Exterior, House Building Type, Butterfly RoofLine, Glass Siding Material, and Brick Siding Material For the southeast-facing facade, which is concealed from street traffic, Tehrani opted for transparency, repositioning bricks to place a sculptural collage of protruding box windows and a glass expanse.  Photo 6 of 15 in What’s the Twist Behind This Home’s Sinuous Staircase? Ordinary Plywood