Exterior, Wood Siding Material, House Building Type, and Flat RoofLine "The cedar siding is simply stained with a black semi-transparent oil stain [from Cabot], which allows the color of the wood to still emerge through,” architect Robert Hutchison says. “We love how the black color makes the building recede into the background, and how it in turn allows the trees on the site to emerge as the highlight.”  Future home exterior from Courtyard House on a River