Ключевые слова: abstract, air conditioning, backgrounds, commercial, composite, contemporary, curve, development, duct, engineering, estate, exterior, facade, frame, front, futuristic, geometric, industrial, material, metallic, modern, monochrome, office building, outside, panels, perspective, scale, shape, shell, sidings, skyscraper, square, stainless, steel, structure, surface, technology, textured, tile, urban, vent, ventilated, vertical, windows,