Ключевые слова: background, bar, beam, build, building, ceiling, construction, construction work, contractor, cover, crosspiece, development, estate, exterior, factory, frame, framework, girder, heavy, home, house, industrial, industry, investment, iron, material, metal, new, project, property, real estate, red, renovation, repair, residence, residential, ridge, roof, rooftop, site, stack, steel, structural, structure, truss, unfinished, workplace,