The panels are made of compressed fibres of basalt rock. Strengthened with thermosetting synthetic binders, they are pressed under high pressure and temperature. The panels are characterised by highly effective weather protection outdoors and in humid conditions, they are impact and shock resistant, and resistant to large and abrupt temperature changes. Resistant to chemical products and environmental influences, they have a high UV resistance with colour fastness. Panels made of fibres from basalt rock consist for a part of at least 20% of recycled materials. They are durable and fire-resistant, according to fire protection class B-s2, d0, on request also A2-s1, d0 .