Ключевые слова: architecture, beam, builder, building, building exterior, built structure, carpenter, construction, construction industry, construction site, contractor, dangerous, development, engineer, foreman, frame, helmet, high section, home, horizontal, house, industrial, industry, job, labor, man, material, men at work, nail, new, no people, occupation, outdoors, person, profession, professional, real estate, residential, residential building, roof, roofer, rooftop, safe, safety, secure, site, sky, timber, wood,