Look at this beautiful Certainteed landmark pewter gray architectural shingle installed by The Golden Group Roofing Team in Watertown,MA. We can’t get over how beautiful this shingle is and how timeless the color palette is. Certainteed Landmark is a dual-layered laminate shingle that comes in a variety of colors to complement the exterior of any home while still offering a variety of technologies and features, some universal, some specially-designed for different regions and climates.Would you