London Fire Safety Guidance for Houses in ... - Harrow Council

Three and Four Storey HMOsRequirement. Fire resistance Technical standardsand guide to complianceWalls and Ceilings30 minute fire resistance to all standard risk rooms within dwellings (includingceilings beneath attics) between dwellings bordering the protectedroute ceilings between basement or cellarand ground floor escape route60 minute fire resistance to all higher risk rooms within dwellings (includingceilings beneath attics andwithin basements or cellars) between dwellings bordering the protectedrouteConstructionspecification to betested to :BS 476 : Part 8 : 1972orBS 476 : Parts 20 - 22 :1987 as appropriateDoors30 minute fire resistance (FD30S) to all standard risk rooms within dwellings opening onto the protectedroute60 minute fire resistance (FD60S) to all higher risk rooms** within dwellings opening onto the protectedroute within a separating wallConstructionspecification tested to :BS 476 : Parts 22, 23and 31.1 Installation to: BS 8214 : 1990.LobbiesNot requiredCupboardsstoresandWhere in staircase enclosure treat as arisk room (as above). Door to be keptlocked shut when not in use.London Fire Safety Guidance for Houses in Multiple OccupationVersion 2: 06/06