Corrugated galvanised iron (CGI) sheets - Standard
Corrugated Galvanized Iron or steel (CGI) sheets are used for general roofing purposes. Thickness is an important factor for strength and durability. 0.551 mm (26 gauge) for permanent shelters and shelters subject to snow loads. 0.475 mm (28 gauge) can be used for shelters when the wind speed is lower than 250 km/h, the distance between laths
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