Eastern White Cedar Shingles are produced in three grades, A, B & C. A (Blue Label) is knot free, paler in shade and homogeneous. B (Red Label) is similar to A but may contain knots in the top unexposed area of the shingle. C (Black Label) may contain visible sound knots, is a darker shade and more varied in appearance. Cembrit Ltd. only offer A Grade shingles treated or untreated as A is the only grade suitable for pitched roofing. B and C are only suitable for vertical applications.

www.cembrit.co.uk/roofing/shingles/cedar-shingles