Architectural section drawing, clean technical style. Sloped roof with a roof edge overhang (bottom of slope) measuring approximately 20 cm. Integrated gutter (chéneau) at the roof edge, 20 cm wide. Vertical wall below the roof with 18 cm thick insulation clearly visible in section. Window integrated into the wall, shown in section with frame and glazing. White background, sharp black lines, realistic proportions. Minimal technical annotations in centimeters. Professional architectural detail drawing. See more