DaVinci Roofscapes. VariBlend polymer roofing tiles include slight variations of grays, greens, and browns to provide a subtle blend of colors. Available in the Bellaforte, Valore Shake, and Valore Slate product lines, the tiles have a 50-year warranty and are 100% recyclable. 800.328.4624. www.davinciroofscapes.com.