Exposed wood on the ceiling plane matches the posts and beams. Wood planking penetrates the glazing to run out on the underside of the eaves and if the interior walls have planking the same detail appears on the outside of thin walls. Exteriors are usually wood siding or shingle or stucco with robust wood trim. Roofs can be tar and gravel if low pitched or flat. Cedar shake or shingle as well as asphalt appear on steeper pitched roofs.