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One of the key materials used in coil metal roofing is galvanized steel, which is coated with a layer of zinc to prevent corrosion. Other materials may include aluminum and copper, each offering unique benefits. The choice of material significantly impacts the longevity, aesthetic appeal, and maintenance requirements of the roofing system. Coil metal roofing products are designed to withstand harsh weather conditions, making them an ideal choice for regions with extreme temperatures or heavy rainfall.
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Typically, galvanized iron sheets are available in various thicknesses measured in gauges. The most common standards range from 18 gauge (approximately 1.2 mm) to 26 gauge (approximately 0.5 mm). Thicker sheets, like 18 or 20 gauge, are commonly used in applications requiring structural strength, such as construction and industrial settings. In contrast, thinner sheets are often applied in manufacturing and household fixtures where weight and flexibility are crucial.