RRS manufactures many kinds of roof curbs, but our patented “hinge curb” revolutionized the curb industry by reducing the assembly time of roof curbs to minutes instead of hours.  Our typical 5-ton roof curb can be assembled in about 5 minutes – without the use of any tools.  We also have a patented adjustable-pitch curb, designed to easily adjust for either long or short side pitches, which allows the contractor to complete quick installations even on a sloped roof.