is not itchy).

To produce Gramitherm®, local resources are integrated into a regional value chain for local markets. Agriculture is a key production partner.

Material Properties