Adhering to Cardiff’s Fire Safety Regulations Under Approved Document B
Cardiff developments must comply with the Welsh Building Regulations, specifically Approved Document B (Fire Safety), which governs fire resistance requirements for internal and external walls, doors, and glazed screens. Antifires fire rated glass and door systems are tested to BS 476 Part 22: 1987, ensuring verified integrity for durations ranging from 30 to 120 minutes. This standard is critical for compartmentation walls and escape routes in Cardiff’s mixed-use towers, where open-plan layouts demand transparent fire barriers that do not impede safe egress.
Key compliance features for Cardiff projects include:
- Certified Integrity (E) Ratings: Systems achieving E30, E60, E90, and E120 as per BS 476 Part 22, suitable for fire-resisting glazing in corridors and lobbies.
- Insulation (I) Performance: EI30 and EI60 classified assemblies limit temperature rise on the unexposed side to a maximum of 180°C, protecting adjacent escape routes from radiant heat.
- Tested Frame Assemblies: G.M.S. hollow steel sections with intumescent seals and ceramic wool packing, tested under furnace pressures of 0 ±2 Pa to replicate real fire conditions.
For Cardiff’s mixed-use towers, Antifires supplies 120-minute fire rated glass systems that provide both integrity and insulation, ensuring robust compartmentation without sacrificing natural light in communal areas.
Selecting Fire Rated Glass Integrity and Insulation Grades for Cardiff’s Climate
Cardiff’s coastal climate, with high relative humidity and temperature fluctuations, presents unique challenges for fire rated glazing. Antifires recommends EI-classified fire rated glass tested to BS EN 1364-1 and BS EN 1634-1, incorporating laminated intumescent interlayers that prevent thermal shock and maintain structural integrity under cyclical moisture exposure. For office partitions and atrium screens, E30 and EI60 ratings are commonly specified, balancing high light transmission with reliable passive fire protection.
Technical considerations for Cardiff’s climate include:
| Rating | Typical Glass Build-Up | Application |
|---|
| E30 (Integrity) | 6mm tempered single-layer | Internal office partitions, low-traffic corridors |
| EI60 (Integrity + Insulation) | 28mm multi-layer: 6mm + 5.5mm gel + 5mm + 5.5mm gel + 6mm | Atrium screens, stairwell enclosures |
| EI120 (Integrity + Insulation) | 50mm multi-layer insulated structure | High-rise compartment walls, fire-rated curtain walls |
For Cardiff’s humid conditions, Antifires uses ceramic tape (3mm–6mm, density 210 kg/m³) and intumescent fire seals (20mm × 4mm) to accommodate thermal expansion while preventing moisture ingress. The 60-minute fire rated glass with insulation is particularly suited for office environments where both fire safety and thermal comfort are priorities.
Meeting Project Demands in Cardiff’s Historic and Modern Building Stock
Cardiff’s building stock spans Victorian terraces near Cathays Park, Edwardian commercial buildings along St Mary Street, and modern student accommodations on Newport Road. Each project type requires a tailored approach to fire rated glazing. For retrofitting fire doors in heritage-listed properties, Antifires provides slim-profile systems that preserve original timber frames while achieving BS 476 fire resistance for up to 120 minutes. The 26mm glazed door glass (5mm + 5.5mm gel + 5mm + 5.5mm gel + 5mm) offers integrity for 89–90 minutes and insulation for 68 minutes, fitting within existing rebates without structural alteration.
For new-build student accommodations, Antifires supplies 28mm EI60 panels (integrity 66 min, insulation 64 min) for corridor glazing, ensuring compliance with Approved Document B’s requirements for fire-resisting doors and screens. Key installation parameters include:
- Expansion gap: 3mm–5mm, filled with ceramic fiber to accommodate thermal movement.
- Fixing spacing: M6/M8 anchor bolts at 300–600mm intervals into steel or concrete substrates.
- Frame construction: G.M.S. hollow steel sections with 12mm–15mm fire-rated insulation board.
For Cardiff’s conservation areas, Antifires offers fire rated glass doors that can be glazed into existing timber frames using ceramic wool packing and intumescent seals, preserving architectural heritage without compromising fire safety.
Why Cardiff Specifiers Trust Antifires for Certified Fire Protection
Cardiff specifiers and contractors trust Antifires for certified fire protection backed by UKAS-accredited test reports for BS 476 Part 22 and BS EN 1634-1 compliance. Each product is accompanied by a detailed test certificate listing furnace thermocouple data (Type K, 9–12 channels), unexposed surface monitoring (10–55 thermocouples), and furnace pressure conditions (0 ±2 Pa). This documentation ensures seamless building control approvals under the Building Safety Act 2022.
Key advantages for Cardiff projects include:
- Local Technical Support: Dedicated specification consultants provide CAD details, installation guidance, and fire strategy reviews for Cardiff-based architects and contractors.
- Reduced Installation Delays: Pre-assembled door and glazed panel systems with pre-fitted intumescent seals and ceramic wool packing minimize on-site adjustments.
- 10-Year Product Warranty: Covers manufacturing defects and performance degradation, ensuring long-term project assurance.
Antifires’ commitment to quality is demonstrated through rigorous testing: surface glass cracks at 2–4 minutes, inner layers fall at 2–6 minutes, and insulation failure (if any) occurs between 16–86 minutes, with maximum deflection of 38mm–152mm toward the furnace. This data provides Cardiff specifiers with precise performance benchmarks for fire engineering designs.
