Cold-formed C and Z purlins are the workhorses of the industry. Configurations of these members have originated at the bending press they represent the two basic ways to bend a sheet of metal into a ...

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 ...

Industry's move to electric arc furnaces and architects' specification of light gauge framing systems are helping to improve the sustainability of building projects ...