These panels, PU (Polyurethane Foam) as core insulation material, are preferred for roof application by many architects, consultants and contractors. Available in two std. Designs, the cover/effective width of these sheets is 1000mm, 1020/1030mm. 50mm is the standard thickness of these panels. PPGI (Prepainted / Pre-coated GI) and Pre-pained Aluminum (PPAL) are the material in various thicknesses that is the skin material of these panels. Color-coated Aluzinc sheet skin panels are also possible subject to the qty.