Coverlit is a custom-built covering made in multilayer type P-1000-40 insulating corrugated panels. COVERLIT®, patent number 01310849 assures total protection against the galvanic corrosion. Panels are formed by a Galvanized Sendzimir steel blade in accordance with the law 5753/84 and have a thickness of 6/10 mm, are prepainted over lines continuously with cycles based on polyester resins and by a reticulated polyethylene coating in adherence with an anti-condensation barrier. The useful breadth of the panel is of 1000 mm, the overall thickness of the panel is 3,5 mm circa. Coverlit is also available in belt, aluminium or stainless steel.