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Fire Resistant Plasterboard
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Class A1 Fire-Rated Gypsum Systems for High-Stakes Architecture

Class A1 Fire-Rated Gypsum Systems for High-Stakes Architecture

Brand Name: SUNHOUSE
MOQ: 500 pcs
Supply Ability: 3000000 Meter/Meters per Month
Detail Information
Place of Origin:
Guangdong
Warranty:
1 Year
After-sale Service:
Online Technical Support, Onsite Inspection, Free Spare Parts
Application:
Indoor, Hotel, Villa, Apartment, Office Building
Design Style:
Modern
Feature:
Fire Resistant Plasterboard
Material:
Pure Natural Gypsum
Color:
Red
Usage:
Internal Wall Partition
Edge:
Square Or Tapered
Thickness:
12.5mm
Regular Size:
1220mm*2440mm
Packaging Details:
Our timber packed in pallet or in bulk/Loose packing(pallet is covered with package board and PVC tapes)
Supply Ability:
3000000 Meter/Meters per Month
Highlight:

A1 fire-rated gypsum board

,

fire-resistant plasterboard for architecture

,

high-performance gypsum systems

Product Description
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.