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Method Statement for Installation of Curtain Wall & Glazing

📅 April 2026

✎ RAMSProZone Editorial Team

⏲ 20 min read

Method Statement

Curtain Wall

Glazing

QHSE

📋 Table of Contents

1. Introduction & Background
2. Purpose and Scope
3. Definitions and Abbreviations
4. Applicable Standards, Legislation & Regulatory References
5. Roles and Responsibilities
6. Pre-Task Requirements and Approvals
7. Resources, Equipment & Materials
8. Step-by-Step Procedure
9. Risk Assessment Summary
10. Quality Control & Inspection Points
11. Environmental Controls and Sustainability
12. Emergency Procedures and Response
13. Communication and Coordination
14. Record Keeping and Documentation
15. Training and Competency Requirements
16. References
17. Conclusion and Summary
18. Frequently Asked Questions

Doc Ref	Revision	Date	Prepared By	Reviewed By	Approved By	Status
RPZ-CIV-2026-001	Rev. 00	Jan 2026	Site Engineer	QA/QC Manager	Project Manager	Draft
RPZ-CIV-2026-001	Rev. 01	Mar 2026	Site Engineer	HSE Manager	Project Manager	Issued for Construction
RPZ-CIV-2026-001	Rev. 02	Apr 2026	Site Engineer	QA/QC Manager	Project Director	Current — IFC

Introduction & Background

This Method Statement for Installation of Curtain Wall & Glazing sets out the complete sequential procedure, health, safety and environmental (HSE) controls, quality inspection requirements, and competency criteria for the installation of curtain wall systems and associated glazing works on construction projects. Curtain wall and glazing installations represent one of the most technically demanding activities in the building envelope sector, requiring the precise coordination of structural engineering, facade engineering, waterproofing, fire-stopping, and acoustic performance — all executed at height with significant manual handling and working-at-height hazards.

Modern curtain wall systems include stick-built (site-assembled), unitised (factory-fabricated panel), semi-unitised, and hybrid configurations. Each system type imposes specific sequencing, crane requirements, specialist fixing details, and tolerance management disciplines. This document addresses the most prevalent commercial configurations: aluminium-framed stick and unitised systems with structural silicone glazing (SSG), pressure-equalised systems, and back-painted glass spandrel panels.

The global expansion of high-rise and large-scale commercial construction has made the safe and quality-compliant installation of curtain wall and glazing a critical competency area for project teams. Falls from height, glass breakage, manual handling injuries, crane lifting failures, and silicone sealant exposure are among the leading causes of injury and quality defects in facade works worldwide. This method statement has been prepared in accordance with ISO 45001:2018, ISO 9001:2015, and applicable national building codes to provide a single-source operational reference for all site personnel involved in curtain wall and glazing installation activities.

⚖ Legal Notice: This method statement is a generic template document. It must be reviewed, adapted, and formally approved by a competent engineer or QHSE professional before use on any specific project. Regulatory requirements vary by jurisdiction. Users assume full responsibility for compliance with applicable local legislation.

Purpose and Scope

The purpose of this Method Statement for Curtain Wall & Glazing Installation is to define and control the procedures, sequence of works, hazard controls, and quality acceptance criteria governing the safe, compliant, and defect-free installation of aluminium curtain wall framing and glazing units on the project site, thereby protecting all site personnel, third parties, and adjacent properties; ensuring compliance with contractual specifications, applicable standards, and statutory regulations; and providing a defensible audit trail of operational controls.

Scope of application:

• ▶ Inclusions: Delivery, offloading, storage, hoisting, and positioning of curtain wall mullions, transoms, cladding panels, and glazing units; structural silicone application; gasket and weather-seal installation; water drainage testing; fire stopping at slab interfaces; and snagging/handover.
• ▶ Exclusions: Design engineering, facade engineering certification, structural steelwork, and internal glazed partitions unless specifically noted.
• ▶ Project types: Commercial office towers, mixed-use developments, airports, shopping centres, hotels, and institutional buildings.
• ▶ System types covered: Stick-built systems, unitised systems, semi-unitised systems, structural silicone glazing (SSG), and point-fixed glazing (PFG) where noted.
• ▶ Working environment: External works at height, internal glazing to atria, and perimeter glazing to low-rise elevations.

Definitions and Abbreviations

Term / Abbreviation	Definition
Curtain Wall	A non-load-bearing external cladding system attached to the structural frame of a building, forming the building envelope; it carries only its own weight and wind/thermal loads.
Mullion	A vertical structural member of a curtain wall framing system that spans between floors and carries the loads from transoms, infill panels, and glazing.
Transom	A horizontal structural member in a curtain wall system, spanning between mullions, supporting infill panels or glazing.
Unitised System	A curtain wall system in which factory-assembled panels (each comprising a complete module of frame and infill) are hoisted and connected directly to the building structure floor-by-floor.
Stick System	A curtain wall system where mullions, transoms, and infill panels are erected and assembled on-site in sequential stages.
SSG	Structural Silicone Glazing — a method of bonding glass panels to the curtain wall frame using high-performance structural silicone adhesive, providing a flush, frameless aesthetic.
IGU	Insulating Glass Unit — a double- or triple-glazed unit consisting of two or more glass panes separated by a spacer bar and sealed to create an insulating air/gas cavity.
WAH	Working at Height — any work in a location from which a person could fall a distance that could cause injury, as defined under EN ISO 14122 and applicable WAH regulations.
MEWP	Mobile Elevating Work Platform — equipment such as scissor lifts, boom lifts, and spider lifts used to provide elevated access for facade installation works.
PTW	Permit to Work — a formal written system used to control non-routine or high-risk activities on site, ensuring hazard identification and control measures are in place.
IFC	Issued for Construction — the approved drawing or document status indicating the revision is authorised for use in construction activities.
MSDS / SDS	Material Safety Data Sheet / Safety Data Sheet — documentation per GHS/REACH describing chemical composition, hazard classification, first aid, storage, and disposal requirements.
PFG	Point-Fixed Glazing — a glazing system in which glass panels are mechanically fixed at discrete points through the glass using bolted patch fittings or spider fittings.
QC	Quality Control — the operational processes and inspection activities used to verify that installation works meet specified requirements and tolerances.
RACI	Responsible, Accountable, Consulted, Informed — a responsibility assignment matrix used to define roles for each task or decision.
Spandrel Panel	An opaque panel (glass, aluminium composite, or other material) installed in the zone between floors in a curtain wall system to conceal structural elements.
Weather Seal	A silicone or EPDM-based sealant or gasket applied at panel joints to prevent water ingress and air infiltration.
Bite	The dimension by which a glass or infill panel overlaps the curtain wall frame member, critical to structural and weather-tightness performance.
Fire Stop	A passive fire protection material or system installed at the interface between the curtain wall and the structural floor slab to prevent vertical fire and smoke spread.

Applicable Standards, Legislation & Regulatory References

International Standards (Global Version)

• ▶ISO 45001:2018 — Occupational Health and Safety Management Systems (Clauses 6.1.2 Hazard identification; 8.1.1 Operational planning; 8.1.3 Management of change)
• ▶ISO 9001:2015 — Quality Management Systems (Clauses 8.1 Operational planning; 8.5 Production and service provision; 8.6 Release of products)
• ▶ISO 14001:2015 — Environmental Management Systems (Clauses 8.1 Operational control; 6.1.2 Environmental aspects)
• ▶EN 13830:2003+A1:2020 — Curtain Walling — Product Standard (thermal transmittance, air permeability, watertightness, resistance to wind loads)
• ▶EN 12150-2:2004 — Glass in building — Thermally toughened soda lime silicate safety glass
• ▶EN 14449:2005 — Glass in building — Laminated glass and laminated safety glass
• ▶ETAG 002 (EAD 090062) — Structural Sealant Glazing Systems — European Assessment Document
• ▶EN ISO 11600:2003+A1:2011 — Building construction — Sealants — Classification and requirements for sealants
• ▶ISO 12567-1:2010 — Thermal performance of doors and windows — Determination of thermal transmittance

National / Regional Regulations

• ▶UK: Work at Height Regulations 2005 (SI 2005/735); CDM Regulations 2015; BS 8213-4:2016 (glazed doors & windows); BS 8210:2020 (facade maintenance)
• ▶USA: OSHA 29 CFR 1926 Subpart R (Steel Erection); ASTM E283 (air infiltration); ASTM E330 (structural performance); ASTM E331 (water penetration)
• ▶UAE: UAE Fire & Life Safety Code of Practice (FARA); Dubai Green Building Regulations; Abu Dhabi International Building Code (ADIBC)
• ▶EU: EU Construction Products Regulation (CPR 305/2011); Machinery Directive 2006/42/EC (lifting equipment)
• ▶Australia: AS/NZS 1288:2021 (glass in buildings — selection and installation); WHS Act 2011

Industry Codes of Practice

• ▶CWCT (Centre for Window and Cladding Technology) — Standard for Systemised Building Envelopes (2006, updated 2019)
• ▶AAMA 501.2 — Quality Assurance and Diagnostic Water Leakage Field Check of Installed Storefronts, Curtain Walls, and Sloped Glazing Systems
• ▶AAMA 503 — Voluntary Specification for Field Testing of Newly Installed Storefronts, Curtain Walls, and Sloped Glazing
• ▶Glass and Glazing Federation (GGF) Datasheet 8.2 — Structural Silicone Glazing

Roles and Responsibilities

Role	Key Responsibilities	RACI
Project Manager	Overall responsibility for project delivery, resource approval, change management, and statutory compliance. Final signatory on method statement approval.	A
Site Engineer (Facade)	Technical oversight of curtain wall installation sequence, survey control, tolerance checks, IFC drawing management, RFI management, and daily site supervision.	R
HSE Manager	Development and approval of risk assessments, PTW system management, safety induction delivery, WAH equipment inspection, and incident investigation.	R A
QA/QC Inspector	Implementation of Inspection & Test Plans (ITPs), hold point witness inspections, sealant cure monitoring, water-tightness test witnessing, and NCR issuance.	R
Facade / Glazing Foreman	Direct supervision of glaziers, MEWP operators, and riggers; daily toolbox talks; verification that crew holds required competency cards; enforcement of PPE compliance.	R
Glaziers (Operatives)	Physical installation of mullions, transoms, glazing panels, gaskets, and sealants per IFC drawings and this method statement. Responsible for immediate stop-work on identified unsafe conditions.	R
Crane / MEWP Operator	Operation of lifting equipment in accordance with lift plans, LOLER/LEEA/applicable requirements, and daily pre-use inspection of equipment.	R
Client / Engineer's Representative	Witnessing hold points, reviewing and approving ITP submissions, issuing instructions, approving design changes, and accepting completed works.	C I
Environmental Officer	Monitoring waste management (glass offcuts, silicone cartridges), chemical storage compliance (SDS), and spill response for solvents/sealants.	R

Pre-Task Requirements and Approvals

The following pre-task requirements must be satisfied and formally documented before any curtain wall or glazing installation activities commence:

1. 1Method Statement Approval: This method statement must be reviewed and signed by the HSE Manager, Site Engineer, QA/QC Manager, and Project Manager. The approved copy must be distributed to all relevant supervisors and filed in the project QHSE management system.
2. 2Risk Assessment Sign-off: The site-specific risk assessment must be reviewed and signed by all operatives before works commence. Evidence of briefing (toolbox talk register) must be retained.
3. 3Permit to Work (PTW): A PTW must be issued for all working-at-height activities above 2m, all crane lifts, and any confined space entry associated with glazing works. PTW numbers must be recorded on the daily diary.
4. 4Drawing Review: Only IFC-stamped drawings (Revision 02 or as current) must be used on site. All superseded drawing revisions must be removed from the work face and quarantined.
5. 5Inspection & Test Plan (ITP) Submission: The Contractor's ITP for curtain wall installation must be submitted to and approved by the Client/Engineer not less than 14 calendar days prior to commencement of works.
6. 6Material Approvals: Material submittals for all curtain wall profiles, IGUs, structural silicone sealants, setting blocks, gaskets, and fire-stop materials must receive formal Written Approval from the Engineer before delivery to site.
7. 7Structural Readiness: The structural frame, slabs, and primary fixings must be inspected and accepted (survey check ±5mm tolerance unless otherwise specified) before facade installation commences at each floor zone.
8. 8Sample Panel Approval: A prototype/mock-up panel must be constructed, tested (air, water, structural), and approved by the Engineer before full-scale installation proceeds, per CWCT Section 1.4 and project specification.
9. 9Competency Verification: All operatives must present valid competency cards (e.g., IPAF for MEWP; CPCS for crane; NVQ/equivalent for glaziers) to the Foreman before mobilisation.
10. 10Emergency Plan: The site emergency plan, including rescue-from-height protocol, must be in place and all operatives briefed before WAH activities commence.

⚠ STOP WORK AUTHORITY: Any operative who identifies an unsafe condition, inadequate control measure, or non-conformity from this method statement has the authority and obligation to stop work immediately and report to the Foreman or HSE Manager. No operative may be disciplined for exercising legitimate stop-work authority.

Resources, Equipment & Materials

Plant and Equipment

• ▶Tower crane or mobile crane (capacity rated per lift plan, LOLER/LEEA certified, third-party inspected)
• ▶Scissor lifts / boom lifts (MEWP, IPAF-rated, daily pre-use inspections per PSSR 2000 or equivalent)
• ▶Spider lift / vacuum-cup glazing lifter (rated to minimum 1.5× glass panel weight with manufacturer certificate)
• ▶Sealant application guns (pneumatic / battery-operated) and silicone tooling equipment
• ▶Silicone adhesion test kit and shore-hardness durometer
• ▶Water-tightness test apparatus per AAMA 501.2 / CWCT test methods
• ▶Levels, total station, digital inclinometer, plumb bob, and Hilti PROFIS anchor design tool
• ▶Aluminium frame cutting and drilling equipment with dust extraction

Personal Protective Equipment (PPE)

PPE Item	Standard / Specification	Mandatory For
Safety helmet	EN 397:2012+A1:2012 / ANSI/ISEA Z89.1-2014 Class E	All personnel on site
Safety footwear (steel-toe)	EN ISO 20345:2011 S3 SRC / ASTM F2413	All personnel on site
High-visibility vest/jacket	EN ISO 20471:2013+A1:2016 Class 2 minimum	All personnel on site
Safety glasses / goggles	EN ISO 16321-1:2021 / ANSI Z87.1-2020	All glazing / silicone operations
Cut-resistant gloves (glass handling)	EN ISO 21420:2020; EN 388:2016+A1:2018 (Level F cut resistance minimum)	All glass-handling operatives
Chemical-resistant gloves	EN 374-1:2016 Type B; nitrile minimum 0.2mm	Sealant application operatives
Full-body harness + lanyard (double)	EN 361:2002 (harness); EN 354:2010 (lanyard); EN 355:2002 (energy absorber)	All WAH activities where fall arrest required
Self-retracting lifeline (SRL)	EN 360:2002; ANSI/ASSP Z359.14-2021	MEWP occupants as supplementary arrest
Respiratory protection (half-face)	EN 140:1998 + P3 filter EN 143:2000 / NIOSH P100	Silicone primer application in confined / poorly ventilated areas
Hearing protection	EN 352-1:2002 (earmuffs) SNR ≥ 27 dB	Drilling and cutting operations
Face shield	EN 166:2002 Grade 3B	Angle grinding / cutting aluminium
Knee pads	EN 14404:2004+A1:2010 Type 2 Level 1	Ground-level sill and threshold glazing

Tools and Materials

• ▶Curtain wall aluminium profiles: Mullions, transoms, capping sections, pressure plates — all to approved material submittal (6063 T6 alloy or as specified)
• ▶Insulating Glass Units (IGUs): Double or triple-glazed, tempered/laminated as specified; stored vertically on padded A-frame racks, protected from site contamination
• ▶Structural silicone: Approved two-part or one-part product (e.g., Dow Corning 993 or equivalent); stored per SDS, not below 5°C or above 32°C
• ▶Weather-seal silicone: Approved colour-matched product, tested for movement capability per ISO 8339
• ▶Setting blocks and side blocks: EPDM or neoprene, Shore A 80±5 hardness, sized per glass bite and load calculation
• ▶EPDM gaskets: Approved profile; UV-resistant; compatible with silicone per manufacturer adhesion test records
• ▶Anchor bolts / cast-in channels: Stainless steel (Grade 316) or hot-dip galvanised (HDG) as specified; Hilti HIT or equivalent injection anchors as designed
• ▶Fire-stop mineral wool / intumescent sealant: Approved system with third-party EI rating; installed per manufacturer's installation manual
• ▶Backing rod (closed-cell polyethylene): Sized to achieve correct sealant width:depth ratio (minimum 2:1 width to depth)
• ▶Cleaning solvents and primers: Per silicone manufacturer SDS; stored in clearly labelled chemical containers in a designated COSHH store with secondary containment

Step-by-Step Procedure

01

Phase 1 — Preparation & Pre-Work Checks

1.1 Site Survey and Dimensional Verification

1. 1Using a calibrated total station, establish primary datum points and floor-to-floor dimensions across all elevations to be clad. Record all readings on the survey control proforma.
2. 2Verify structural slab edge positions and underside of slab levels against the facade engineer's setting-out information. Report any deviations exceeding ±8mm or as specified to the Project Engineer for resolution before installation commences.
3. 3Mark anchor locations on the slab edge and structural steelwork using a chalk line and template gauge. Double-check mark-up positions against IFC anchor drawings prior to drilling.

1.2 Material Receiving Inspection

1. 1Inspect all delivered curtain wall profiles and glazing units against the approved material submittal. Check batch numbers, CE/product marking, dimensional tolerances, and surface finish. Reject and quarantine any non-conforming items.
2. 2Verify each IGU delivery note against the shop drawing unit schedule. Each unit must be labelled with its drawing reference and installation location mark.
3. 3Inspect all structural silicone and weather-seal sealant for batch expiry dates, storage condition compliance, and material approval status. Do not use sealant within 6 months of expiry date.
4. 4Store glass units vertically on padded A-frame racks at 5–10° from vertical in a clean, shaded, dry area. Store aluminium profiles off-ground on timber bearers, protected from mortar splash and concrete.

1.3 Toolbox Talk and Briefing

1. 1Conduct a pre-task toolbox talk with all operatives and the foreman. Cover: scope of today's work, key hazards identified in the risk assessment, control measures in place, PTW number, emergency assembly point, and stop-work authority.
2. 2Verify all operatives hold and present valid competency cards (IPAF, CPCS, NVQ/equivalent) and have completed site induction. Record names on the toolbox talk register.
3. 3Inspect all PPE before issue. Reject and remove from service any harness with damaged webbing, bent buckles, or expired inspection date. Reject any helmet with cracks, deformation, or over 2 years old from manufacture.

1.4 Exclusion Zone and Access Setup

1. 1Establish a demarcated exclusion zone of minimum 6m radius below all overhead glazing and lifting zones. Erect physical barriers (Heras fencing or equivalent) with warning signage. Post a banksman at each access point.
2. 2Inspect MEWPs with a full pre-use checklist. Verify maximum platform heights, safe working loads, and daily service record before use.
3. 3Identify and test all fall arrest anchor points for MEWP occupant harness attachment. Each anchor must be rated ≥12 kN per EN 795:2012.

02

Phase 2A — Anchor Installation and Bracket Setting

1. 1Drill anchor holes at marked positions using a rotary hammer drill with dust extraction. Maintain correct bit size, depth, and spacing as per anchor design. Clean holes with compressed air and brush per anchor installation instruction.
2. 2Install cast-in channels, anchor bolts, or injection anchors as designed. Apply torque-setting per manufacturer specification and mark each anchor bolt with a torque verification marker pen once correct torque is confirmed with a calibrated torque wrench.
3. 3Install primary facade brackets (usually 3-axis adjustable) at each anchor location. Brackets must allow ±20mm adjustment in X, Y, and Z axes unless otherwise specified. Initial setting should place brackets at the mid-point of the adjustment range.
4. 4Using a level, plumb line, and laser, set brackets to the design datum line for each floor zone. Record final bracket positions on the survey record sheet. Allow the QC Inspector to witness and sign off the hold point before proceeding to frame installation.

03

Phase 2B — Mullion and Transom Erection (Stick System)

1. 1Hoist mullion sections to the working level using the crane with an approved spreader bar and certified slings. The lift plan for each mullion lift must be prepared and signed by a LEEA/CPCS qualified rigger.
2. 2Insert mullion into the bracket socket and fix with stainless steel bolts, initially hand-tight only to allow plumb adjustment. Do not fully torque until alignment is confirmed.
3. 3Plumb each mullion using a digital inclinometer (tolerance: ±1.5mm per 3m or as project specification requires). Check for bow and twist. Shim as required using approved stainless shims.
4. 4Once alignment is confirmed, torque all fasteners to specified values. Record torque values on the inspection record. Place a torque-verification paint mark on each fastener head.
5. 5Insert thermal break inserts and stack joint sleeves (where applicable) at floor line connections. Ensure slip joint/movement provision is maintained at each floor level (typically 20mm gap to allow differential structural movement).
6. 6Install transoms at specified centres between erected mullions. Transoms must be installed at levels shown on IFC drawings; check with spirit level to ±1mm in 1,200mm. Secure with approved self-tapping screws or bolts per system specification.
7. 7Identify and seal any gap at the transom-to-mullion junction with approved polyurethane backing backer and silicone per system detail, unless covered by pressure plate (which creates the weather seal in pressure-equalised systems).

04

Phase 2C — Glazing Panel and Infill Installation

1. 1Clean all glass contact surfaces (frame rebates) with approved solvent per the silicone manufacturer's specification. Wear chemical-resistant gloves (EN 374 Type B) and eye protection during cleaning. Ensure adequate ventilation.
2. 2Apply structural silicone primer to all aluminium and glass surfaces in the bond area where specified by the silicone manufacturer. Allow primer to dry to the tack-free stage before applying silicone (typically 15–30 minutes at 23°C/50% RH).
3. 3Position EPDM setting blocks at the designated quarter points of the glass unit's bottom edge. Setting blocks must be of correct Shore hardness (80±5 Shore A) and length (minimum 100mm or as calculated). Position side blocks at the mid-height of each vertical edge.
4. 4Lift glass unit into position using a vacuum-cup glazing lifter rated to at least 1.5× the unit weight. A minimum of two trained operatives must operate the glazing lifter; an additional operative must guide the unit into the opening from MEWP.
5. 5Verify the glass bite (overlap on frame) meets the specified minimum (typically 12mm for standard applications). Check that the face clearance and edge clearance meet tolerances: minimum 6mm edge clearance each side, minimum 8mm face clearance top and bottom, unless otherwise specified.
6. 6For stick systems: insert pressure plate and seal with EPDM cover cap/gasket. Torque pressure plate fasteners to the specified value using a calibrated torque wrench. Mark fasteners with paint marker upon verification.
7. 7For structural silicone glazing (SSG) systems: apply two-part structural silicone to the bond area. Mix ratio must be verified by extrusion butterfly test (snap test) at the start of each shift and every 2 hours during application. Mix ratio and cure test records must be maintained on the QC register.
8. 8Apply weather-seal silicone at all exposed joints using a backing rod of correct diameter (larger than the joint width by 25%). Tool the joint with a rounded spatula to achieve a clean concave profile. Remove masking tape immediately after tooling while silicone is wet. Allow minimum 24-hour curing time before exposing to water.
9. 9Install spandrel panels (opaque infill) with backing insulation and vapour barrier in the spandrel zone per the specification. Ensure continuous compression at all perimeter interfaces.

05

Phase 2D — Unitised Panel Installation

1. 1Plan panel installation sequence with the crane operator. Panels must be installed in a defined bottom-up sequence (or as specified by the facade engineer) to allow interlocking stack joints to engage correctly.
2. 2Attach the manufacturer's approved lifting beam or spreader to the panel's factory-installed lifting inserts. Verify the rigging weight calculation does not exceed 80% of the crane's rated capacity at the working radius.
3. 3Hoist the panel to the floor zone and guide it onto the previously set bracket with MEWP-positioned operatives. A banksman on the ground must maintain radio contact with the crane operator at all times during the lift.
4. 4Engage the panel's male-female stack joint into the panel below. Ensure the interlocking EPDM gaskets mate and compress correctly along the full joint length. Dry fit must show ≤0.5mm gap along any 300mm length.
5. 5Anchor the panel to the primary bracket and adjust X, Y, Z position per survey datum. Confirm alignment before removing crane slings. Sign off each panel installation on the panel tracking register.

06

Phase 3 — Completion, Inspection & Handover

3.1 Fire-Stopping Installation

1. 1At each floor slab/curtain wall interface, install fire-stop mineral wool safing insulation (compressed 25% to achieve correct density ≥112 kg/m³) to fill the perimeter gap between slab edge and frame back.
2. 2Apply intumescent fire-stop sealant at the top of the safing insulation to create a continuous seal. Record fire-stop material batch number and installed location on the fire-stop installation schedule. QC Inspector must witness and sign off this hold point.

3.2 Water-Tightness Testing

1. 1Conduct field water-tightness testing on a minimum of 5% of completed curtain wall bays or as defined in the ITP. Testing must comply with AAMA 501.2 (spray rack test at 3.4 L/min/m² for minimum 15 minutes) or CWCT Test Method 6.
2. 2Inspect all internal surfaces for water ingress during and after each test. Any penetration at joints, fixings, or frame-glass interface is a fail. Issue an NCR, identify root cause, repair, and retest to pass.

3.3 Final Visual Inspection and Snagging

1. 1Conduct systematic bay-by-bay visual inspection of all installed curtain wall panels. Check for: silicone joint continuity and profile, glass clarity and freedom from scratches/chips, frame surface damage, alignment of joints, colour consistency of anodised or painted profiles, and completeness of all drainage provisions.
2. 2Complete the final inspection checklist for each elevation. All snagging items must be closed out before handover. Issue the Works Completion Certificate upon satisfactory close-out of all NCRs and snagging items.

Risk Assessment Summary

Risk Rating Matrix (5×5)

Risk Rating = Likelihood (1–5) × Severity (1–5). Banding: 1–4 Low (Green); 5–9 Medium (Amber); 10–16 High (Red); 17–25 Critical (Dark Red).

Hazard Identification Table

#	Hazard	Activity	Persons at Risk	L	S	Initial RR	Key Control Measures	Residual RR
1	Fall from height — operative falls from MEWP or unprotected edge	All WAH phases	Glaziers, MEWP operators	3	5	15 HIGH	Full-body harness EN 361 + double lanyard EN 354 attached to rated anchor. MEWP daily inspection. PTW issued. Edge protection where practicable. Rescue-from-height plan.	6 MED
2	Falling objects — glass panel, tool, or fitting dropped from height	Glazing installation, panel hoisting	Ground-level workers, public	3	5	15 HIGH	Exclusion zone min. 6m. Physical barrier + signage. Tool lanyards mandatory for all hand tools above 2m. Toeboards on elevated platforms. Banksman at exclusion zone entrance.	6 MED
3	Crane/MEWP mechanical failure — collapse of panel during lift	Panel hoisting	All site workers in vicinity	2	5	10 HIGH	Pre-lift plan signed by CPCS rigger. SWL not to exceed 80% rated capacity. Third-party crane inspection certificate. Certified slings, hooks, and spreader bar. No personnel under suspended load.	4 LOW
4	Glass handling cuts — laceration from IGU edges or breakage	Unloading, positioning glazing	Glaziers, delivery drivers	4	3	12 HIGH	Cut-resistant gloves EN 388:2016+A1:2018 Level F minimum. Vacuum-cup lifter for all panels >30kg. IGUs stored vertically on A-frames. No manual carrying of units >25kg without mechanical assist.	4 LOW
5	Chemical exposure — skin/eye irritation from silicone primer and solvent	Surface cleaning and silicone application	Glaziers applying sealant	3	3	9 MED	COSHH/SDS assessment completed. Chemical-resistant gloves EN 374 Type B. Ventilation ensured (min. 10 ACH or open air). Eye protection EN ISO 16321-1. Eyewash station within 10m.	3 LOW
6	Manual handling injury — musculoskeletal disorder from lifting profiles	Aluminium profile handling	Glaziers, labourers	3	3	9 MED	Manual handling risk assessment per MAC Tool. Team lifts for loads >25kg. Mechanical handling aids (trolleys) provided. Manual handling training per ISO 11228-1.	3 LOW
7	Wind loading — work interrupted or facade damaged by high winds	All external WAH phases	All site personnel	3	4	12 HIGH	Monitor wind speed via site anemometer. Suspend MEWP operations if wind exceeds 12.5 m/s (45 km/h or Beaufort Scale 6). Crane operations suspended above 10 m/s unless crane-specific rating is higher. Daily weather check at 07:00.	6 MED
8	Noise-induced hearing loss from drilling and cutting	Frame cutting, anchor drilling	Glaziers, adjacent workers	3	2	6 MED	Hearing protection EN 352-1:2002 SNR≥27dB. Acoustic enclosures where practicable. Restrict noisy operations 07:00–18:00. Noise assessments per ISO 9612.	2 LOW
9	Fire — ignition of solvent-based primers or cleaning agents	Silicone application	All site workers	2	4	8 MED	Solvent stored in ATEX-compliant containers. No ignition sources within 5m. CO2 fire extinguisher within 15m. SDS COSHH assessment completed. Hot works PTW if any hot works in vicinity.	2 LOW
10	Structural failure — inadequate anchorage leading to panel detachment	Bracket and anchor installation	All building occupants and public	1	5	5 MED	Anchor design by PE/facade engineer. Pull-out tests (minimum 10% random sampling per ETAG 001 / EN 1992-4). ITP hold point before glazing commences. Only IFC drawings used.	2 LOW

Control Measures Hierarchy

• ▶Elimination: Prefabrication of unitised panels off-site to minimise working-at-height duration and glass breakage risk at elevation.
• ▶Substitution: Use of water-based primers where technically equivalent to solvent-based products; use of pre-cut profiles to reduce on-site cutting noise and dust.
• ▶Engineering Controls: MEWP and vacuum-cup glazing lifters; mechanical handling trolleys; acoustic enclosures for drilling; dust extraction on cutting equipment; edge protection rails at slab perimeters.
• ▶Administrative Controls: PTW system; toolbox talks; MEWP pre-use checklists; wind speed monitoring; exclusion zones; ITP hold points; competency verification; schedule noisy operations within permitted hours.
• ▶PPE: As specified in the PPE table above; last line of defence only; all PPE to cited EN/ANSI standards; inspected and replaced per manufacturer schedule.

Quality Control & Inspection Points

Hold Points

The following activities constitute Hold Points (HP) — work must not proceed beyond this stage without formal written sign-off from the designated authority:

HP#	Activity	Authority to Release	Record
HP-01	Mock-up / prototype panel test — air, water, structural performance	Client / Engineer of Record	Signed test report
HP-02	Anchor and bracket setting-out — survey check before frame installation	QC Inspector + Site Engineer	Survey record sheet
HP-03	Frame alignment (mullion plumb and transom level) — before glazing	QC Inspector	Frame inspection record
HP-04	Structural silicone adhesion and mix ratio test at start of each shift	QC Inspector	Butterfly test log
HP-05	Fire-stop installation — before any internal dry-lining or concealment	QC Inspector + Client Rep.	Fire-stop installation schedule
HP-06	Water-tightness field test — final bay acceptance	Client / Engineer's Rep.	AAMA 501.2 test report

Witness Points

Witness Points (WP) require prior notification to the authority, who may choose to attend. Work may proceed if the authority does not attend within the agreed notice period (typically 24 hours):

• ▶WP-01: Material receiving inspection for glazing units and profiles.
• ▶WP-02: First-off installation of setting blocks and glazing.
• ▶WP-03: Sealant application (weather-seal joints) — first-off inspection.
• ▶WP-04: Anchor torque verification.
• ▶WP-05: Unitised panel lift — first panel per floor.

Quality Records

• ▶Material receiving inspection reports and delivery notes
• ▶Survey control records (bracket and frame alignment)
• ▶Torque verification logs (anchor bolts and pressure plates)
• ▶Structural silicone butterfly test and cure logs (per shift)
• ▶Fire-stop installation schedule (location, product, batch, date, inspector)
• ▶Water-tightness test reports (AAMA 501.2 / CWCT)
• ▶Non-Conformance Reports (NCRs) and close-out records
• ▶Final visual inspection checklists (bay-by-bay)
• ▶Works Completion / Handover Certificate

Environmental Controls and Sustainability

Curtain wall and glazing works generate several categories of environmental impact that must be proactively managed in accordance with ISO 14001:2015 Clause 6.1.2 and the project's Environmental Management Plan (EMP):

• ▶Glass waste: Broken or off-cut glass must be collected in clearly labelled glass skips lined with puncture-resistant materials. Glass is classified as inert waste and may be disposed of at licensed inert waste facilities or recycled through an approved glass recycler. Never mix glass with general waste or construction debris.
• ▶Aluminium swarf and offcuts: Segregate in labelled metal skips for recycling. Aluminium has very high recycled content value (90–95% of primary energy saved in recycling); maximise diversion from landfill.
• ▶Chemical waste (solvents, sealant cartridges): Empty cartridges and solvent containers must be disposed of as hazardous chemical waste per local regulations. SDS Sections 13 must be followed. Secondary containment must be provided in chemical storage areas. Spill kit (absorbent granules, disposal bags) must be maintained in the chemical store.
• ▶Dust and noise: Drilling and cutting operations must use dust extraction (LEV system or vacuum attachment) and acoustic enclosures. Works restricted to permitted hours defined in the EMP.
• ▶Energy performance: The curtain wall system must achieve the specified thermal transmittance (U-value) and air permeability values. The Project's Building Regulations or LEED/BREEAM targets must be traceable to the installed system's performance certificate (EN 13830 testing). Maintain records of U-value certifications for handover O&M manual.
• ▶REACH and VOC compliance: Sealants and primers must comply with relevant VOC emission limits and REACH regulations (EC 1907/2006). Product EPDs (Environmental Product Declarations) must be submitted for LEED/BREEAM credit purposes where required.

Emergency Procedures and Response

Emergency Contacts

Role	Name	Contact Number	Availability
Site HSE Manager	[Insert Name]	[Insert Number]	24/7 during construction
Site First Aider	[Insert Name — EFAW/FAW certified]	[Insert Number]	On site during all working hours
Project Manager	[Insert Name]	[Insert Number]	Working hours + emergency
Local Emergency Services (Ambulance)	N/A	999 / 112 / local equivalent	24/7
Local Fire Services	N/A	999 / 112 / local equivalent	24/7
Poison Control Centre	N/A	[Insert local number]	24/7
Crane Manufacturer Emergency Line	[Insert Manufacturer]	[Insert Number]	24/7

Incident Reporting Procedure

⚠ ALL INCIDENTS MUST BE REPORTED IMMEDIATELY — including near-misses, dangerous occurrences, and property damage — to the Site HSE Manager. No incident is too minor to report.

Rescue from Height (MEWP Entrapment or Fall Arrest)

1. 1T+0 min: Operative activates MEWP emergency stop or ground controller lowers platform. A trained ground operator must know how to use the MEWP ground override before work commences.
2. 2T+0–2 min: Foreman identifies rescue situation and calls emergency services (999/112 or site emergency number). Clear site access route for emergency vehicles.
3. 3T+2–5 min: Trained rescue team (IRATA-qualified or rescue-from-height trained) deploys per the site rescue plan. Do not attempt rescue without training.
4. 4T+5–10 min: First Aider administers first aid upon operative reaching ground. Treat for suspension trauma (positional asphyxia) — lay casualty flat, do not allow to stand for minimum 30 minutes.
5. 5T+immediately: HSE Manager notified. Incident scene preserved for investigation. Area isolated. Regulatory notification prepared (RIDDOR / equivalent) if reportable threshold met.

Glass Panel Dropped / Impact Injury

1. 1Immediately raise the alarm and clear the area. Account for all personnel in the vicinity.
2. 2Call emergency services if injury has occurred. Provide first aid — manage bleeding from lacerations with clean dressings and direct pressure; do not remove embedded glass fragments.
3. 3Isolate glass debris area and ensure no glass handling until all personnel are wearing full PPE (cut gloves Level F, eye protection, safety boots).
4. 4Stop all overhead work. Investigate how glass was dropped/broke before resuming.

Chemical Exposure (Silicone Primer / Solvent)

1. 1Eyes: Immediately flush with clean water for minimum 15 minutes. Seek medical attention. Do not rub eyes.
2. 2Skin: Remove contaminated clothing. Wash affected area with soap and water for minimum 10 minutes.
3. 3Inhalation: Move casualty to fresh air. If unconscious, place in recovery position. Call emergency services. Do not leave unattended.
4. 4Refer to SDS Section 4 for product-specific first aid. Provide SDS to attending medical personnel.

Communication and Coordination

• ▶Daily pre-task briefing: Conducted by Foreman at 07:00 each working day covering daily work scope, known hazards, PTW status, and weather forecast.
• ▶Weekly coordination meeting: Site Engineer, Foreman, QC Inspector, and HSE Manager review progress, upcoming critical lifts, ITP hold points, and outstanding NCRs.
• ▶Crane schedule coordination: All crane lifts must be planned 24 hours in advance with the crane operator and site logistics manager to prevent conflicts with other trades.
• ▶Interoperability with other trades: Coordinate with structural, MEP, fire protection, and internal fit-out trades to ensure no access conflicts during glazing window operations. Raise site-wide activity notice for any external lifting operations.
• ▶Radio communication: All MEWP operators, crane operators, and banksmen must carry two-way radios on dedicated site channel. Radio communication check must be conducted at start of every lift.
• ▶Subcontractor interface: Where facade specialist subcontractor differs from main contractor, a clear Interface Agreement must be signed defining scope boundaries, temporary works responsibilities, and access provisions.

Record Keeping and Documentation

All records generated during curtain wall and glazing installation must be maintained in a structured project QHSE file (physical and/or digital) accessible to all parties and preserved for the retention period specified in the contract (typically minimum 10 years or building design life as relevant). Key records include:

• ▶This approved Method Statement (signed) and revision log
• ▶Risk Assessment (signed by all operatives pre-task)
• ▶Toolbox Talk registers (signed by all attendees, dated)
• ▶Approved ITP and all associated inspection records
• ▶Material submittals and written approval records
• ▶Survey control records and as-installed drawing mark-ups
• ▶Crane certificates, LOLER inspection records, MEWP service records
• ▶PTW log (issued, closed, archived)
• ▶All test reports (water-tightness, anchor pull-out, silicone cure)
• ▶NCRs and corrective action records
• ▶Incident and near-miss reports
• ▶Waste management records (consignment notes for hazardous waste)
• ▶O&M Manual contributions (material certificates, U-value data, sealant warranties)

Training and Competency Requirements

Role	Minimum Qualification / Training	Renewal Period
All site personnel	Site induction; manual handling awareness; COSHH awareness (chemical exposure)	Each new project site
All WAH operatives	Working at Height awareness (WAH Regs 2005); fall arrest equipment inspection	Annual refresher
Glaziers	NVQ Level 2/3 Fenestration Installation or equivalent trade qualification; glazing system manufacturer training	5-year CPD update
MEWP Operators	IPAF PAL Card (relevant category: 3a, 3b as applicable); MEWP pre-use inspection	5 years (IPAF)
Crane Operators	CPCS Appointed Person (A61) or equivalent national certification; lift plan preparation	5 years (CPCS)
Riggers / Slingers	CPCS Slinger/Signaller (A40) or equivalent; rigging equipment inspection	5 years (CPCS)
First Aiders	HSE-approved FAW (3-day) or EFAW (1-day); one per 50 workers	3 years
HSE Manager	NEBOSH National Construction Certificate or NEBOSH Diploma minimum; IOSH membership	CPD annual
QA/QC Inspector	Relevant facade/glazing quality inspection training; ISO 9001:2015 awareness	Biennial update
Rescue-from-Height Team	Working-at-height rescue training (IRATA Level 1 or equivalent confined-space/height rescue)	Annual

References

• ▶ISO 45001:2018 — Occupational Health and Safety Management Systems — Requirements with Guidance for Use
• ▶ISO 9001:2015 — Quality Management Systems — Requirements
• ▶ISO 14001:2015 — Environmental Management Systems — Requirements with Guidance for Use
• ▶EN 13830:2003+A1:2020 — Curtain Walling — Product Standard
• ▶EN 12150-2:2004 — Glass in Building — Thermally Toughened Soda Lime Silicate Safety Glass
• ▶EN 14449:2005 — Glass in Building — Laminated Glass and Laminated Safety Glass
• ▶ETAG 002 / EAD 090062 — Structural Sealant Glazing Systems
• ▶EN ISO 11600:2003+A1:2011 — Building Construction — Sealants — Classification and Requirements
• ▶EN 388:2016+A1:2018 — Protective Gloves Against Mechanical Risks
• ▶EN 361:2002 — Personal Protective Equipment Against Falls from a Height — Full Body Harnesses
• ▶EN 354:2010 — Personal Protective Equipment Against Falls from a Height — Lanyards
• ▶EN 355:2002 — Personal Protective Equipment Against Falls from a Height — Energy Absorbers
• ▶EN 360:2002 — Personal Protective Equipment Against Falls from a Height — Self-Retracting Lifelines
• ▶EN 397:2012+A1:2012 — Industrial Safety Helmets
• ▶EN ISO 20345:2011 — Personal Protective Equipment — Safety Footwear
• ▶EN ISO 20471:2013+A1:2016 — High Visibility Clothing
• ▶EN 795:2012 — Fall Protection — Anchor Devices — Requirements and Testing
• ▶CWCT — Standard for Systemised Building Envelopes, Centre for Window and Cladding Technology, 2019
• ▶AAMA 501.2 — Quality Assurance and Diagnostic Water Leakage Field Check of Installed Curtain Walls
• ▶AAMA 503 — Voluntary Specification for Field Testing of Newly Installed Curtain Walls
• ▶Work at Height Regulations 2005 (SI 2005/735) — UK
• ▶OSHA 29 CFR 1926 Subpart R — Steel Erection

🔗 Related Resources on RAMSProZone

• ▶Method Statement for Working at Height — Complete QHSE Template
• ▶Risk Assessment for Glass Handling and Manual Glazing Operations
• ▶Permit to Work System — How to Write a QHSE-Compliant PTW
• ▶Method Statement for MEWP Operations and Working at Height
• ▶Facade Inspection and Test Plan (ITP) Template — Free Download

Conclusion and Summary

This Method Statement for Installation of Curtain Wall & Glazing provides a comprehensive, technically precise operational framework for the safe, quality-compliant, and environmentally responsible execution of curtain wall and glazing works in the civil and building construction sector. The document integrates the full spectrum of QHSE management requirements — from pre-task approvals and material verification through to final water-tightness testing and handover documentation — in a single, hierarchically structured reference that meets the expectations of ISO 45001:2018, ISO 9001:2015, and EN 13830 compliance frameworks.

The fundamental principles governing every phase of curtain wall installation are precision, safety, and accountability. Precision in survey setting-out, bracket installation, and frame alignment is the foundation of weather-tightness and structural performance. Safety — particularly in the management of working-at-height, crane and MEWP operations, and glass handling hazards — must be treated as non-negotiable through the rigorous implementation of the control hierarchy detailed in the risk assessment. Accountability is assured through the RACI matrix, ITP hold points, and the complete documentation chain from approved method statement to signed works completion certificate.

Project teams implementing this method statement for curtain wall and glazing installation are reminded that this document is a starting framework that must be tailored to the specific project's structural system, building height, curtain wall manufacturer's installation guidance, local statutory requirements, and site-specific conditions. The competency of all personnel, from glaziers and MEWP operators to QC inspectors and HSE managers, is ultimately the most critical determinant of a successful curtain wall installation programme — technically sound and delivered without injury or quality failure.

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Frequently Asked Questions (FAQ)

Q: What is the purpose of a Method Statement for curtain wall installation?

A: A Method Statement for curtain wall installation is a formal QHSE document that defines the step-by-step procedure, health and safety controls, quality inspection requirements, roles and responsibilities, and environmental management measures governing the safe and compliant erection of a curtain wall and glazing system. It provides a contractual and regulatory reference that protects both operatives and the project by demonstrating that all foreseeable risks have been identified, assessed, and controlled before work commences. It is typically submitted to the client or principal designer as part of the pre-construction approval process and forms the basis of toolbox talks and site supervision.

Q: What is the difference between a stick system and a unitised curtain wall?

A: A stick system (or site-assembled system) is one where the curtain wall is built piece-by-piece on-site — mullions are installed first, then transoms are fixed between them, and glazing panels are inserted and sealed after the frame is complete. This is labour-intensive, weather-dependent, and requires considerable working-at-height time. A unitised system uses factory-assembled panels (each a complete module of frame and infill) that are hoisted floor-by-floor and connected to primary brackets. Unitised systems offer faster installation, better factory quality control, less on-site skilled labour requirement, and reduced weather dependency during installation, but require a higher level of upfront design coordination and manufacturing precision. The choice between systems depends on building height, programme, budget, and available site access.

Q: What PPE is required for curtain wall glazing installation?

A: The minimum mandatory PPE for curtain wall and glazing installation includes: an industrial safety helmet (EN 397:2012+A1:2012), safety footwear (EN ISO 20345:2011 S3), high-visibility clothing (EN ISO 20471:2013 Class 2), cut-resistant gloves rated to EN 388:2016+A1:2018 at minimum Level F for all glass-handling tasks, and safety glasses (EN ISO 16321-1:2021) for all glazing and silicone operations. For all working-at-height activities where collective protection is insufficient, a full-body fall arrest harness (EN 361:2002) with double lanyards and energy absorbers (EN 355:2002) is mandatory. Chemical-resistant gloves (EN 374-1:2016 Type B nitrile) must be worn during sealant and primer application. Respiratory protection may be required in confined or poorly ventilated areas during solvent primer use.

Q: How is water-tightness of curtain wall installation tested on site?

A: Field water-tightness testing of installed curtain wall systems is conducted in accordance with AAMA 501.2 (Quality Assurance and Diagnostic Water Leakage Field Check) or CWCT Test Method 6. In the AAMA 501.2 method, a calibrated spray nozzle rack is positioned at a specified distance from the curtain wall face and delivers water at a minimum rate of 3.4 litres per minute per square metre for a continuous period of not less than 15 minutes. An inspector simultaneously examines interior surfaces for any water penetration at joints, fixings, sill details, and frame-glass interfaces. Any penetration constitutes a failure, triggering an NCR, root cause investigation, repair, and re-test until a pass is achieved. A minimum of 5% of completed bays (or a greater percentage as defined in the contract ITP) must be tested.

Q: What are Hold Points in a curtain wall installation ITP?

A: Hold Points (HPs) in an Inspection and Test Plan (ITP) for curtain wall installation are mandatory stopping points in the construction sequence at which work must not proceed until a designated quality authority has physically attended, inspected, and provided formal written sign-off. Unlike Witness Points (where work can proceed if the authority does not attend within the notice period), Hold Points are absolute — non-observance constitutes a contract breach and the work produced beyond an unsatisfied Hold Point may be required to be opened-up, reworked, or demolished at the contractor's cost. Key Hold Points for curtain wall installation include: mock-up panel test approval, bracket alignment check before frame installation, structural silicone adhesion test before glazing, fire-stop installation before concealment, and water-tightness test for bay acceptance.

Q: What is structural silicone glazing (SSG) and how is its quality controlled on site?

A: Structural Silicone Glazing (SSG) is a facade system in which glass panels are bonded to the curtain wall aluminium frame using a high-performance two-part silicone adhesive, eliminating the need for visible mechanical retention. The structural silicone provides both the adhesive bond and the weather seal in one application. Quality control of SSG on site is critical and includes: substrate cleaning with approved solvents followed by adhesion-promoting primer application; a butterfly (snap/extrusion) test at the start of every shift and at minimum every two hours during application to verify the two-component mix ratio is correct; shore-hardness measurement after 21-day cure; and systematic documentation of all batches, application dates, cure times, and test results. The work must comply with ETAG 002 / EAD 090062 and the specific silicone manufacturer's application manual, which typically specifies temperature (5–40°C) and humidity (15–75% RH) limits for application.

Q: What is fire-stopping in curtain wall installation and why is it critical?

A: Fire-stopping in curtain wall installation refers to the passive fire protection system installed at the linear gap between the rear face of the curtain wall and the structural floor slab edge at every floor level. Without fire-stopping, a fire originating in one floor compartment can rapidly spread vertically through the cavity between the facade system and the building structure, bypassing fire-rated floor slabs and enabling floor-to-floor fire propagation — a phenomenon called 'curtain wall bypass.' The fire-stop system typically consists of mineral wool safing insulation (compressed 25% to achieve ≥112 kg/m³ density) installed in the gap, topped with intumescent fire-stop sealant to form a continuous seal. The system must achieve the fire resistance period required by the building regulations (typically EI 30, EI 60, or EI 120) and must be installed per the manufacturer's tested system to a validated detail. QA/QC sign-off must occur before any concealment by internal fit-out works.

Q: What wind speed limits apply to MEWP operations during curtain wall installation?

A: The maximum safe wind speed for Mobile Elevating Work Platform (MEWP) operations varies by equipment type, platform height, and load — and the manufacturer's specific operating manual must always be consulted as the primary reference. As a general industry guideline based on EN 280:2013 and most major MEWP manufacturers, operations are typically restricted when wind speeds at platform height exceed 12.5 m/s (approximately 45 km/h or Beaufort Scale Force 6 — 'Strong Breeze'). For crane operations during panel lifts, a lower threshold of 10 m/s may apply unless the crane's rated wind speed is documented otherwise. Wind speed must be monitored via a calibrated anemometer positioned at the highest active work level, not at ground level where wind speeds are significantly lower. Wind monitoring must commence at the start of each working day and continue throughout WAH and lifting operations.

Q: What competencies must glaziers hold for curtain wall installation?

A: Glaziers engaged in curtain wall installation should hold as a minimum: a recognised trade qualification in fenestration installation such as NVQ Level 2 or Level 3 in Fenestration Installation (UK), or an equivalent national vocational qualification; specific training from the curtain wall system manufacturer covering the particular product being installed (most major curtain wall suppliers — Schüco, Reynaers, Kawneer, and others — provide certified installer training); working-at-height training with practical assessment; MEWP operator IPAF PAL card (for those operating MEWPs, categories 3a and/or 3b); manual handling training; and COSHH awareness for silicone and chemical product handling. For structural silicone glazing work specifically, some manufacturers require written certification of the applicator and/or site supervisor. All competency evidence must be verified and recorded by the Foreman before the operative commences work on site.

Q: Which international standard governs curtain wall systems as a product?

A: The primary international product standard governing curtain wall systems in Europe is EN 13830:2003+A1:2020 — Curtain Walling — Product Standard. This standard specifies requirements and test methods for thermal transmittance (U-value), air permeability, watertightness, resistance to wind load, resistance to seismic impact (in seismic zones), and impact resistance. Curtain wall systems placed on the European market must carry CE marking in accordance with the CPR (Construction Products Regulation 305/2011), with a Declaration of Performance (DoP) referencing EN 13830. In the USA and Canada, ASTM standards apply: ASTM E283 (air infiltration), ASTM E330 (structural performance under wind load), and ASTM E331 (water penetration). Project specifications should state which test methods and performance levels the installed system must achieve, and material submittals must provide the relevant test certificates from an accredited laboratory.

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RAMSProZone Editorial Team

RAMSProZone is a professional QHSE resource platform providing free, technically accurate Method Statements, Risk Assessments, ITPs, and QHSE templates for civil engineering, construction, and industrial sectors. All documents are authored by NEBOSH/ISO Lead Auditor-qualified professionals with 20+ years of industry experience. Visit us at ramsprozone.blogspot.com.

Doc Ref: RPZ-CIV-2026-001 | Rev. 02 | April 2026 | © 2026 RAMSProZone | UNCONTROLLED WHEN PRINTED