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TRADES - WHO DOES WHAT? GroundworkersBricklayersCarpenters / joinersRoofersPlumbers and heating engineersPlasterers, and dry linersDecoratorsLabourersGroundworkersCreate entry into site and lay hard base for access & deliveries Clear site, strip topsoil and store for re-use Set out foundations (or by SB, architect or surveyor) Excavate foundation trenches Load spoil into dumpers for on site storage or removal by lorry Clean out bottom of trenches and position pegs to mark surface level of concrete Pour and level concrete foundations Level out subsoil in oversite Backfill trenches to outer wall Position concrete floor beams on DPC and lay infill blocks between, and brush in grout Or – compact hardcore to oversite, sand blind, lay DPM and insulation, and oversite concrete Excavate trenches for drainage – both foul and surface water Lay drainage runs on pea-shingle with pipe upstands through ground floor Fill all below ground drainage by ‘haunching’ with pea shingle Build inspection drainage chambers Connect foul drainage to sewer (or up to legal boundary in street for drainage authority to connect) Or – install private drainage system (e.g. septic tank) and weeper pipes or outlets Construct soakaways and connect surface water drainage Backfill drainage trenches Excavate all water, gas & electric or oil supply pipe trenches and backfill when supplies laid Carry out hard and soft landscaping and fencing Lay driveways, paths and patios
BricklayersLay foundation blockwork to DPC level (or by groundworkers) Fix lintels for drainage exit pipes, and cavity sleeving for services Build in cranked ventilators for beam & block ground floors or airbricks (or by groundworkers) Fill cavities to lean-mix concrete, to approx 225mm below DPC (or by groundworkers) Bed DPC For suspended timber ground floors only, bed timber floor plates and build any sub-floor sleeper walls Build superstructure walls in brick and blockwork Clean off excess or spilled mortar to face of brickwork and cavities as work progresses Install cavity insulation and all wall ties as walls are built Fix cavity closers to reveals of window & door openings Fix frames for windows & doors Build in meter boxes Bed lintels over openings, and fit cavity trays over lintel with weep holes to walls Lay padstones to support ends and position any beams Bed wallplate Build up gable ends Build chimney stack through roof Build masonry chimney liners Build brick fireplaces Point up flashings Make good any damage, e.g. holes from scaffold putlogs Build garden walls Carpenters / joinersFirst Fix For suspended timber ground floors only: cut and lay beams and floorboards Cut and lay first floor joists, trimmers and noggins Fix door linings (casings) to openings in ground floor blockwork Lay first floor decking (boards or chipboard) Construct studwork internal walls and partitioning (mainly upper floors) Fix insulation to studwork walls (and timber floors where necessary) Install window boards Install staircase flight Prepare and fix garage door frames Hang temporary external doors Construct tank decks in loft (if not pressurised system) Board out loft (if required) Fit kitchen units carcassing Roof structureErect roof trusses or construct traditional cut timber roof structure, including any hips, valleys, dormers roof lights, and construct subsidiary roofs such as bays and porches, and (only in Scotland) lay timber sarking boarding Fix fascias and soffits, including any vents Fix bargeboards Second Fix Box out pipework Lay insulation to timber floors, and decking for any floating floors Assemble and fit stair newel posts, rails and balustrading Fix skirting, architraves, and timber mouldings Fit patio doors or ‘French windows’ Fit garage doors Build fitted wardrobes and cupboards and fit out including slatted shelves to airing cupboard Fit loft hatch and loft ladder Fit timber floor coverings Hang external doors Hang internal doors Complete kitchen units
RoofersLay breather membrane ‘underfelt’ across rafters and rough batten Lay warm (outer layer) insulation Fix counter battens Fix GRP valleys (plumber or leadworker lay lead valleys) Or - lay valley tiles Bed undercloak at gable verges Gauge and fix battens to suit tiles or slates Lay and secure roof tiles or slates Bed ridge and hip tiles Point up verges (to gap between underside of tiles and undercloak) Fit lead flashings to chimneys and roof/wall abutments Interleave lead soakers Fit skirts to vent pipes and flues projecting through roof Clean off excess or spilled mortar
Plumbers and heating engineersInstall standpipe for site water supply Lay 1st fix supply pipework and CH pipes Place cold water and header tanks in loft (where not pressurised system) Run gas supply pipes for boiler and outlet pipes Make up lead flashings and soakers for roof Fix guttering and downpipes (or labourers) Fix vent pipes through drainage upstands and take through roof slope Fix skirts to vent pipes Fit hot water cylinder Install and connect up CH rads Install and connect up UFH loops to the manifold Fit boiler and connect to system (power supply and bonding by electrician) Attend to flues and chimney liners Connect boiler to fuel supply (gas, oil, LPG etc), fire up boiler and commission system Fit sanitary ware and connect to h&c supply and waste Plumb in kitchen and utility sinks, washing machines, dishwashers etc Lag all exposed supply pipes
ElectriciansInstall temporary building supply Install and connect earthing rod First Fix Lay carcassing witring for circuits, drilling joists where necessary Fix backplates for switches, sockets and controls Second Fix Fit and wire up switch and socket faceplates and controls Fit and wire up pendants and light fittings Fit and wire up external lighting Fit and wire up extractor fans and cooker hoods Cross bond and earth pipes and sanitaryware Fit and wire up consumer unit Wire up thermostats and programmers Attend to wiring and testing of boiler and CH (with plumber) Plasterers and dry linersTack ceilings with plasterboard Dry line inner main walls as necessary Tape and fill joints, and fix all beading and lathing Skim boarded walls and ceilings Float and set masonry walls Fix any mouldings and coving Render external walls Screed floors DecoratorsSnag and rub down wall and ceiling surfaces Fill holes and blemishes Rub down joinery and fill and knot all timber to be painted Prime or undercoat all internal and external joinery and 2nd fix timber Gloss paint or stain all internal and external joinery Paint walls with one mist coat emulsion and one top coat Paint ceilings with 2 coats emulsion Paint external render with 2 coats masonry paint
Tilers Lay all floor tiles with suitable adhesive Grout all tiles Fix all wall tiles using spacers Grout wall tiles
LabourersHumping and offloading materials Fit loft ceiling insulation Fitting rainwater goods?
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