The tile shape, copy the ancient glazed tiles, materials, color selection 0.5-0.6 thick steel plate, color-rich, high corrosion resistance, light assembly, high strength, decorated as a whole, with soft curves, clear steps, very three-dimensional reproduce ancient tile effect, weighs only 5-9 kilograms per square meter, is the traditional one-tenth of sintering a few watts. strong link means fully capable of sustaining the roof loads; unique layer of air between the roof insulation to improve performance; Watt's own water tank so some features of good water, very suitable for light steel structure, concrete structure, wood structure construction or Urban redevelopment projects in the flat to pitched.