Flat Seam Roofing
Flat seamed roofs are used on very low-pitched roofs and have soldered seams. In this application, galvanized steel and copper are the most widely used metals, with stainless steel and zinc rarely installed. The panels are made from 18” x 24” sheets, with all four sides folded over, two sides one way and the other two opposite. They are installed with clips that are fastened into the plywood. In this way each panel can move independent of each other. After the panels are interlocked and clipped, the seams are laid flat; then all the seams are soldered. Copper decks can last a lifetime while the galvanized decks last around 20 years. Shallow curved eyebrow roofs are typically done with this panel, as well as troublesome areas of a roof.