Fire Resistant Calcium Silicate Board for Ceilings – A Safe Choice by Wedge India
- Raj Arya
- Jul 26
- 4 min read
When it comes to building interiors that are not only stylish but also safe, fire resistance becomes a critical factor—especially in ceilings. At Wedge India, we bring to you high-performance fire-resistant calcium silicate boards designed specifically for ceiling applications where safety, strength, and sustainability meet.
Why Choose Calcium Silicate Boards for Ceilings?
Calcium silicate boards are well-known for their non-combustibility, dimensional stability, and excellent insulation properties. Compared to traditional gypsum boards or plywood, calcium silicate boards offer:
Superior Fire Resistance – Withstand temperatures up to 1000°C
Low Thermal Conductivity – Helps control heat transmission in fire conditions
High Mechanical Strength – Rigid and crack-resistant under stress
Moisture and Mold Resistance – Ideal for humid environments
Applications in Ceilings
Commercial and industrial buildings
Hospitals, schools, and auditoriums
Data centers and electrical control rooms
Residential false ceilings in kitchens and high-risk zones
Our Wedge® Calcium Silicate Boards can be easily cut, drilled, and fixed with conventional tools, making them ideal for suspended ceiling grids, metal frames, or direct surface mounting.

Fire Safety Compliant
Wedge India’s boards are tested and certified to meet IS 8154 and BS 476 standards for fire resistance. When installed correctly, they help prevent flame spread, reduce smoke generation, and protect structural integrity during a fire emergency.
Eco-Friendly and Asbestos-Free
Unlike older insulation materials, Wedge boards are 100% asbestos-free, low in VOCs, and safe for both installers and building occupants. Manufactured under strict quality controls, our boards meet green building requirements and contribute to LEED certification points.
Elevate Your Safety: Why Wedge India Fire-Resistant Calcium Silicate Boards are Ideal for Ceilings
In any building, whether it's a bustling office, a serene home, or a public commercial space, fire safety is paramount. While walls and doors often get the primary focus, the ceiling plays a critical, often underestimated, role in a building's passive fire protection system. It acts as a crucial barrier, preventing the spread of flames and smoke between floors and compartments.
This is where Fire-Resistant Calcium Silicate Boards from Wedge India emerge as the superior choice for ceilings, offering unparalleled safety and performance.
The Ceiling: A Critical Element in Fire Safety
Traditional ceiling materials like standard gypsum plasterboard can offer some degree of fire resistance, but their performance can be limited under prolonged heat or direct flame exposure. They may degrade, lose integrity, and allow fire to spread rapidly into ceiling voids and upper floors, compromising the structural stability of the entire building.
For true peace of mind and compliance with stringent fire safety regulations, a material that actively resists fire and maintains its structural integrity is essential.

Introducing Wedge India's Fire-Resistant Calcium Silicate Boards for Ceilings
Our Calcium Silicate Boards are specifically engineered to provide exceptional fire protection, making them an ideal solution for all types of ceiling applications. Unlike materials that merely delay fire spread, our boards actively contribute to containing fire, protecting lives and property.
Key Fire-Resistant Features for Ceilings:
Non-Combustible (Class A Rated): Wedge India Calcium Silicate Boards are inherently non-combustible. This means they will not ignite, contribute to flame spread, or generate toxic smoke or gases when exposed to fire, ensuring cleaner air for evacuation.
High-Temperature Stability: Our boards are designed to withstand extremely high temperatures, maintaining their structural integrity and barrier function even under intense heat, preventing collapse and fire propagation.
Resistance to Calcination: Unlike some materials that degrade and crumble when heated, Calcium Silicate Boards exhibit excellent resistance to calcination, meaning they remain stable and continue to act as a barrier for extended periods.
Integral Fire Barrier: When installed as part of a fire-rated ceiling assembly, our boards create a robust fire barrier that delays the passage of fire and smoke from one compartment to another, providing valuable time for evacuation and firefighting efforts.
Fire Resistant Calcium Silicate Board for Ceilings: Why Wedge India Leads the Way
Choosing the right material for ceiling construction is not just about looks—it’s about safety, durability, and long-term performance. If your project demands a ceiling that stands strong against fire, moisture, and daily wear, the fire resistant calcium silicate board from Wedge India is the gold standard trusted by contractors, architects, and interior specialists across India.
Technical Specifications
Attribute | Value |
Board Size | 2440mm x 1220mm (8'x4') |
Thickness Options | 6mm, 8mm, 12mm (others on request) |
Density | >950kg/m³ |
Fire Rating | Class A, up to 2-4 hours (with system) |
Thermal Conductivity | <0.12W/mK |
Flexural Strength | >8MPa |
Water Absorption | <20% (WR variants) |
Composition | 100% asbestos-free, eco-safe |
Common Applications
False Ceilings: Living rooms, offices, conference halls, lobbies, and hotel corridors.
Fire Rated Partitions: Separators in hospitals, educational facilities, and high-rise buildings.
Wet-Zone Ceilings: Kitchens, washrooms, industrial kitchens, laundry rooms.
Commercial Ceilings: Retail, malls, auditoriums, theatres—where fire safety is non-negotiable.

Why Choose Wedge India for Your Ceiling Boards?
Market Leadership: Wedge India is among the country’s largest manufacturers and stockists with PAN India delivery and a sterling reputation built on reliability and technical support.
Proven in 500+ Projects: The board of choice for leading interior contractors and real estate developers.
Ready Stock & Fast Delivery: Ensures your project never waits for material.
Expert Guidance: From selection to installation, Wedge’s team helps you specify and fit the right solution—every time.
Order or Enquire Today!
Safeguard your next project with Wedge India’s fire resistant calcium silicate ceiling boards—where safety meets performance and design freedom. Contact Wedge India now for pricing, samples, or customized sizes, and experience ceiling protection at its best.
Can calcium silicate ceiling boards be used as exposed ceilings (without paint/plaster), or is finishing always recommended for longevity?