Hot-rolled steel purlins predate modern metal building systems by decades. A multitude of industrial buildings constructed since the beginning of the twentieth century utilized hot-rolled channel and ...

If you've ever walked by a building and wondered how it’s put together, chances are, sheet metal has something to do with it.

A projecting external staircase zig-zags up the perforated metal facade of the Lucila Rubio de Laverde School in Bogotá, ...