Certified Fire Rated Glass and Fire Doors for Oita’s Construction Standards

In Oita, compliance with Japan’s Building Standards Law (Article 2) and local fire prevention ordinances is critical for commercial and high-rise residential developments. These regulations mandate specific fire resistance durations—typically 30, 45, or 60 minutes—for glazed openings in egress pathways and compartmentation walls. Antifires supplies fire rated glass and door systems that meet these localized requirements, ensuring that architects and specifiers can achieve both safety and design flexibility. The company’s products are tested under internationally recognized standards such as BS 476 Part 22 and BS EN 1634-1, providing verified performance for integrity (E) and insulation (I) ratings. For example, 28mm EI60 panels achieve 66 minutes of integrity and 64 minutes of insulation, aligning with Japan’s 60-minute fire resistance benchmarks. Additionally, Antifires references the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) guidelines for fire safety, ensuring full alignment with national codes. This localized approach helps Oita-based projects streamline approval processes while maintaining high safety standards.

Oita’s Compliance with Japan’s Building Standards Law and Fire Prevention Ordinances

Oita’s construction sector must navigate Japan’s Building Standards Law, which specifies fire resistance durations for glazed assemblies based on building height and occupancy. For high-rise towers near Beppu Bay, 60-minute integrity (E60) ratings are often required for stairwell enclosures and corridor partitions. Local fire prevention ordinances in Oita Prefecture further mandate that fire-rated glass maintain stability under seismic loads—a critical factor given the region’s proximity to active fault lines. Antifires’ 90-minute fire rated glass systems, tested under BS 476 Part 22, provide robust solutions for these scenarios. The glass structures, such as 10mm FPOS (3mm float glass + 4mm fire gel + 3mm float glass), offer integrity up to 135 minutes, ensuring that egress pathways remain sealed during a fire. Specifiers should also consider the use of intumescent seals and ceramic wool (3mm–6mm, density 210 kg/m³) to maintain compartmentation integrity during seismic events. By adhering to these standards, Oita projects can achieve both fire safety and structural resilience.

Selecting Fire Rated Glass Grades for Oita’s Seismic and Fire Resistance Demands

Selecting fire-rated glass for Oita’s seismic and fire resistance demands requires careful evaluation of both thermal and dynamic performance. The region’s mixed-use developments, particularly near Beppu Bay, face unique challenges where fire-rated assemblies must withstand earthquake-induced movement without losing integrity. Antifires’ 21mm FPOS glass (multi-layer composite insulated fire-resistant structure) achieves 120 minutes of integrity and 30 minutes of insulation, making it suitable for high-risk zones. During testing, surface glass cracks at 2–4 minutes, but the intumescent gel layers expand to seal gaps, maintaining compartmentation. For retrofitting projects, 26mm door glass (5mm + 5.5mm gel + 5mm + 5.5mm gel + 5mm) provides 89–90 minutes of integrity and 68 minutes of insulation, ideal for upgrading existing openings. The use of G.M.S. hollow steel frames with M6/M8 anchor bolts at 300–600mm spacing ensures structural stability under seismic loads. These specifications help Oita specifiers meet local zoning regulations while ensuring long-term safety.

Oita Building Applications: Fire Doors and Glass for Hotels, Factories, and Public Infrastructure

In Oita, fire-rated glass and door systems are essential for a range of building types, including hotels, factories, and public infrastructure. For hotels, 28mm EI60 panels (6mm + 5.5mm gel + 5mm + 5.5mm gel + 6mm) provide 66 minutes of integrity and 64 minutes of insulation, ensuring guest safety in corridors and stairwells. Factories require robust solutions like 50mm/54mm EI120 glass, which offers 120 minutes of both integrity and insulation, complying with Japan’s strict industrial fire codes. Public infrastructure projects, such as transportation hubs, benefit from 120-minute fire rated glass systems that maintain visibility and light transmission while preventing fire spread. The use of intumescent fire seals (20mm × 4mm) and ceramic tape ensures that gaps are sealed during a fire event. By integrating these systems, Oita’s building owners can achieve compliance with local fire prevention ordinances while enhancing occupant safety.

Antifires’ Localized Support and Certified Product Assurance for Oita Clients

Antifires offers comprehensive localized support for Oita clients, including technical consultation, product certification, and installation guidance. All products are tested under BS EN 1634-1 and ASTM E119, providing verified performance data for local fire department approvals. The company’s team works closely with Oita specifiers to select appropriate glass structures, such as 15mm FPOS (multi-layer tempered glass with intumescent gel), which achieves up to 132 minutes of integrity and 33–34 minutes of insulation. For projects requiring high insulation, 50mm/54mm EI120 glass ensures thermal protection up to 120 minutes. Antifires also provides detailed installation manuals, including expansion gap specifications (3mm–5mm filled with ceramic fiber) and frame anchoring protocols. This end-to-end support ensures that Oita projects pass final inspections efficiently, reducing delays and costs. By partnering with Antifires, local architects and contractors gain access to certified products that meet Japan’s rigorous fire safety standards.

REQUEST A QUOTE

Fill the form below to get in touch with us.

click

Frequently Asked Questions (FAQ)

Yes, Antifires provides fire rated glass that meets Japan’s JIS A 1304 standard for 60-minute fire resistance, suitable for Oita high-rise buildings. Products such as 28mm EI60 panels (6mm + 5.5mm gel + 5mm + 5.5mm gel + 6mm) achieve 66 minutes of integrity and 64 minutes of insulation, exceeding the 60-minute benchmark. These systems are tested under BS EN 1634-1 and BS 476 Part 22, ensuring compliance with both international and local standards. For high-rise applications, Antifires also offers 21mm FPOS glass with 120 minutes of integrity, providing additional safety margins for egress pathways and compartmentation walls.

Antifires offers comprehensive localized support to ensure Oita projects pass the local fire department’s final inspection. This includes providing certified test reports from BS 476 Part 22 and BS EN 1634-1, detailed installation guides for frame anchoring (M6/M8 bolts at 300–600mm spacing), and technical consultation on expansion gaps (3mm–5mm filled with ceramic fiber). The team also assists with product selection based on Oita’s specific zoning regulations, ensuring that fire-rated glass and door systems meet both fire resistance and seismic performance requirements. This end-to-end support streamlines the approval process and reduces compliance risks.

Yes, Antifires supplies fire-rated glass and doors specifically designed for Oita’s seismic retrofit projects without compromising fire integrity. Products like 26mm door glass (5mm + 5.5mm gel + 5mm + 5.5mm gel + 5mm) provide 89–90 minutes of integrity and 68 minutes of insulation, while the multi-layer intumescent gel structure ensures sealing during seismic movement. The use of G.M.S. hollow steel frames with ceramic wool (3mm–6mm, density 210 kg/m³) maintains compartmentation under dynamic loads. These systems are tested under ASTM E119 and BS 476 Part 22, ensuring they meet both fire and seismic safety standards for retrofitting applications.