About Glass cladding (i.e., curtain wall), installation

Metal and glass curtain wall systems have found growing favour in modern ar chi techre. They are easily distinguished from other types of claddings by their thin mullions of horizontal and vertical metallic bars surrounding an all glass or metal panel.

The curtain wall system has evolved rapidly over the last two decades, especially with respect to weather control performance. The early systems presented frequent rain penetration problems; large icicles would form on the outside horizontal bars or condensation on the inside mullion surfaces; glazing seals were sometimes pumped out of the rabbet of sealed double glazing windw units. However, most of these difficulties were eventually overcome with improved detail design of the system components. Today, most curtain wall manufacturers offer a quality product line of components which can be used to create one of the best overall exterior wall system.

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All contents of this page are taken from http://www.nrc-cnrc.gc.ca/obj/irc/doc/pubs/bpn/37_e.pdf