Our story: the evolution of Gramitherm®
From invention to commercial success, Gramitherm® transforms grass into high-performance, sustainable insulation.
For several years, Gramitherm® has been pushing the boundaries of insulation by transforming a natural, abundant resource—grass—into a high-performance bio-based material. With unique expertise and a deep commitment to sustainability, we oversee every stage: from production to marketing and continuous development.
2006
Birth of the Technology
Swiss agronomist Stefan Grass develops a process in collaboration with EPFL Lausanne to turn grass into a revolutionary insulation product: Gramitherm®.
ETA-06/0274 European Technical Approval
This approval enables marketing across all EU member states.
2013
Acquisition of Patents and Creation of 'Clean Insulating Technologies SA'
Christian Roggeman acquires the intellectual property of Gramitherm® and founds Clean Insulating Technologies SA in Lausanne. Initial Gramitherm® panels are produced in Austria and France by subcontracted manufacturers.
2018
Interreg GrassGoed Project
Gramitherm® joins the Interreg GrassGoed project, aimed at valorising natural greenery as a raw material.
2019
Creation of Gramitherm Europe SA
The Gramitherm® brand is launched with a dedicated production line in Auvelais, Belgium—marking a new chapter for bio-based insulation.
'Efficient Solution' Label
The Solar Impulse Foundation recognises Gramitherm® as a solution combining efficiency and sustainability.
2020
'Bio-Based Product' Certification
Gramitherm® is officially certified as bio-based by the Walloon Region.
2022
Renewal of European Technical Approval (ETA-21/0260)
This renewal ensures continued access to EU markets for Gramitherm® products.
Renewal of 'Efficient Solution' Label
Solar Impulse reaffirms Gramitherm® as a clean and profitable ecological solution.
2024
Renewal of 'Bio-Based Product' Label
The Walloon Region renews Gramitherm®'s certification, reinforcing its eco-responsible commitment.