COLORBOND Downpipe with a square gutter is a great choice for a modern upgrade to a traditional building or to complement a contemporary design. The downpipe should be fastened to the wall with astragals.  With COLORBOND® steel’s innovation, you don’t have to worry about painting, oiling, or replacing palings. There is a wide range of colors available in COLORBOND® steel to match or contrast with your roof. Steel and tile roofs are compatible with them. Installs quickly and easily on both tiled and metal roofs.