Ключевые слова: air, atmosphere, black, blue, brick, building, chimney, cloud, cooling, duct, elevated, exhaust, gas, gray, heat, industry, metal, pipe, pollutants, quality, roof, roofing, roofline, rooftop, sky, stack, system, thermodynamics, top, transfer, vent, ventilating, ventilation, ventilator, venting, vertical, yellow,