PEB is a metal building construction that consists of light weight metal standing seam roof panels on steel purlins, arch between rigid frames with light gauge metal wall cladding. PEB is a relatively flexible structure vs a conventional steel building. In other words, it has a much greater vertical and horizontal deflection. Pre-engineered building concept is widely used in many of the industries. PEB consists of a complete steel-framed building system, with components pre-designed to fit together in a different combinations to meet the unique requirements of specific end uses.