Certified Fire Rated Glass Solutions for Wellington Building Projects

In the context of Wellington’s evolving built environment, the specification of certified fire rated glass is a critical component of passive fire protection strategy. Compliance with the New Zealand Building Code (NZBC), particularly Clause C3 – Fire Affecting Areas Beyond Fire Source, and the Acceptable Solution C/AS2, mandates that glazed assemblies in commercial and multi-story residential buildings must demonstrate verified fire resistance. Antifires provides a comprehensive range of systems tested to international standards such as BS 476 Part 22: 1987 and BS EN 1634-1, ensuring that fire doors, windows, and partitions meet the stringent requirements of Wellington City Council and local territorial authorities. These standards govern the critical performance metrics of Integrity (E) and Insulation (I), which are essential for containing fire and preventing heat transfer in escape routes and compartment walls. For detailed regulatory frameworks, professionals can refer to the official Ministry of Business, Innovation and Employment (MBIE) guidance on NZBC Clause C3. By integrating these certified solutions, Wellington projects achieve robust life safety and property protection, aligning with both national codes and local seismic resilience requirements.

Wellington Fire Safety Compliance Under NZBC and Local Council Bylaws

Wellington’s unique seismic and wind load conditions necessitate a rigorous approach to fire safety compliance under the NZBC. Clause C3 requires that fire-rated glazing systems maintain their integrity during a fire event while also withstanding the structural movements common in this region. The Acceptable Solution C/AS2 provides specific pathways for demonstrating compliance, often referencing the AS1530.4 standard for fire-resistant building elements. Antifires’ systems are engineered with robust framing solutions, including G.M.S. hollow steel sections and intumescent fire seals (20mm × 4mm), which accommodate the expansion gaps (3mm–5mm) required for seismic movement. For example, a 28mm EI60 panel, which demonstrates Integrity of 66 minutes and Insulation of 64 minutes, is ideal for compartment walls in high-density developments where both fire resistance and structural stability are paramount. This localized compliance ensures that Wellington’s commercial and residential projects meet the dual demands of fire safety and seismic resilience without compromising on design flexibility.

Performance Grades of Fire Rated Glass for Wellington’s Seismic and Wind Loads

The performance grades of fire rated glass in Wellington must account for both fire resistance and environmental loads. Systems are classified by their Integrity (E) and Insulation (I) ratings, with common specifications including EI30 and EI60 for internal partitions and EI120 for critical fire doors. For heritage building retrofits, where preserving original aesthetics is vital, Antifires offers 10mm FPOS glass (3mm float glass + 4mm fire gel + 3mm float glass), which provides Integrity of 135 minutes and Insulation of 16 minutes. In new high-density developments, 50mm / 54mm ultra-high-performance glass achieves Integrity of 120 minutes and Insulation up to 120 minutes, meeting the stringent demands of Wellington City Council’s fire safety design requirements. The table below summarizes typical performance grades suitable for Wellington projects:

Glass TypeIntegrity (E)Insulation (I)Typical Application
10mm FPOS135 min16 minHeritage glazing, internal partitions
28mm EI60 Panel66 min64 minCompartment walls, escape routes
50mm/54mm EI120120 min120 minFire doors, high-risk areas

These systems are tested under controlled conditions, including furnace temperatures monitored by Type K thermocouples and ambient conditions between 27°C and 36°C, ensuring reliable performance in real-world scenarios.

Fire Rated Glass Applications in Wellington’s Commercial and Infrastructure Projects

Wellington’s public infrastructure projects, such as hospital corridors and university campus escape routes, demand fire rated glazing that provides both 60-minute integrity and insulation to protect occupants and facilitate safe egress. For instance, in a hospital corridor, a 26mm door glass system (5mm + 5.5mm gel + 5mm + 5.5mm gel + 5mm) offers Integrity of 89–90 minutes and Insulation of 68 minutes, exceeding the minimum requirements for such high-occupancy areas. Similarly, in university buildings, fire partition solutions using 21mm FPOS glass (multi-layer composite insulated fire-resistant glass) provide Integrity of 120 minutes and Insulation of 30 minutes, ensuring compartmentation during a fire event. For detailed product specifications, professionals can explore the 60-minute fire rated glass integrity and insulation systems designed for such applications. These systems are installed with ceramic wool/ceramic tape (3mm–6mm, density 210 kg/m³) and M6/M8 anchor bolts at 300–600mm spacing, ensuring stability under Wellington’s seismic loads.

Why Wellington Architects and Specifiers Trust Antifires for Fire Rated Systems

Wellington architects and specifiers trust Antifires for its comprehensive technical support, including NZBC compliance documentation and producer statements (PS1/PS3). These documents are essential for demonstrating that fire rated glass systems meet the requirements of Clause C3 and local council bylaws. Antifires provides on-site fire testing verification, where systems are subjected to rigorous conditions such as furnace pressure of 0 ±2Pa and unexposed surface monitoring with 10–55 thermocouples. For example, the 90-minute fire rated glass integrity only systems have been tested to BS 476 Part 22, demonstrating reliable performance in Wellington’s unique environment. Additionally, Antifires’ local team assists with project-specific specifications, ensuring that every installation, from heritage building retrofits to new commercial developments, meets the highest standards of safety and compliance. This localized expertise, combined with certified test data, makes Antifires a preferred partner for Wellington’s most demanding fire safety projects.

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Frequently Asked Questions (FAQ)

Antifires fire rated glass provides a range of fire resistance ratings suitable for Wellington commercial buildings, including E60, E90, E120 for integrity-only applications and EI30, EI60, EI120 for combined integrity and insulation performance. For example, the 10mm FPOS glass offers Integrity of 135 minutes and Insulation of 16 minutes, while the 28mm EI60 panel provides Integrity of 66 minutes and Insulation of 64 minutes. These ratings are certified under BS 476 Part 22: 1987 and BS EN 1634-1, ensuring compliance with NZBC Clause C3. For project-specific requirements, specifiers can consult the 120-minute fire rated glass integrity and insulation systems for high-risk areas.

Antifires ensures its fire doors meet NZBC Clause C3 and Wellington City Council’s seismic requirements by using robust framing systems and certified fire-rated glass. The doors are constructed with G.M.S. hollow steel sections and intumescent fire seals (20mm × 4mm), which accommodate seismic movement through expansion gaps (3mm–5mm) filled with ceramic fiber. The glass, such as the 26mm door glass (5mm + 5.5mm gel + 5mm + 5.5mm gel + 5mm), provides Integrity of 89–90 minutes and Insulation of 68 minutes, tested under BS EN 1634-1: 2008. This design ensures that fire doors maintain their integrity during both fire events and seismic activity, aligning with local building codes.

Yes, Antifires can provide a Producer Statement (PS1) for fire rated glass used in Wellington heritage building renovations. The PS1 certifies that the specified glass systems, such as the 10mm FPOS or 21mm FPOS, meet the performance requirements of BS 476 Part 22 and NZBC Clause C3. Antifires supports this with comprehensive documentation, including test data showing Integrity of 135 minutes for the 10mm FPOS and Integrity of 120 minutes for the 21mm FPOS. This documentation is essential for obtaining building consent from Wellington City Council, ensuring that heritage projects retain their aesthetic integrity while achieving modern fire safety standards.