Certified Fire Rated Glass for London, Ontario: Meeting OBC and ULC Standards

For commercial construction projects in London, Ontario, compliance with the Ontario Building Code (OBC) is non-negotiable, particularly when specifying glazed assemblies for fire separations and egress routes. Antifires supplies a comprehensive range of fire rated glass and door systems that are rigorously tested to meet ULC-S101 and CAN/ULC-S114 standards. These certifications ensure that every installation—from downtown commercial towers to suburban institutional facilities—passes municipal inspections in the London region. The OBC mandates specific fire-resistance ratings (FRR) based on building height, occupancy type, and sprinkler presence. For example, vertical fire separations in buildings over three storeys often require a 45-minute to 2-hour FRR. Antifires’ product portfolio includes integrity-only (E) and combined integrity and insulation (EI) ratings, allowing specifiers to match exact OBC requirements without over-engineering. By integrating certified glazing systems with fire-rated steel frames and intumescent seals, contractors achieve reliable compartmentation that controls smoke and flame spread. For detailed guidance on local code applications, consult the Ontario Building Code official resource.

Ontario Building Code Compliance for London’s Fire Rated Glass Installations

London, Ontario, operates under the 2024 Ontario Building Code (OBC), which enforces strict fire-resistance ratings (FRR) for glazed assemblies in commercial and multi-residential buildings. For stairwell enclosures and corridor partitions, the OBC typically requires a 45-minute to 90-minute FRR, depending on building height and sprinkler coverage. Antifires fire door systems are tested to CAN/ULC-S114 and ULC-S101, ensuring that every glazed unit—whether single or multi-layer—meets the required integrity and insulation performance. The testing protocol includes furnace exposure at standardized temperatures, with thermocouples monitoring both the fire-exposed and unexposed surfaces. For instance, a 28mm EI60 panel achieves 66 minutes of integrity and 64 minutes of insulation, surpassing the 60-minute threshold commonly mandated for corridor separations. This certified performance allows London-based architects and engineers to specify glazed assemblies with confidence, knowing that the products will withstand the rigorous conditions of a real fire scenario. Using fire-rated steel frames and ceramic wool seals further ensures that the entire assembly—glass, frame, and perimeter joints—functions as a cohesive fire barrier.

Selecting Fire Rated Glass Grades for London’s Mixed-Use and Industrial Developments

London’s mixed-use developments and industrial facilities present diverse fire protection challenges. For commercial stairwells in downtown towers, 90-minute integrity (E90) glazing is often required to maintain safe egress. Antifires offers a 6mm E90 glass that provides 90 minutes of integrity under BS 476 Part 22, a standard recognized by the OBC for equivalency. In corridor partitions for schools and healthcare facilities, EI60 or EI30 ratings are common to limit heat transfer and protect occupants. The 28mm EI60 panel, for example, delivers 66 minutes of integrity and 64 minutes of insulation, making it suitable for high-traffic zones where both visibility and thermal protection are critical. For industrial settings with higher fire loads, the 50mm EI120 system offers 120 minutes of both integrity and insulation, ideal for fire-rated walls separating storage areas from production lines. Each product integrates seamlessly with fire-rated steel frames and intumescent seals, ensuring that the entire assembly meets the required FRR without compromising on aesthetics or natural light transmission. This adaptability makes Antifires a trusted partner for London’s evolving building landscape.

London’s Building Application Scenarios: From Downtown Commercial Towers to Suburban Schools

London’s building stock ranges from historic downtown commercial towers to modern suburban schools and industrial parks, each requiring tailored fire-rated glazing solutions. In high-rise commercial towers, 90-minute integrity glazing is essential for stairwell enclosures and elevator lobbies, ensuring safe egress during a fire event. Antifires’ 6mm E90 glass, tested to BS 476 Part 22, provides the necessary fire separation without obstructing visibility or natural light. For suburban schools and community centers, EI60-rated panels are commonly specified for corridor partitions and classroom vision panels, balancing fire safety with educational transparency. The 28mm EI60 system, with its 66-minute integrity and 64-minute insulation performance, meets these requirements while maintaining a slim profile. In industrial facilities, where fire loads are higher, the 50mm EI120 system offers 120 minutes of both integrity and insulation, suitable for fire-rated walls separating hazardous storage areas from production zones. Each installation uses fire-rated steel frames, ceramic wool seals, and intumescent strips to ensure the entire assembly performs as a unified fire barrier. By aligning with OBC requirements and ULC standards, Antifires provides London contractors with dependable, code-compliant solutions for every project scenario.

Why London Contractors Choose Antifires for Fire Rated Glass and Door Systems

London contractors choose Antifires for fire rated glass and door systems because of the company’s commitment to ULC-certified performance and local code compliance. Every product is tested to rigorous standards such as CAN/ULC-S114 and ULC-S101, ensuring that installations pass municipal inspections without delays. The 60 minute fire rated glass systems, for example, provide both integrity and insulation, meeting the OBC’s requirements for corridor separations in commercial buildings. Antifires also offers comprehensive technical documentation, including test reports and installation manuals, which simplify the approval process for London’s building officials. The company’s product range covers integrity-only ratings from E30 to E120 and combined EI ratings from EI30 to EI120, giving specifiers the flexibility to match exact project needs. Additionally, Antifires’ fire-rated steel frames, ceramic wool seals, and intumescent strips ensure that the entire assembly—glass, frame, and perimeter joints—functions as a cohesive fire barrier. This combination of certified performance, technical support, and product versatility makes Antifires the preferred supplier for London’s commercial, institutional, and industrial projects.

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Frequently Asked Questions (FAQ)

Yes, Antifires fire rated glass products are designed and tested to meet the requirements of the Ontario Building Code (OBC) for London, Ontario. All glazing assemblies are tested to ULC-S101 and CAN/ULC-S114 standards, which are recognized by the OBC for fire-resistance ratings. Whether the project requires integrity-only (E) ratings for egress routes or combined integrity and insulation (EI) ratings for corridor partitions, Antifires provides certified solutions that align with local municipal inspection criteria. The company also supplies comprehensive test reports and installation documentation to support permit applications and final approvals.

Antifires offers a wide range of ULC-recognized fire-resistance ratings for fire doors and windows suitable for London projects. These include integrity-only ratings such as E30, E60, E90, and E120, which prevent flame and hot gas penetration for specified durations. For projects requiring both integrity and insulation, combined EI ratings are available, including EI30, EI60, and EI120. For example, the 28mm EI60 panel provides 66 minutes of integrity and 64 minutes of insulation, while the 50mm EI120 system delivers 120 minutes of both. Each rating is verified through standardized furnace testing, ensuring reliable performance under real fire conditions.

Yes, Antifires provides project-specific compliance documentation for municipal building inspections in London, Ontario. This includes certified test reports from accredited laboratories, detailed installation manuals, and product data sheets that align with ULC-S101 and CAN/ULC-S114 standards. The documentation clearly outlines the fire-resistance ratings, glass composition, and frame specifications for each assembly. Antifires also offers technical support to help contractors and architects prepare submission packages for permit applications, ensuring that all glazed assemblies meet the Ontario Building Code requirements for the specific project type and occupancy classification.