Ключевые слова:
Legislation|Ventilation ductwork|Fire resistance|Construction systems parts|Ceiling voids|Access|Dimensions|Maintenance|Ventilation|Anthropometric characteristics|Structural design|Air-conditioning systems|Fire spread prevention|Ducts (building services)|Marking|Escape|Cleaning|Energy supply systems (buildings)|Fire safety in buildings|Inspection|Space-heating systems|Design|Bibliography|Safety measures