Exposed fastener metal roofing, considered the less expensive and more economical choice, is installed with the heads of the fasteners visible on the top of the panels. When an exposed fastener roof is installed, the fastener goes directly through the metal and into the roof deck. Exposed fasteners have classically been used in agricultural or industrial applications.
The PBR Panel is one of the most commonly used metal siding and roofing panels on commercial steel frame buildings. It is also known as R Panel. It is most widely fastened with screws in the flats of the panel along with stitch screws in the overlap. PBR is available in 26 gauge painted or galvalume material.