History of architectural metals first used by the ship building industry lead used in the 1500s with rolled copper use starting in late 1600s new york city hall used copper for roofing circa 1764 a copper roof was used on the rebuilt old senate chamber in 1819 replaced in a 1900 renovation. Architectural sheet metal manual smacna on amazoncom free shipping on qualifying offers this completely updated publication contains the most comprehensive recommended practices available for proper design and installation of custom fabricated architectural sheet metal including roof drainage system design for scuppers. Oil canning is a perceived waviness across the flat areas of sheet metal panels it is a naturally occurring phenomenon that is inherent in all light gage sheet metal smacnas new architectural sheet metal manual 6th edition provides methods from design to installation to mitigate its occurrence. Architectural sheet metal manual 6th edition edition 2003 20067 user per year the most comprehensive set of recommended practices available for proper design and installation of custom fabricated architectural sheet metal including roof drainage system design for scuppers gutters and downspouts madcadcom smacna subscriptions
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