Unitized Curtain Wall Installation Method with Full ITP

More than a static template

Unlike a downloadable Word or PDF template, this method statement is an AI-assisted editable starting point connected directly to a matching Inspection and Test Plan. Every section is structured, project-adaptable, and ready to export.

AI-assisted drafting — Customize every section with AI for your specific project scope.
Linked ITP — A matching inspection and test plan is generated alongside the method statement.
Multiple export formats — Download as a formatted PDF or editable Excel spreadsheet.
Editable starting point, not a final document — Review, verify, and adjust all content against your project requirements before use.

Static template vs. Quollnet workflow

Feature	Static template	Quollnet
Project-specific content	Manual fill-in required	AI-assisted customization
Linked ITP	Separate document, no link	Matching ITP included
Export formats	Usually PDF only	PDF and Excel
Structured sections	Free-form layout	13 standardized sections
Saved to your account	Local file only	Cloud-saved, reusable
Content accuracy	You verify everything	AI-assisted, you still verify
Cost	Often free but time-intensive	Free to customize and download

What you can customize

When you save this method statement to your account, every section becomes editable. The following 13 sections are included:

Scope — Defines the activity and its boundaries.
References — Standards, specifications, and drawings.
Responsibilities — Roles and accountabilities.
Resources — Labour, plant, and equipment summary.
Materials — Materials and compliance requirements.
Equipment — Tools and equipment details.
Prerequisites — Hold points and pre-conditions.
Method sequence — Step-by-step construction sequence.
Safety controls — HSE risk controls and PPE.
Environmental controls — Environmental mitigation measures.
QA/QC — Quality inspection and test requirements.
ITP — Inspection and Test Plan table (has its own page).
Attachments — Referenced drawings and documentation.

Why this method statement is used

This method statement is used to define and communicate the approved procedure for carrying out method statement: installation of unitized curtain wall panels (tower crane/hoist) on site. It ensures the work is planned in advance, the correct resources and controls are in place, and all personnel understand responsibilities, sequence, quality requirements, and safety controls before work begins. It aligns site execution with the documented scope and acceptance expectations.

Who uses this method statement

This method statement is used by contractors, site supervisors, project engineers, QA/QC engineers, HSE officers, consultants, and client representatives. It serves as a shared reference for planning, execution, supervision, inspection, and approval of the activity on site.

When it is prepared and submitted

The method statement is prepared before the work activity starts and submitted as part of the pre-construction documentation package for review and approval.

Who reviews or approves it

The method statement is usually submitted to the client representative, consultant, resident engineer, or project management consultant for review and approval before the work commences.

Important approval note

This method statement is an AI-assisted editable starting point, not a pre-approved document. Before use on any project, all content must be reviewed and approved by the relevant parties (superintendent, principal contractor, or client representative) in accordance with your contract and project quality plan.

For example: if your specification requires a departure from a referenced standard, that departure must be documented and approved separately — this method statement will not capture that automatically. Always verify against your applicable drawings, specifications, and regulatory requirements.

Method statement content

Scope

Work Summary

This method statement covers the end-to-end installation of unitized curtain wall panels on using a tower crane or material hoist. It includes survey setting-out, bracket and rail alignment, safe lifting and handling of unitized panels, interlocking and engagement of stack/mullion joints, gasket compression checks, weather-seal continuity, movement joint treatment at slab edges and inter-panel joints, QA/QC dimensional verification, and formal hold points at each floor level prior to progressing upwards.

Included Activities

Pre-installation verification: design/shop drawing approvals, mock-up approval, delivery inspection, lifting/rigging plan, permits, and toolbox talks.
Survey control: transfer of primary control to façade grid, bracket and rail alignment tolerances.
Anchor/bracket/rail installation (where applicable to the system), shimming, torqueing, and verification.
Lifting, landing, and installation of unitized panels from tower crane or hoist with dedicated spreader/vacuum lifter and taglines.
Interlocking of male/female profiles, stack joint engagement, gasket compression verification, and temporary restraints removal.
Weather seal continuity works, sealant application, and backer rod installation as required by the system supplier.
Movement joints: slab edge/head-of-wall allowances, thermal and seismic movement provisions, and compatible fire/smoke barriers where specified [Verify per project specifications].
QA/QC inspections, records, and field performance testing per ITP.
Housekeeping, protection, and turnover documentation.

Exclusions

Structural modification of primary structure.
Permanent power supply, lightning protection.
Commissioning of BMU systems.
Repair of pre-existing substrate defects beyond minor grinding/shimming.

References

Document Type	Reference / Number	Notes
Standard	CWCT (Centre for Window & Cladding Technology)	Apply project-appropriate guidance [Verify per project specifications].
BS EN	EN 13830
BS EN	EN 12152/12154/12155
ASTM	ASTM E283, E331, E330	Where ASTM framework is adopted [Verify per project specifications].
ASTM/AAMA	ASTM E783, E1105; AAMA 501.2	Field testing regime per ITP [Verify per project specifications].
ISO/ASTM	ISO 11600; ASTM C920
BS EN	EN 13155; EN 12100	Plus local lifting regulations [Verify per project HSE plan and local regulations].
Eurocode	EN 1991-1-4	For lift wind limits see method; project-specific design governs.
BS EN	EN 10204
ISO	ISO 9001/14001/45001	Apply via project IMS [Verify per project HSE plan and local regulations].

Responsibilities

Role	Responsibility	Name / Party
Management	Project Manager	Main Contractor
Engineering	Façade Manager	Main Contractor
Lifting	Appointed Person	Main Contractor
Operations	Operator	Approved Subcontractor
Lifting	Rigger	Approved Subcontractor
Trades	Foreman	Façade Subcontractor
Survey	Surveyor	Main Contractor
Quality	QA/QC	Main Contractor
HSE	HSE	Main Contractor
Independent	Tester	Independent

Resources

Resource Type	Description	Quantity
Manpower	Skilled unitized system installers	6-10
Manpower	Certified riggers and signallers	2-4
Manpower	Licensed operators with current medical and competency	1-2
Manpower	Total station/laser scanning as required	1

Materials

Material	Specification / Grade	Quantity	Remarks
Aluminium/glass unitized panels	Per approved shop drawings & samples
Brackets, rails, cleats	Per structural calculations
Stainless M12–M16, HDPE shims	Manufacturer data [Verify]
Silicone, primers, cleaners	Manufacturer TDS/SDS
Mineral wool/foil facings	As per design

Equipment

Equipment	Capacity / Type	Quantity	Inspection Required
Tower crane/hoist	Per lift plan [Verify]	1	Yes
Spreader/lifting frame	>1.5x max panel wt [Verify]	1	Yes
Vacuum lifter/slings	>2x panel wt [Verify]	1	Yes
MEWP/scaffold		As required	Yes
Total station/laser		1 set	Yes
Torque wrench	Up to 300 Nm [Verify]	2	Yes
Gauges/jigs		Set	No

Prerequisites

Approvals and Documentation

Approved shop drawings, system calculations, interface details, sealant compatibility letters, and mock-up test approvals (air/water/structural) [Verify per project specifications].
Approved lifting plan signed by Appointed Person; permits to lift and work at height issued [Verify per project HSE plan and local regulations].
ITP and checklists issued. Calibration certificates for survey and torque tools in date.

Site Readiness

Slab edges surveyed; embeds/anchors released; structural openings within tolerance; fire/smoke barrier areas ready.
Edge protection in place; access routes clear; crane/hoist commissioned and certified.
Weather within limits: sustained wind ≤ 10 m/s (22 mph) and gusts ≤ 13 m/s (29 mph) for panel lifts unless manufacturer specifies stricter limits [Verify per lift plan].

Materials and Storage

Panels delivered with protective packing, stored vertical on A‑frames with spacers; shaded/ventilated; identification labels visible.
Sealants, primers, gaskets, and shims verified against submittals; shelf life and storage per manufacturer.

Briefings

Task-specific TBT conducted daily, covering pinch/crush hazards, glass handling, wind limits, exclusion zones, communication signals, and emergency rescue plan.
Coordination meeting with structure, MEP, and BMU trades to confirm interfaces and daily work faces.

Method Sequence

Step	Activity	Description	Responsibility	Inspection / Hold Point
1	Establish Survey Control & Set-Out	Transfer primary control to façade grid using total station. Mark vertical control at corners and every 6–9 m. Establish datum panel line and elevation at first installed floor.	Surveyor	Yes
2	Bracket/Rail Installation & Shimming	Fix brackets/rails to embeds/anchors as per drawings. Shim to achieve line/level. Do not exceed max shim stack height [Verify per design].	Façade Installers	Yes
3	Pre-Lift Panel Inspection	At laydown, verify panel ID, orientation, glazing condition, gaskets, interlocks, and lifting points. Fit temporary protection as needed.	QA/QC + Rigger	Yes
4	Rigging & Test Lift	Attach lifting frame/vacuum lifter as per manufacturer; confirm COG; perform 200–300 mm test lift to verify balance and suction.	Appointed Person + Riggers	Yes
5	Lift & Land to Elevation	Crane/hoist lifts under AP control. Maintain exclusion zone. Use two taglines. Stop lift if wind exceeds limit or load unstable.	Crane Operator + Riggers	Yes
6	Positioning & Temporary Restraint	Offer panel to brackets/receivers. Engage locating pins. Apply temporary restraints/clamps as per system method.	Façade Installers	Yes
7	Fixing & Torqueing	Install primary fixings/cleats. Tighten to specified torque using calibrated wrench. Mark bolts after torque (paint witness).	Façade Installers	Yes
8	Interlocking & Gasket Compression Check	Engage male/female profiles and stack joint. Confirm gasket compression with go/no-go gauge or joint-width verification per system data.	Façade Installers + QA/QC	Yes
9	Weather Seal Continuity	Clean substrates (two-rag method), prime if required, install backer rod and gun sealant. Tool to achieve required bead geometry.	Sealant Applicator	Yes
10	Movement Joint Treatment	Verify clearances at slab edge/head and perimeter fire barrier installation where specified. Install covers/flashings per detail.	Façade Installers + Firestop Specialist	Yes
11	Dimensional & Visual QA/QC	Check plumb, level, plane, joint alignment, glass quality, drainage/weep paths, and labels removal as required.	QA/QC	Yes
12	Field Testing (Sampling)	Conduct AAMA 501.2 hose test or ASTM E1105/E783 on designated bays after sealant cure.	Third-Party Tester + QA/QC	Yes
13	Floor-Level Hold Point & Release	Submit floor package for inspection with records (torque logs, survey, sealant batches). Obtain client/consultant sign-off before next level.	QA/QC + Client Rep	Yes
14	Protection & Housekeeping	Install protective films/edge guards if required. Remove waste/packaging. Secure any temporary works.	Façade Installers	Yes

Safety Controls

Task-Specific Hazards and Controls

Hazard: Falling from height at slab edge
Likely consequence: Major injury or fatality
Engineering/procedural control: Install edge protection (guardrails/toe boards) and use MEWPs/scaffolds with certified anchorage. 100% tie-off with EN 361 full-body harness and double lanyard when working within 2 m of edge.
Required PPE: Helmet with chin strap, full-body harness, lanyards with shock absorber, safety boots, cut-resistant gloves, eye protection.
Collective preventive measure: Perimeter edge protection, netting where practical.
Inspection/permit/supervision: Daily scaffold/MEWP inspections; Work at Height PTW; supervision by Site Engineer [Verify per project HSE plan and local regulations].
Hazard: Crane/hoist lifting and suspended loads
Likely consequence: Crush injuries, struck-by, fatality
Engineering/procedural control: Appointed Person lift plan; certified crane/hoist; exclusion zones barricaded; taglines; standard hand signals/radios; stop work above wind limits; no lifting over personnel; only certified rigging attachments.
Required PPE: Helmet with chin strap, gloves, high-vis, safety boots, radios for signalman.
Collective preventive measure: Physical exclusion barriers and banksman control.
Inspection/permit/supervision: PTW to lift; pre-use checks; certificates in date; lifting supervision throughout.
Hazard: Glass breakage and falling fragments
Likely consequence: Lacerations, falling debris injuries
Engineering/procedural control: Use dual-circuit vacuum lifter or padded slings; avoid impact; maintain soft landing; protect leading edges; do not drill/cut on site unless approved; exclusion zone below.
Required PPE: Cut-resistant gloves/sleeves (ANSI A5–A6), safety spectacles/face shield, long sleeves.
Collective preventive measure: Debris netting below workface.
Inspection/permit/supervision: Inspect glass at delivery; replace damaged panels; HSE oversight.
Hazard: Pinch/crush during interlocking and temporary restraint
Likely consequence: Finger/hand injuries
Engineering/procedural control: Use panel handles; predefined hand positions; use pry bars and alignment tools instead of fingers in joints; communicate before engaging interlocks.
Required PPE: Cut-resistant gloves, knuckle protection.
Collective preventive measure: Task sequencing to avoid simultaneous conflicting actions.
Inspection/permit/supervision: Foreman supervision; TBT briefing sign-off.
Hazard: Uncontrolled movement due to wind gusts
Likely consequence: Load swing, loss of control, collision
Engineering/procedural control: Monitor real-time wind; postpone lifts above limits; use two taglines; position crane to minimize sail effect; avoid lifting near building corners during gusts.
Required PPE: Standard site PPE; radios for team.
Collective preventive measure: Weather monitoring station at roof and workface.
Inspection/permit/supervision: AP to authorize lift based on conditions; stop-work authority to all.
Hazard: Sealant/primer chemical exposure
Likely consequence: Dermatitis, respiratory irritation, eye injury
Engineering/procedural control: Review SDS; use compatible cleaners; ensure ventilation; avoid ignition sources with solvent-based primers; closed cartridges where possible.
Required PPE: Chemical-resistant nitrile gloves, safety glasses, long sleeves; RPE if required by SDS.
Collective preventive measure: Local ventilation; controlled storage.
Inspection/permit/supervision: COSHH/chemical handling assessment; SDS available; HSE inspections.
Hazard: Manual handling of heavy components
Likely consequence: Strains/sprains
Engineering/procedural control: Team lifts; use dollies/A-frames; keep loads close to body; rotate tasks.
Required PPE: Safety boots, gloves with grip.
Collective preventive measure: Mechanical aids preference over manual handling.
Inspection/permit/supervision: Manual handling training records verified.
Hazard: Interface with post-tensioned slabs/embedded services
Likely consequence: Structural damage, cable strike
Engineering/procedural control: Confirm as-built PT/embedded services locations; do not drill outside approved zones; use manufacturer-approved anchors only.
Required PPE: Standard PPE.
Collective preventive measure: Permit to drill (if any); marked no-drill zones.
Inspection/permit/supervision: Engineer sign-off on bracket fixings; records kept.

Environmental Controls

Environmental Risks and Controls

Packaging and offcuts waste
Control: Segregate aluminum, glass, timber, and plastic for recycling; provide labeled skips; record weights.
Sealant VOCs and solvent use
Control: Select low-VOC products where possible; store sealed; apply in well-ventilated areas; prevent spills; keep spill kits available.
Noise from crane operations/MEWPs and impact tools
Control: Work within permitted hours; use low-noise tools where feasible; maintain equipment.
Water discharge from field testing
Control: Capture and direct water to drains via sediment socks; prevent run-off over public areas; obtain permit for discharge if required [Verify per local regulations].
Dust/debris from drilling/grinding (if any local correction)
Control: Local extraction; wet methods; immediate cleanup; prevent material from falling off edges with debris netting.
Energy and idling
Control: Shut off engines when idle; schedule lifts to reduce waiting; maintain equipment for efficiency.
Protection of installed façade
Control: Use protective films/edge guards; prohibit abrasive cleaners; prevent contact with cementitious runoff.

QA/QC Requirements

Quality Controls

Material traceability: Maintain EN 10204 3.1 certificates for metallic components; retain sealant batch numbers and expiry.
Calibration: Total station, laser tools, torque wrenches with valid calibration certificates.
Tolerances: Use CWCT-typical tolerances unless project specifies otherwise: plumb/level within ±3 mm per 3 m and ±5 mm overall; joint alignment ±2 mm; panel step ≤ 2 mm; bracket position ±2 mm [Verify per project specifications].
Fastening: Apply manufacturer torque; record bolt ID, location, and achieved torque; witness mark.
Gasket compression: Verify continuous engagement; target 30–50% compression unless otherwise specified; use go/no-go gauge or documented method [Verify].
Sealant works: Substrate cleaning method, primer use, bead dimensions, tooling quality, cure verification before testing; maintain environmental conditions within TDS ranges (temperature/substrate moisture) [Verify].
Movement joints: Verify design allowances and fire/smoke barrier integrity; photo records prior to close-up.
Field testing: Perform per ITP sampling plan (e.g., AAMA 501.2 early; ASTM E1105/E783 at agreed frequency) with acceptance per project criteria [Verify].
Documentation: ITP checklists, survey as-builts, torque logs, sealant batch logs, NCRs/Corrective actions, floor-level hold point certificates.

Hold Points

HP-1: Bracket/Rail alignment acceptance prior to panel installation on each new bay/elevation.
HP-2: Rigging arrangement approval before first lift and any change of panel type/weight.
HP-3: Interlock and gasket compression verification on first two panels per elevation.
HP-4: Movement joint/fire barrier close-up inspection before proceeding along the run.
HP-5: Floor-level completion acceptance before starting the level above.

Attachments

Approved shop drawings and elevations
Lift plan and rigging drawings with SWLs and wind limits
Panel numbering and installation sequence map
Sealant manufacturer TDS/SDS and compatibility letters
Torque wrench calibration certificates
Survey control and as-built reports
ITP forms and checklists (blank and completed samples)
Risk assessment and method statement (RAMS) sign-off sheets
Mock-up and laboratory test reports (air/water/structural)
Emergency rescue plan for work at height

This content is a read-only public reference. Download or customize to get an editable version.

ITP preview

The first inspection activities from the linked ITP for Method Statement: Installation of Unitized Curtain Wall Panels (Tower Crane/Hoist):

Activity	Inspection / Test	Acceptance Criteria	Responsibility	Record
Survey control transfer and façade set-out	Check lines/levels with total station	Plumb/level within specified tolerances [Verify].	Surveyor / QA/QC	Survey report
Bracket/Rail installation and torqueing (HP-1)	Dimensional check; torque verification	Positions ±2 mm; torque per manufacturer [Verify].	Façade Manager / QA/QC	Bracket checklist; torque log
Rigging equipment readiness (HP-2)	Certs, tags, vacuum leak-down	Certification valid; leak rates within OEM limits.	Appointed Person / QA/QC	Rigging inspection record

Showing 3 of 11 inspection activities. View full ITP →

Related Inspection and Test Plan

An Inspection and Test Plan (ITP) is available for Method Statement: Installation of Unitized Curtain Wall Panels (Tower Crane/Hoist). The ITP defines the inspection activities, acceptance criteria, hold and witness points, responsible parties, and records required to verify the work described in this method statement.

View the Method Statement: Installation of Unitized Curtain Wall Panels (Tower Crane/Hoist) ITP →

Frequently asked questions

Typical limit is ≤10 m/s sustained and ≤13 m/s gusts, but the lift plan and equipment manufacturer requirements govern. Always verify per project HSE plan.

Use a system-specific go/no-go gauge or measure joint width against design to confirm target compression, typically 30–50% for EPDM. Verify with supplier data.

After sealant has cured per TDS, commonly 7–14 days for silicones. Conduct tests on the first installed bays and at an agreed sampling frequency.

Common targets are plumb/level within ±3 mm per 3 m and ±5 mm overall, joint alignment ±2 mm, and panel step ≤2 mm. Confirm with project specifications.

Torque logs, survey/as-built records, sealant batch logs, inspection checklists, snag closures, and any required field test reports for that level.

Method Statement: Installation of Unitized Curtain Wall Panels (Tower Crane/Hoist) – Method Statement