Exterior, Metal Roof Material, House Building Type, and Wood Siding Material From its locally quarried stone foundation to its zinc-coated copper roof, the cottage was inspired by its surroundings. “We talked a lot with our client about what the materiality would be,” says architect Karen Stonely, who, citing the organic style of Bar Harbor architect Robert Patterson, designed the structure with wood rather than drywall.  Photo 1 of 5 in Frank Lloyd Wright-Inspired Style and Camping Collide in Maine