Ribbed pyramids on square bases are realised with thermoformed sheets, with 45° inclined pitches.
The system consists of aluminium ribs and moulded sheets having rhomboidal shape with pyramidal triangles which give non-deformability to the elements. The skin can be single or double for a better thermal insulation.
Ribbed pyramids are made with solid polycarbonate (PC) sheets, in clear transparent, opal white or smoky bronze colours. The ribs are made of extruded aluminium alloy, protected by anodizing or by epoxy powder coating.