Urutan kerja
Engineering rough-in work sequence
Rough-in engineering fixes the routes that later disappear behind floors, walls and ceilings. The main risk is not only missing pipes or cables, but conflicts, poor access and untested hidden work.
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Urutan ini terhubung dengan kalkulator, checklist dan halaman biaya kesalahan agar planning dan kontrol risiko tetap satu sistem.
Urutan pekerjaan yang direkomendasikan
01 Coordinate routes and service zones
Prevent MEP clashes before cutting, chasing or closing structure.
- Overlay plumbing, drainage, electrical, low-voltage, ventilation and AC routes.
- Reserve shafts, ceiling voids, service access and equipment clearances.
- Confirm condensate drainage, fresh-air routes and exhaust discharge points.
Hold point: Rough-in installation should not start until service routes and access zones are coordinated.
Alat, peralatan dan akses: Coordination drawings, Laser level, Chalk line, Access zone markup
02 Install conduits, pipes, ducts and sleeves
Place hidden services in the right position with future maintenance in mind.
- Install pipework, conduit, cable trays, drains, sleeves and supports.
- Maintain slopes for drainage and condensate lines.
- Protect penetrations, fire/smoke barriers and waterproofing interfaces.
Hold point: Wall or ceiling closure should wait until supports, slopes and penetration details are checked.
Alat, peralatan dan akses: Pipe cutter, Conduit bender, Core drill, Duct tools, Support fixings
03 Test and record hidden work
Make hidden engineering auditable before finishes create expensive access problems.
- Pressure-test water systems and leak-check drainage where possible.
- Continuity-test cable runs and label both ends.
- Photograph routes with dimensions before closing walls, floors or ceilings.
Hold point: Do not close assemblies until tests, labels and photo records are complete.
Alat, peralatan dan akses: Pressure test pump, Multimeter, Cable toner, Label printer, Photo log
Alat, peralatan dan akses
Routing and supports
- Laser level
- Core drill
- Conduit bender
- Pipe cutter
- Duct snips
Testing
- Pressure test pump
- Multimeter
- Cable toner
- Manometer
- Smoke pencil
Records
- Label printer
- Photo log
- Route drawings
- Access hatch schedule
Norma konsumsi material untuk perencanaan
Rentang konsumsi adalah benchmark perencanaan. Kuantitas final harus dicek terhadap gambar, spesifikasi, kode lokal dan data supplier.
| Material atau resource | Basis | Rentang rencana | Unit | Catatan |
| Electrical conduit | Gross floor area | 1.5-3.5 | lm/m2 | Higher for smart-home, lighting scenes and dense outlets. |
| Water and drainage pipe | Wet room | 6-14 | lm/room | Fixture count gives better accuracy. |
| AC refrigerant and condensate routes | Indoor AC unit | 3-12 | lm/unit | Depends on outdoor unit distance and drainage route. |
| Ductwork surface area | Served floor area | 0.20-0.60 | m2/m2 | Use for ducted AC or fresh-air systems. |
Quality gate sebelum lanjut
- MEP routes are coordinated with structure, ceiling levels and access hatches.
- Drainage and condensate slopes are visible and checked.
- Water systems are pressure-tested before closure.
- Hidden work photo archive includes routes, dimensions and labels.
Istilah glossary terkait
Pemasangan awal jaringan air bersih dan air buangan.
Pekerjaan conduit, jalur kabel, dan panel sebelum finishing.
Sistem suplai atau buang udara dengan kipas ketika aliran alami tidak cukup.
Jalur drainase yang membuang air hasil proses pendinginan AC.
Sistem pendingin yang mendistribusikan udara melalui duct, plenum, diffuser, dan return air.