Montreal Fire Rated Glass Solutions: ULC Certified for Quebec Construction Code

Montreal's commercial and institutional building projects demand rigorous compliance with the Quebec Construction Code (QCC), Chapter I, Building, which adopts the National Building Code of Canada with specific provincial amendments. For fire-rated glazing, this code mandates that assemblies meet the CAN/ULC S101 standard for fire endurance tests of building construction and materials, as well as CAN/ULC S104 for fire tests of door assemblies. Antifires supplies ULC-listed fire rated glass systems specifically engineered to satisfy these local requirements, providing certified solutions for vertical openings, exit enclosures, and interior partitions across Montreal’s diverse building typologies.

The regulatory oversight of the Régie du bâtiment du Québec (RBQ) enforces strict adherence to fire separation distances and hourly ratings, typically requiring F-45 (45-minute) or F-60 (60-minute) fire-resistance ratings for glazed assemblies in egress paths and fire compartments. Antifires’ product range includes integrity-only (E) and integrity-plus-insulation (EI) classifications, tested under ULC protocols to ensure no flame penetration or excessive heat transfer. For detailed regulatory text, professionals can refer to the official RBQ Building Code documentation for specific chapter references.

Whether for new office towers along René-Lévesque Boulevard or retrofit projects in historic districts, Antifires provides fire rated glass assemblies that integrate seamlessly with steel framing systems, ceramic wool seals, and intumescent materials. Each system is backed by certified test data from accredited laboratories, ensuring that Montreal architects and contractors can confidently specify products that meet both code compliance and aesthetic demands.

Quebec Construction Code Chapter I Fire Separation Requirements for Montreal Commercial Buildings

Montreal’s building projects must adhere to the Quebec Construction Code (QCC), Chapter I, which mandates fire-resistance ratings for vertical openings and exit enclosures. These requirements are particularly stringent for commercial high-rise buildings, where glazed assemblies must prevent fire spread across compartments while maintaining structural integrity under furnace test conditions. Antifires’ fire rated glass assemblies are tested to ULC S101 and ULC S104 standards, ensuring compliance with local 45-minute (F-45) and 60-minute (F-60) fire separation requirements for interior partitions and exterior curtain walls.

The testing protocol involves exposing the assembly to a controlled furnace environment where type K thermocouples monitor temperature rise, and unexposed surface thermocouples measure thermal performance. For insulation-rated systems, the average temperature rise must not exceed 140°C, while the maximum rise at any single point is capped at 180°C. Antifires’ 26mm door glass achieves integrity of 89–90 minutes and insulation of 68 minutes, exceeding the F-60 threshold. Key technical features include:

  • Frame assembly: G.M.S. hollow steel sections with 12mm–15mm fire-rated insulation board.
  • Sealant system: 3mm–6mm ceramic wool (density 210 kg/m³) and 20mm × 4mm intumescent fire seals.
  • Anchoring: M6/M8 bolts at 300–600mm spacing to maintain structural stability under thermal expansion.

For Montreal’s mixed-use developments in Griffintown, these systems provide reliable fire separation without compromising natural light transmission.

Fire Rated Glass Selection for Montreal’s Mixed-Use and Institutional High-Rise Projects

For Montreal’s dense urban projects, including mixed-use towers in Griffintown and institutional buildings in the Quartier des Spectacles, Antifires offers fire rated glass with F-45 and F-60 ratings. These products feature 60-minute integrity and insulation (EW+EI) classifications, with tested U-values optimized for Quebec’s cold climate. The multi-layer composite structure—such as the 28mm EI60 panel (6mm + 5.5mm gel + 5mm + 5.5mm gel + 6mm)—reduces thermal bridging in glazed fire barriers, maintaining energy efficiency while meeting fire safety demands.

The glass composition incorporates intumescent gel layers that activate at elevated temperatures, expanding to form an opaque insulating barrier that blocks radiant heat transfer. During ULC S101 testing, the unexposed surface temperature rise is monitored via 10–55 thermocouples, with insulation failure defined as exceeding the 140°C average threshold. Antifires’ 50mm and 54mm ultra-high-performance glass achieves EI120 ratings, providing 120 minutes of both integrity and insulation—ideal for institutional applications requiring extended evacuation times.

Glass TypeIntegrity (min)Insulation (min)Typical Application
10mm FPOS13516Interior partitions (F-45)
26mm door glass89–9068Exit enclosure doors (F-60)
50mm EI120120120Institutional high-rise walls

These systems are engineered to minimize deflection (maximum 38mm–152mm toward furnace) while maintaining seal integrity.

Montreal Heritage Façade Retrofits and New Office Tower Fire Safety Demands

Montreal’s architectural landscape requires fire rated solutions for heritage building retrofits in Old Montreal and new office towers along René-Lévesque Boulevard. Antifires supplies fire rated glass doors and windows that meet both the stringent fire safety requirements of the Régie du bâtiment du Québec (RBQ) and the aesthetic needs of historic preservation districts. For heritage façades, the challenge lies in integrating modern fire-rated glazing into existing window profiles without altering the building’s character-defining elements.

Antifires’ fire rated glass systems are fabricated with slim-profile steel frames that mimic traditional mullion designs, accommodating single or double glazing configurations. The 10mm FPOS glass (3mm float + 4mm fire gel + 3mm float) provides 135-minute integrity, suitable for retrofitting historic windows where insulation is secondary to maintaining original sightlines. For new office towers, 21mm FPOS (multi-layer composite with intumescent gel) offers 120-minute integrity and 30-minute insulation, meeting the F-60 rating for curtain wall applications.

  • Heritage retrofits: Utilize 3mm–5mm expansion gaps filled with ceramic fiber to accommodate thermal movement without damaging original masonry.
  • New construction: Integrate 50mm EI120 glass with thermally broken frames to reduce heat loss in Quebec’s cold winters.

All assemblies undergo ULC S104 testing for door systems, ensuring compliance with RBQ’s inspection protocols for occupancy permits.

Antifires Proven Compliance with RBQ Inspections and Local Supply Chain Efficiency

Antifires provides ULC-labeled fire rated glass products that simplify RBQ inspection approvals for Montreal contractors. Each assembly is accompanied by certified test reports from accredited laboratories, detailing furnace pressure conditions (0 ±2Pa after 5 minutes), ambient test temperatures (27°C–36°C), and failure modes (cotton pad ignition, sustained flaming, or gap penetration). This documentation streamlines the permit process, as RBQ inspectors can verify compliance without requiring additional on-site testing.

Antifires’ local warehouse in the Greater Montreal Area ensures rapid delivery for urgent project needs, with stock levels maintained for common configurations such as 6mm E90 glass (integrity 90 minutes) and 8mm glass systems (integrity 73 minutes). The dedicated team offers French-English technical support, providing customized framing solutions—including G.M.S. hollow steel sections with ceramic wool seals—that align with Quebec’s unique building codes. Key logistical advantages include:

  • Lead times: 2–5 business days for standard products from local inventory.
  • Custom fabrication: 10–14 days for non-standard dimensions or heritage profile matches.
  • On-site consultation: Support for expansion gap calculations and anchor bolt spacing (300–600mm) per RBQ requirements.

This local supply chain efficiency reduces project delays and ensures that Montreal’s fire safety standards are met without compromising construction schedules.

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Frequently Asked Questions (FAQ)

Yes, Antifires’ fire rated glass assemblies are tested to the CAN/ULC S101 standard, which is the recognized fire endurance test method under the Quebec Construction Code (QCC), Chapter I. This standard evaluates the assembly’s ability to maintain integrity (resistance to flame penetration) and insulation (temperature rise on the unexposed side) under controlled furnace conditions. Antifires provides certified test reports for each product line, including the 10mm FPOS (135-minute integrity) and 28mm EI60 panel (66-minute integrity, 64-minute insulation), ensuring full compliance with Montreal’s building permit requirements. For projects requiring RBQ approval, these ULC-labeled products simplify the inspection process by providing verifiable third-party certification.

For Montreal’s commercial high-rise exit enclosures, the Quebec Construction Code typically requires a F-60 (60-minute) fire-resistance rating for glazed assemblies, as specified in Section 3.4. of Chapter I. This rating ensures that fire-rated glass can contain flames and limit heat transfer for 60 minutes, allowing safe egress during a fire event. Antifires offers products meeting this requirement, such as the 26mm door glass (89–90 minutes integrity, 68 minutes insulation) and the 50mm EI120 (120 minutes integrity and insulation). For interior partitions not directly serving as exit enclosures, an F-45 (45-minute) rating may suffice, depending on the building’s height and occupancy classification. Always verify specific requirements with the RBQ for your project’s unique parameters.

Yes, Antifires provides fire rated glass assemblies specifically designed for Montreal heritage building retrofits that require both RBQ approval and historical window profiles. The company offers slim-profile steel frames that replicate traditional mullion and sash designs, accommodating 10mm FPOS glass (135-minute integrity) or 21mm FPOS glass (120-minute integrity, 30-minute insulation) without altering the façade’s aesthetic character. These systems use 3mm–5mm expansion gaps filled with ceramic fiber to protect original masonry during thermal cycling, and all assemblies are tested to ULC S104 for door applications. Antifires’ team provides French-English technical support to ensure that the final installation meets both heritage preservation guidelines and RBQ fire safety standards, with certified documentation for permit submissions.