Founded in 1985 and based in Italy, Diasen is a pioneer in sustainable construction solutions, specialising in natural materials that support healthier, more comfortable living environments. At the core of Diasen’s philosophy is a deep commitment to environmental sustainability, innovation and human well-being.

Diasen’s product range includes breathable thermal and acoustic insulating plaster systems, developed to deliver exceptional performance while reducing environmental impact and preserving the character of buildings. By combining traditional materials such as cork and lime with modern technology, Diasen creates breathable building systems that manage moisture naturally, improve indoor air quality and enhance energy efficiency.

The Diasen range is solely distributed in the UK and Ireland by Ecological Building Systems. For over 20 years, Ecological Building Systems has been at the forefront of environmental and sustainable building products. Our philosophy is to achieve 'Better Building' by adopting a 'Fabric First' approach to design, with the use of more natural, sustainable materials to optimise building performance and durability. We deliver quality products backed up with expert technical support.

Diasen Diathonite Thermactive .037 Environmental Product Declaration