Ключевые слова: air, architecture, background, blue, building, chimney, construction, design, detail, energy, engineering, environment, equipment, estate, exhaust, exterior, flue, heat, home, house, industrial, industry, metal, modern, new, old, outdoor, pipe, pollution, rain, residential, roof, roofing, rooftop, shingles, sky, smoke, smokestack, stack, stainless steel, steel, structure, system, technology, tile, top, tube, urban, vent, ventilation,