Specially placed grooves in Shakertown's Craftsman one-course cedar shingle panels let water flow both horizontally and vertically, channeling moisture away from the wall and down to the ground, the maker says. The Western red cedar shingles feature concealed nailing and a self-leveling design. They come 8 feet long and natural, primed, or pre-finished with a semitransparent oil stain in one of four colors. 800.426.8970. www.shakertown.com.