Ключевые слова: air, architecture, building, chemical, closeup, construction, crack, efficiency, energy, equipment, exterior, fill, foam, foaming, gap, home, house, industry, installation, insulated, insulating, insulation, isolated, material, polyurethane, protection, pu, pufoam, renewal, renovation, repair, saving, seal, spray, suit, tight, wall, white, window, windows,