Steel Window Systems Disclosure
Product System Details
Product Name: RCD Steel Window Systems
Unique Product Identifiers: RCD-SW-STD (Standard Steel Window), RCD-SW-XR (X-Ray Rated Steel Window)
Intended Use: Non-fire rated steel-framed window systems for commercial, healthcare, education, and multi-residential buildings. Includes standard glazed windows and x-ray (radiation shielding) rated windows with lead glass.
Window Types:
- Standard Steel Frame Windows (fixed and operable)
- X-Ray Rated Steel Frame Windows (with lead glass vision panels)
Frame Material: Steel frame, powder coated finish
Glazing Options:
- Standard: Clear, tinted, or low-E glass
- X-Ray: Lead glass panels (1.0mm, 1.5mm, 2.0mm Pb equivalent)
Note: X-ray rated windows must be specified by a medical physics expert or other qualified expert (ORS C1 2024) who determines the required lead equivalence based on equipment, workload, room layout, and occupancy of adjacent areas. Restruct Commercial Doors does not determine the required shielding.
Manufacturer Details
| Field | Content |
|---|---|
| Legal Name | Restruct Commercial Doors Ltd |
| Trading Name | Restruct Commercial Doors |
| NZBN | 9429051277055 |
| Address | 18 Waimakariri Park Drive, Kainga, Christchurch, Canterbury, New Zealand, 8083 |
| Phone | +64 21 860 326 |
| admin@restructcommercialdoors.co.nz | |
| Website | restructcommercialdoors.co.nz |
Standards & Building Code Compliance
| Standard/Code | Description | Status |
|---|---|---|
| NZS 4211:2008 (Amendment 1, 2014) or SNZ TS 4211:2022 | Specification for performance of windows (NZS 4211:2008) or Specification for the classification of windows (SNZ TS 4211:2022); both accepted under Building Product Specifications 4.4.1.1. The rating basis is stated per product | Compliant |
| AS 2047:2014 (Amendments 1:2016 and 2:2017) | Windows and external glazed doors in buildings (Australian standard; accepted in New Zealand per Building Product Specifications 4.4.1.1(c)) | Compliant |
| NZS 4223 Parts 1 to 4 (NZS 4223.1:2008, NZS 4223.2:2016, NZS 4223.3:2016, NZS 4223.4:2008) | Glazing in buildings: glass selection, insulating glass units, human impact safety, and wind, dead and live loads, as cited by B1/AS1 Second Edition, F2/AS1 and Building Product Specifications 4.4.1.4. AS 1288:2021 (Glass in buildings: Selection and installation) is accepted only as an alternative for glass selection under 4.4.1.4(a)(ii) | Compliant |
| AS/NZS IEC 61331.1:2022 | Protective devices against diagnostic medical X-radiation, Part 1: Determination of attenuation properties of materials (lead glass attenuation for X-ray windows) | Compliant |
| NZBC Clause B1 | Structure (wind loads, impact resistance) | Compliant |
| NZBC Clause B2 | Durability | Compliant |
| NZBC Clause E2 | External moisture (external windows) | Compliant |
| NZBC Clause H1 | Energy efficiency (thermal performance) | Compliant |
| NZBC Clause F2 | Hazardous building materials | Compliant |
| Radiation Safety Act 2016 | NZ primary legislation for radiation protection (X-ray windows) | Compliant |
Important: Standard steel windows are not fire rated. Do not use where fire resistance is required. X-ray rated windows must be specified by a medical physics expert or other qualified expert (ORS C1 2024) for lead equivalence based on the specific installation requirements.
Product Specifications
Standard Steel Frame Windows (RCD-SW-STD)
| Specification | Details |
|---|---|
| Frame Material | Steel frame, powder coated finish |
| Window Types | Fixed and operable (awning, casement) |
| Glazing Options | Clear, tinted, or low-E glass |
| Glass Compliance | NZS 4223.1:2008 and NZS 4223.3:2016 (glass selection and human impact safety); AS 1288:2021 accepted as an alternative for selection under Building Product Specifications 4.4.1.4 |
| Applications | Offices, corridors, internal partitions, external facades |
| Sizes | As per project specification (consult manufacturer) |
| Finish | Powder coated to specified colour |
| Thermal Performance | As specified for NZBC H1 compliance (glazing and frame dependent) |
| Weather Performance | Wind, water, and air infiltration per NZS 4211:2008 (Amendment 1) or SNZ TS 4211:2022 for external applications |
| Warranty | As per project agreement (conditions apply) |
X-Ray Rated Steel Frame Windows (RCD-SW-XR)
| Specification | Details |
|---|---|
| Frame Material | Steel frame with lead lining, powder coated finish |
| Window Type | Fixed (non-operable) |
| Lead Glass Options | 1.0 mm Pb, 1.5 mm Pb, 2.0 mm Pb equivalent |
| Lead Glass Compliance | AS/NZS IEC 61331.1:2022 (attenuation properties of lead glass); shielding design per ORS C1 2024 and the project medical physics expert |
| Applications | Medical imaging rooms, radiology suites, dental clinics, veterinary facilities, industrial NDT areas |
| Sizes | As per project specification and medical physics expert requirements |
| Finish | Powder coated to specified colour |
| Shielding Continuity | Lead glass must overlap lead lining in wall per medical physics expert specifications |
| Weight | Substantially heavier than standard windows due to lead glass. Structural support must be verified |
| Warranty | As per project agreement (conditions apply) |
Critical Warning: X-ray rated windows are fixed (non-operable) only. The lead glass, frame lining, and wall lead must form a continuous shielding barrier with no gaps. Lead equivalence must be determined by a medical physics expert or other qualified expert (ORS C1 2024) for each installation.
Installation Requirements
General Installation
All steel window systems must be installed by competent personnel per manufacturer specifications. Installation quality directly affects window performance, weatherproofing, and (for X-ray windows) radiation shielding integrity.
Standard Window Installation
- Frame must be plumb, level, and securely fixed to wall structure.
- Flashing and weatherproofing per E2/AS1 for external windows.
- Sealant joints per manufacturer specifications.
- Glazing installed per NZS 4223 Parts 1 to 4.
- Operable windows must open, close, and lock smoothly after installation.
- External windows must be specified for the correct wind zone and building exposure.
X-Ray Window Installation
- Lead glass must overlap lead lining in the wall per medical physics expert specifications.
- Frame lead lining must be continuous with wall lead shielding: no gaps or shine paths.
- All joints between frame and wall shielding must maintain shielding continuity.
- Structural support must be verified as adequate for the weight of lead glass and lined frame.
- Under ORS C1 2024 clause 5(b), the holder of the source licence must ensure that structural shielding, including windows, is approved as adequate by a medical physics expert or another qualified expert; under clause 5(c) its adequacy must be verified and documented, in consultation with that expert, whenever circumstances change that could increase the risks. Any commissioning survey or leakage test is part of the project physicist's scope.
Quality Assurance
- Verify window alignment: frame must be plumb and level
- Check all sealant joints are continuous and properly tooled
- For external windows: verify flashing, drainage, and weatherproofing per E2/AS1
- For operable windows: test opening, closing, and locking mechanisms
- For X-ray windows: verify lead glass overlaps wall lead lining with no gaps
- For X-ray windows: shielding approved as adequate by the medical physics expert or other qualified expert (ORS C1 2024 clause 5(b)); any commissioning survey per the project physicist's scope
- Document installation with photos for building consent records
Maintenance Requirements
In accordance with NZ Building Code (Clause B2 Durability) and manufacturer specifications.
Maintenance Schedule
| Inspection Item | Frequency | Requirement |
|---|---|---|
| Visual inspection: frame, glass, seals | 12-Monthly | Check for damage, corrosion, seal deterioration, glass defects |
| Clean frames | 12-Monthly | Clean with mild detergent and soft cloth. Do not use abrasive cleaners |
| Weatherseals and gaskets | 12-Monthly | Inspect for deterioration, cracking, or loss of compression. Replace if needed |
| Operable window mechanisms | 12-Monthly | Check operation, lubricate hinges and mechanisms as needed |
| Sealant joints (external) | 12-Monthly | Check for cracking, adhesion failure, or deterioration. Re-seal if needed |
| Powder coat finish | 12-Monthly | Inspect for chips, scratches, or corrosion. Touch up as needed |
| X-Ray windows: radiation survey | 12-Monthly | Annual radiation survey recommended by qualified expert |
| X-Ray windows: lead glass integrity | 12-Monthly | Check for chips, cracks, or delamination in lead glass |
Maintenance Records
All inspections and maintenance must be recorded. Records should include:
- Date of inspection
- Inspector name
- Findings for each inspection point
- Details of any defects identified
- Corrective actions taken
- Date of next scheduled inspection
Common Issues to Watch For
- Deteriorated weatherseals allowing water ingress (external windows)
- Corrosion at frame joints or fixing points
- Failed sealant joints around frame perimeter
- Stiff or binding operable window mechanisms
- Damaged or cracked glass
- X-ray windows: any impact damage to lead glass must be assessed by a qualified expert before the room continues operation
Documentation & Resources
Download comprehensive documentation to support specification, installation, and maintenance of this product:
Installation Guides
https://restructcommercialdoors.co.nz/installation-guides/
Test Reports & Certifications
https://restructcommercialdoors.co.nz/technical-queries-evidence-requests/
Information Sheets
https://restructcommercialdoors.co.nz/information-sheets/
Need More Information? Contact our technical team for additional documentation, custom specifications, or project-specific support.
Warnings & Limitations
Critical Information: Read and understand all warnings before specifying, installing, or maintaining this product.
Installation Warnings
- Competent Installation Required: Steel window systems must be installed by competent personnel per manufacturer specifications.
- External Weatherproofing: External windows must be flashed and sealed per E2/AS1. Incorrect weatherproofing will result in water ingress and building damage.
- Wind Zone Specification: External windows must be specified for the correct wind zone and building exposure per NZS 4211:2008 (Amendment 1) or SNZ TS 4211:2022.
- Do Not Modify: Do not cut, drill, or modify the window frame or glazing without consulting the manufacturer. Any modification may void the warranty and compromise performance.
- X-Ray Windows: Shielding Continuity: Lead glass must overlap wall lead lining per medical physics expert specifications. Any gap is a potential radiation leakage path.
Use Limitations
- Not Fire Rated: These window systems are not fire rated. Do not use where fire resistance is required for windows.
- Standard Windows: No Radiation Shielding: Standard steel windows (RCD-SW-STD) do not provide radiation shielding. Use X-ray rated windows (RCD-SW-XR) where radiation shielding is required.
- X-Ray Windows: Physicist Specification Required: X-ray rated windows must be specified by a medical physics expert or other qualified expert (ORS C1 2024) for lead equivalence. The manufacturer does not determine the required shielding.
- X-Ray Windows: Fixed Only: X-ray rated windows are fixed (non-operable) to maintain shielding continuity.
- X-Ray Windows: Not for Gamma/Therapeutic Radiation: X-ray rated windows are designed for diagnostic energies (typically up to 150 kV). Not suitable for gamma radiation or high-energy therapeutic radiation.
- Structural Support: The surrounding structure must be adequate for the weight of the window system, particularly X-ray rated windows with lead glass.
- Thermal Performance: Glazing and frame must be specified to meet NZBC H1 energy efficiency requirements for the specific application.
Maintenance Warnings
- Regular Inspection Required: Weatherseals, gaskets, and sealant joints deteriorate over time and must be inspected annually.
- X-Ray Windows: Report Damage Immediately: Any impact damage to lead glass must be assessed by a qualified expert before the room continues operation.
- Do Not Use Abrasive Cleaners: Abrasive cleaners will damage the powder coat finish and may cause corrosion.
Product Bans & Use Restrictions
- No Current Product Bans: This product line is not subject to any current product bans or recalls in New Zealand.
- Hazardous Material (X-Ray Windows): Lead glass contains lead. It is encapsulated within the glazing unit. Handling and disposal must comply with applicable health, safety, and environmental regulations.
Section 26 Statement
As at 2026-09-11, the RCD Steel Window Systems product line is not subject to any warning or ban under Section 26 of the Building Act 2004.
Any future warnings or bans affecting this product will be immediately reflected on this disclosure page and noted on the BPIR Hub.
Regulatory Compliance
- Building Consent: Installation typically requires building consent. Check with your local Building Consent Authority.
- External Moisture (E2): External windows must comply with E2/AS1 weatherproofing requirements.
- Radiation Safety Act 2016: X-ray rated windows must comply with the applicable Ministry of Health ORS Code of Practice. Structural shielding must be approved as adequate by a medical physics expert or another qualified expert (ORS C1 2024 clause 5(b)).
Liability Disclaimer
Restruct Commercial Doors is not liable for performance failures resulting from incorrect installation, unauthorised modifications, inadequate maintenance, incorrect specification, or use outside specified parameters. X-ray lead equivalence is specified by the project's medical physics expert or other qualified expert (ORS C1 2024), not by the manufacturer.
Document Control
| Element | Value |
|---|---|
| Version | v1.1.1 |
| Last Updated | 2026-09-11 |
| Change Summary | v1.1.1 (2026-09-11): ORS C1 2024 shielding approval wording aligned to clauses 5(b) and 5(c) in the installation, quality assurance and regulatory sections. v1.1.0 (2026-09-11): Citations corrected after verification against the publishers: NZS 4211:2008 shown with Amendment 1 and its successor SNZ TS 4211:2022 (both accepted under Building Product Specifications 4.4.1.1); AS 2047:2014 designation corrected (no joint AS/NZS edition exists) with its amendments; glazing standards restated as NZS 4223 Parts 1 to 4 with AS 1288:2021 as the accepted alternative for selection; withdrawn equipment standard AS/NZS 3200.1.3 replaced by AS/NZS IEC 61331.1:2022 for lead glass attenuation; radiation adviser terminology aligned to ORS C1 2024; Section 26 date refreshed. v1.0.0 (2026-03-08): Initial publication |
This disclosure page is reviewed regularly and updated when product information, testing, or compliance evidence changes. Version history available on request.