Ключевые слова: activity, architecture, attic, background, building, cardboard, cellulose insulation, cold, construction, energy, environment, expanding, floor, frame, friendly, heat, home, house, industry, insulate, insulating, insulation, isolated, isolation, loft, man, material, natural, new, object, old, organic, paddle, paper, pile, preparing, real, recycle, recycled, roof, step, thermal, use, waste, wastepaper, white, wood, wooden, wool, worker,