Defines the safe sequence of works for the Cat-A fit-out at Linnet Lane, Manchester — Levels 4–6 mechanical first-fix and ceiling-grid installation. Each step is gated on inspection sign-off. Read alongside the corresponding Risk Assessment Sheet (Output 03 — BAI-RAS-RVS-EDI-001 pattern).
This Method Statement was produced using AI-assisted structured generation as part of the RAMS Factory™ workflow. The sequence of operations, resource allocations and inspection gates have been reviewed and confirmed by a competent person. This document is Output 04 of 11. It must be read alongside the corresponding Risk Assessment Sheet (Output 03), the Permits & Isolations Checklist (Output 05) and the project Toolbox Talk (Output 11).
18,400 sq ft over three floors. Mechanical risers terminate at Level 3; this Method Statement covers the works above that point. Programme: 6 weeks total, mobilisation Week 1, M&E first fix Weeks 2–4, ceiling grid Weeks 4–5, snagging Week 6.
Each step has explicit pre-conditions and acceptance criteria. Step N+1 cannot start until Step N has been inspected and signed off. The site supervisor holds the inspection register; BAI cross-references it weekly via the QA Checklist (Output 09).
Establish on-site welfare unit (jubilee, drying room, toilet block) at car-park location agreed with building manager. Confirm 110V supply at distribution board. Mark exclusion zones at lift lobby entries to Levels 4–6 with barriers + signage. Issue site induction to all incoming operatives.
Install perforated steel cable tray to design layout (drawing refs LNL-M-201 to LNL-M-203). Tray spans 6m clear; intermediate hangers at 1.5m centres per BS 6651:1999. Earth-bond every tray at section joints. Hold for inspection by M&E lead before cable pull.
Pull cables per schedule LNL-CABLE-04. SWA armoured for distribution; LSF for branch circuits. Mark every cable end at both terminations. Test continuity, insulation resistance and earth-loop impedance to BS 7671 18th Edition before energisation.
Install copper chilled-water pipework (compression jointed to BS EN 1057) and condensate drainage to FCU and AHU positions. Pressure-test to 1.5× working pressure for 60 minutes; condensate run-fall checked at 1:100 minimum. No hot works on this pipe run — all joints mechanical.
Install exposed-grid ceiling system (Armstrong Prelude 24mm or equivalent). Grid level checked with laser at 4 corners + 2 mid-points per zone. Service penetrations cut to within 5mm tolerance; edge trim seated on perimeter angle. Tiles loose-laid for snagging access.
Commissioning per BSRIA BG 49/2015. Air-tightness pressure test on FCU connections; chilled-water flush + flow balance per design schedule LNL-MECH-FLOW. Snag list raised by client rep; 48-hour close-out target on Cat-A snags.
Final clean of all worked areas. O&M manuals to client (printed + digital). As-built drawings updated and re-issued. Remove welfare unit, restore car-park barriers. Practical Completion certificate signed by client representative.
Resource ceiling for this Method Statement. Daily allocation tracked by site supervisor against the weekly programme. Substitutions require RAMS revision (raise via Job Intake form, Output 01).
This Method Statement is gated on the RAS being signed off. Do not proceed without it.