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

Five 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 protected route 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 protected routeConstructionspecification to betested to :BS 476 : Part 8 : 1972orBS 476 : Parts 20 - 22: 1987 as appropriateDoorsLobbies30 minute fire resistance (FD30S) to all standard risk rooms within dwellings opening onto the protected route60 minute fire resistance (FD60S) to all higher risk rooms within dwellings opening onto the protected route within a separating wallLobbies are required between all riskrooms and the stairway on all storeysexcept the top storey unless: there is a secondary means of escapeor there is an independent secondstairwayConstructionspecification tested to:BS 476 : Parts 22, 23and 31.1 Installationto : BS 8214 : 1990.CupboardsstoresandWhere 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