A main application of the coated embossed aluminium coil falls on roofing. It’s used for roofing because of its good decorative effect, easy maintenance and long service life. Popular alloys are 1100 and 3003, with aluminium coil thickness 0.018mm to 1.0mm, coating thickness 0.25mm to 0.5mm, and width less than 1600mm. Mill finish aluminum rolls go through embossing, cleaning, roller …