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Metal is one of the most durable materials (often involving a lifetime warranty) used for reroofing. Metal roofs are available in a huge variety of custom shapes, designs and varieties, which include the use of copper, aluminium and high grade steel (you’ve most probably heard of the famous Colorbond steel, for example). What’s more, such roofs conduct heat much more easily than any other types of materials, making insulation and temperature control easier. .
Slate tiles:板岩瓦片
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Tiles are a very popular choice for roof replacement jobs, slate being by far one of the best types of roofing materials used in the industry. Slate is made from natural, quarried stone, weighing less than many other varieties of tiles, and it usually requires the use of reinforced framing. Slate tiles can be somewhat expensive; however, they can easily withstand fire, moisture and insect damage, their normal lifespan often exceeding 100 years.
板岩瓦片一般由自然的石头制造
优点：轻，抗火，抗湿、抗虫
缺点：也是轻，要专门固定；贵
concrete tiles：混凝土瓦片
This type of roofing material is an excellent choice for imitating wood, slate and clay. Many varieties of concrete tiles are very easy to install, and they also come with limited lifetime warranties. Still, it’s worth mentioning that they do require annual or bi-annual checks for loose or cracked tiles. Moreover, unlike slate tiles, these are quite affordable, although weight-related shipping expenses may occur.
[attach]377833[/attach] 优点：容易安装，较为坚固；便宜
缺点：需要年检查或者半年检查，查裂缝和查缺口
Terracotta tiles:赤陶土瓷砖
They can last for up 50-100 years, depending on the quality of the material used. Made from pulverized clay and water, these roofing materials can be quite heavy – measuring about 1,000 pounds per square – however, they are also energy resistant and non-combustible. Due to these advantages and their remarkably rich colour choices, slate tiles can be somewhat pricey, although they are still a rather affordable alternative to slate tiles.
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优点：能够用的时间长，抗燃烧性能强，能够阻隔热
缺点：质量重（可能也是优点），较为贵作者: KXGLP 时间: 22-8-2015 21:05 添加一些之前坛友贡献的屋顶资料
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