Steps for drawing an architectural section of a futuristic house: Outline the structure: Start with the exterior walls and roof. Use straight lines to define the slope of the roof and eaves. Draw the roof section: Include rafters and layers of insulation. Show the slope of the roof with diagonal lines. Wall details: Illustrate the layers of walls: exterior cladding, insulation and interior surface. Include window and door sections with frames and window sills. Foundation and floor: Draw the base lines and floor structure. Specify any insulation or bedding. Interior elements: Show interior walls, if any, with doorways.