North Country Unfading Purple is a premium quality roofing slate in tones of burgundy with frequent minor inclusions of green. These Vermont roofing slates are a favorite of architects and owners for custom homes where they are blended with other slates to create multicolored roofs. This purple slate is produced by select Vermont quarries, North Country Unfading Purple meets or exceeds ASTM requirements as an S-1 rated roofing slate.