Asphalt tile and ordinary cement tile which is good
A kind of bay called Wei Na steel, beautiful three-dimensional sense of strong, slope suitable for 13 - 90 degrees, the construction of convenient, long life, the disadvantage is the high cost of tile, suitable for high-grade buildings.
Cement tile: heavy not suitable for high-rise buildings, especially when the rain is more heavy, a long time there are security risks, not suitable for the slope of more than 60 degrees of the roof, the advantages of low cost
Each have their own advantages, see your needs.
Asphalt tiles: relatively low-end of a tile, the construction of the grass is also more trouble to find a plane before construction, after all, asphalt aging life is short, a long time there is the risk of being blown away, no fire, the advantages of low cost
