In the hybrid-core version of the concealed-fix wall panel the core is rock wool based, with polyurethane strips along the edges. The strip holds the screw seat tightly; in a concealed-fix system the fixing sits inside the interlock, so this behaviour bears directly on installation quality.
Fire class A2-s1-d0, thermal conductivity 0.045 W/mK. Thickness goes up to 200 mm.
It is used on tall facades where wind suction governs and on architectural facades where class A2 is mandatory. Fixing selection is described in the Library section.
