Asphalt shingles are available in a variety of colors, weights and patterns.

沥青瓦的颜色、重量及样式的种类非常丰富。

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Regular weight asphalt shingles generally have an economic life span of 16-20 years;

普通重量的沥青瓦通常的使用年限为16-20年；

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The roof of Simon's side, with its black asphalt shingles, was graced at the extreme north end by a weather vane.

西蒙那边的屋顶是黑色的沥青板，在正北边装饰了一个风向标。

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Asphalt shingles also have varying expected maximum life spans, depending on the quality of the shingle.

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Products include respirators, surveillance equipment, radio frequency identification equipment, insulation, weatherproofing materials, cleaning products, mats, and granules for asphalt shingles.

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Asphalt shingles ( the most common roofing material in the U.S.) can become loose, cracked, be blown off by the wind or be damaged by hail.

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