The 40mm thick panels with proven groove and tongue connection are 500mm wide. They differ from number of layers which has significant influence onto the U-value of the panel. The U-values our 40mm panels range from 1.4 to approx. 1.0 W/m²K (according to DIN EN ISO 10077-2) depending on the chosen product and the installation situation. The perimeter frame profiles are available thermally broken and non-thermally broken. The panels can be easily connected to each other and are ideal for facade constructions as well as an optimal and long lasting solution for roof glazing