Advantages of Metal Sheet: Because of their light weight, architects and engineers can reduce the cost of the roof structure. Also the light weight allow faster roofing, curve or ortodox roofing also possible with the metal sheet. And because of the less joint area, the leak will be lower than standard ceramic roof, allowing low-inclination roofing.

Disadvantages of Metal Sheet: Sound of raindrop collide with the roof, that can be ease with foam-lining or heat insulator, or construct a second-layer ceiling to proof the sound to reduce the sound of the rain.

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