Interlock Metal Roofing - New England is a professional Metal Roof installation and financing company located in Walpole, MA. The official installer of the Interlock Roofing System in New England. Homeowners can choose from metal shingles that look like Slate, Cedar Shingles, Wood Shakes, Mediterranean Tiles, and the classic Standing Seam profile. All our roofs come with a Lifetime Limited Warranty. Looking for solar options? All our roofs are compatible with solar panels. Beat the heat with Interlock! All our roofs are coated with the Alunar Coating System embedded with Teflon surface protector. This coating system emits most of the suns uv rays from entering the attic. Add snow guards to protect your walkways and driveways from falling snow. Our four-way interlocking design helps prevent ice dams.