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 commonly 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. It is available in 24 gauge painted by special order. If you are looking for a commercial panel with the ability to span up to 6′ at an affordable price, the PBR panel is for you.