Ключевые слова: bitumen, builder, building, coating, construction, contractor, covering, damp, equipment, felt, fire, flame, flat, gas, heating, house, industrial, industry, installation, insulation, laborer, maintenance, material, melt, melting, membrane, new, proofing, propane, protection, refurbishment, repair, roll, roof, roofer, roofing, ruberoid, sheet, site, technology, tool, torch, waterproof, waterproofing, work, worker,