Unfading Green Roofing Slate is a classic Vermont slate roofing material. We have quarried this stone for almost 150 years. Because of its superior performance, pale green color and natural texture, architects repeatedly specify this natural Vermont slate for institutional, commercial and residential roofing projects. Unfading Green Roofing Slate is appropriate for both traditional and contemporary architecture. Being an “unfading” slate, this durable material will hold its basic color after many years of exterior use. Unfading Green Roofing Slate is available in many sizes and thicknesses.