The Science of Time: Class A1 Fire-Rated Gypsum Systems for
High-Stakes Architecture
In modern structural engineering, fire safety is measured in
minutes. Our Class A1 Non-Combustible Gypsum Board is engineered to
serve as a critical thermal shield, delaying the transfer of heat
through partitions and ceilings. By integrating high-purity calcium
sulfate dihydrate with advanced fiberglass reinforcement, we
provide a passive fire protection solution that prioritizes
occupant safety and structural integrity during localized thermal
events.
The Endothermic Defense Mechanism
Beyond simple insulation, our boards utilize a chemical
fire-suppression process. The gypsum core contains approximately
21% chemically combined water. When exposed to intense heat, this
water is released as steam, creating a thermal barrier that
maintains the board's temperature at 100°C until the
crystallization water is exhausted. This "calcination" process is
what grants our 12mm and 15mm systems their certified 60 to
120-minute ratings.
Engineering Advantages & Reliability
- Structural Integrity (Type X Core): Enhanced with long-strand glass fibers to prevent shrinkage and
cracking under extreme temperature gradients.
- Zero-Smoke Toxicity: Composed of high-purity materials that release only water vapor
when heated, ensuring clear escape routes and breathable air for
occupants.
- Superior Acoustic Decoupling: The high-density core configuration offers a naturally high STC
(Sound Transmission Class) rating, ideal for hospital and hotel
partitions.
- Dimensionally Stable: Minimal expansion and contraction rates ensure that fire-rated
seals and joints remain intact over years of building settlement.
- Precision Edge Milling: Available in tapered and square edges to facilitate seamless
finishing for high-end aesthetic requirements.
Technical Specifications & Compliance
| Classification | Non-Combustible Class A1 (EN 13501-1 / ASTM E136) |
|---|
| Standard Compliance | ASTM C1396 / EN 520 Type F / BS 476 Part 22 |
|---|
| Thickness Range | 9.5mm, 12.0mm, 12.5mm, 15.0mm (±0.3mm tolerance) |
|---|
| Density Profile | Standard: 850kg/m³ | High Performance: Up to 1050kg/m³ |
|---|
| Fire Resistance Limit | 60 - 120 Minutes (System Dependent) |
|---|
| Thermal Conductivity | 0.19 - 0.24 W/(m·K) at ambient temperature |
|---|
| Environmental Safety | Zero Asbestos, Low Formaldehyde (E1 Grade), Recyclable Core |
|---|
Global Project Reference: Nexus International Hospital
Project Scope: The expansion of a 500-bed multi-specialty facility requiring
90-minute fire-rated separation for oxygen storage rooms and
emergency corridors.
Our Contribution: We supplied over 120,000 m² of 15mm Reinforced Fire-Rated Board.
Our technical team worked directly with the MEP consultants to
design a staggered double-layer system that met the 120-minute
local fire department requirement while achieving an STC rating of
52dB for patient privacy.
The Outcome: The project passed third-party thermal imaging tests and
smoke-leakage inspections on the first attempt, saving the
contractor weeks in the certification phase.
Primary Applications
- Critical Infrastructure: Data centers, electrical substations, and telecommunication hubs.
- Commercial Life-Safety Zones: High-rise elevator shafts, fire-escape stairwells, and service
ducts.
- Healthcare & Education: Surgery suites, laboratories, and school corridors where
evacuation times are vital.
- Industrial Compartmentation: Warehouse separation walls and hazardous material storage areas.
Logistics & Protection
We understand that board integrity is as important as its fire
rating. All exports are packed using moisture-resistant PE-wrapping
on reinforced wooden pallets with edge protectors. Every shipment
includes a Batch Certification Report, ensuring full traceability
from the raw gypsum mine to your construction site.
Frequently Asked Questions
Q: How do I distinguish between your fire-rated and moisture-rated
boards?
A: For safety and easy inspection, our fire-rated boards feature a
pink or red face paper. This allows architects and fire marshals to
verify correct installation at a glance.
Q: Can these boards be used in exterior applications?
A: These are designed for interior use. For external soffits or
areas exposed to direct weathering, we recommend our specialized
cement-based or glass-mat sheathing boards.
Q: Does the board lose its fire rating if it is cut or drilled?
A: The fire resistance is inherent to the core material. However,
penetrations for cables or pipes must be sealed with approved
intumescent fire-stop sealants to maintain the system's overall
rating.
15mm 4x8 Fire Resistant Plasterboard For Indoor Office Building Partition System
