How are shingles remanufactured?
Remanufacturing takes additional steps to create more tailored shingle products. Rebutted and re-jointed shingles are trimmed again along the sides and at each end. These Certigrade® “R&R” products may then be packaged and sold, or may undergo further machining, such as face-sanding, machine grooving to make Certi-Groove® shingles, or pattern cutting to the butts of the shingles to make Certi-Cut® products. Some manufacturers also offer pre-primed or pre-stained products in different colors for sidewall installation.
