Ключевые слова: architecture, assembly, attic, background, beam, beams, building, construction, design, detail, development, engineer, estate, exterior, frame, frames, framework, framing, galvanized, home, house, industry, material, metal, old, pattern, property, purlin, real, renovation, roof, roofing, site, sky, steel, structure, technology, timber, truss, wood, wooden,