Typical Life Expectancy of Building Components Element ...

1 Typical Life Expectancy of Building ComponentsPage 1 of 3 ElementComponent NameSubstructureFoundations110 FrameSteel frame83 Concrete frame81 Timber frame69 Laminated timber frame65 Space frame73 Upper FloorsProfiled steel and reinforced concrete floor71 precast concrete slab78 Timber joists90 Softwood decking to timber joists71 Chipboard decking to timber joists51 Roof and RainwaterTimber batten on concrete slab raised access floor45 Disposal InstallationsTimber pitched roof84 Softwood decking to flat roof37 Chipboard decking to flat roof2634 Aluminium decking to flat roof39 Galvanised steel decking to flat roof35 Insulation to flat roof3619 Asphalt covering to flat roof36 PVC covering to flat roof27 Synthetic rubber (EPDM) covering to flat roof25 Tile covering to pitched roof64 Slate covering to pitched roof74 Thatch covering to pitched roof31 Aluminium covering to pitched roof37 Plastic covering to pitched roof30 Steel covering to pitched roof37 Composite cladding system38 Copper sheet covering63 Lead sheet covering72 Zinc sheet covering48 Cast iron gutters and rainwater pipes51 Plastic gutters and rainwater pipes30 Aluminium gutters and rainwater pipes40 Lead box gutters and flashings61 Zinc box gutters and flashings41 High performance felt box gutters and flashings21 StairsConcrete stairs74 Steel stairs59 Softwood stairs64 Hardwood stairs762115 Typical Life Expectancy (Years)Woodwool decking to flat roofBitument felt covering to flat roofAluminium stair nosingsPlastic stair nosingsTypical Life Expectancy of Building ComponentsPage 2 of 3 ElementComponent NameTypical Life Expectancy (Years)

2 External WallsFair-faced brickwork8653 Plastic profiled sheet cladding25 Steel profiled sheet cladding35 Glass fibre profiled sheet cladding27 Aluminium curtain walling43 Plastic curtain walling27 Structural glass curtain walling43 Hung tile cladding45 Timber weatherboarding30 Plastic weatherboarding28 WindowsSoftwood windows36 Hardwood windows50 Aluminium windows4437 Steel windows50 Internal WallsDe-mountable steel partitioning31De-mountable aluminium partitioning31De-mountable glass reinforced gypsum partitioning29De-mountable glass partitioning29 Internal DoorsInternal softwood door42 Internal ply-flush door33 Internal hardboard flush door31 Internal glass door29 Internal flexible door18 Roller shutter doors26 Wall finishesPlasterboard to wall39 Clay tiling to wall37 Floor finishesVinyl sheet floor covering17 Vinyl tile to floor covering18 Linoleum floor covering20 Carpet floor covering13 Parquet tile floor covering39 Epoxy resin based floor covering20 Timber skirting51 Plastic skirting27 Ceiling FinishesSuspended ceilings24 FittingsKitchen wall units18 Kitchen floor units18 Disposal InstallationsCast iron sanitary fittings and soil vent pipes55 Plastic sanitary fittings and soil vent pipes36 Render to blockwork walluPVC windowsTypical Life Expectancy of Building ComponentsPage 3 of 3 ElementComponent NameTypical Life Expectancy (Years)

3 Water InstallationsPlastic water storage tank36 GRP water storage tank3834 Copper pipework47 Heat SourceBoiler20 Solid fuel back boiler21 Major pump14 Space Heating andRadiators29 Air TreatmentThermostatic radiator valves17 Aluminium air-conditioning ductwork34 Steel air-conditioning ductwork30 Air-conditioning heater17 Air-conditioning chiller17 Air-conditioning pump15 Air-conditioning fan15 Electrical InstallationsHeating programme controller/timer18 Thermostat controls17 Electric lighting circuits32 Electric power circuit30 Fuse box/consumer unit29 Power outlet socket28 Light switch2716 Fluorescent tube4 Incandescent light bulb2 Lift InstallationsTraction drive passenger lift30 Hydraulic passenger lift28 Industrial scissor lift22 Protective InstallationsWet riser sprinkler system33 Dry riser sprinkler system42 Sprinkler head26 Site WorksTimber fence22 Steel fence28 Concrete chain and post fence2537 Concrete paving slab pathway31 Block paving36 Concrete surfacing to roadways30 Macadam surfacing to roadways24uPVC water storage tankFluorescent luminaireInsitu concrete pathway