The Case for Flat Roof Applications

Steel bar joists have been and will likely continue to be the primary choice for structural engineers, architects, and building developers/owners in large commercial and industrial building construction – and for a good reason. Steel bar joists have been around for a very long time: a mature industry that is better than 100 years old. The Steel Joist Institute (SJI) was formed in 1928 and has done an excellent job developing and maintaining quality standards for its products. And steel bar joists have typically been readily available for use on projects.