North Country Unfading Mottled Purple and Green is a premium quality unfading roofing slate of varying shades of burgundy with frequent clouds or inclusions of green. This Vermont roofing slate offers subtle color and texture variations on roofs where a multi-colored blend of slates would not suit the building’s architecture or surroundings. North Country Unfading Mottled Purple and Green slate is produced by select Vermont quarries and meets or exceeds ASTM standards as an S-1 rated roofing slate.