TL;DR – Quick Summary
Rinac’s R-Wool stonewool insulated sandwich panels deliver A1-rated non-combustible fire protection, 2-hour fire integrity (BS476 Part 20 & 22), and superior thermal insulation for data centres across India. With panel thickness options from 50mm to 150mm, ISO & DIN EN compliance, and CFC/HCFC-free construction, R-Wool panels are the reliable, sustainable, and fire-safe choice for modern data centre infrastructure.
Rinac’s R-Wool stonewool insulated sandwich panels deliver A1-rated non-combustible fire protection, 2-hour fire integrity (BS476 Part 20 & 22), and superior thermal insulation for data centres across India. With panel thickness options from 50mm to 150mm, ISO & DIN EN compliance, and CFC/HCFC-free construction, R-Wool panels are the reliable, sustainable, and fire-safe choice for modern data centre infrastructure.
R-Wool stonewool insulated panel manufactured at Rinac’s state-of-the-art facility
Why Data Centres Need Fire-Safe Insulated Panels
India’s data centre market is expanding at an unprecedented pace. With this growth comes a critical requirement that facility planners cannot afford to overlook: fire safety. Data centres house mission-critical IT infrastructure worth crores, and a single fire incident can result in catastrophic data loss, service downtime, and significant financial damage.
Traditional insulation materials like PUF (polyurethane foam) carry B3 fire ratings, making them combustible and unsuitable for environments where uptime and safety are non-negotiable. This is where stonewool insulated sandwich panels change the game entirely.
At Rinac, we are addressing this gap with R-Wool, our premium range of stonewool insulated panels under the Firearmet brand. Engineered specifically for industries that demand fire resistance, superior thermal insulation, and soundproofing, R-Wool panels are redefining how data centres, semiconductor fabs, and EV manufacturing facilities are built across India.
120 Minutes
Fire integrity rating as per BS476 Part 20 & 22 – protecting your data centre when it matters most
Fire integrity rating as per BS476 Part 20 & 22 – protecting your data centre when it matters most
R-Wool Stonewool Insulated Panels: Built for Fire Safety
R-Wool panels use a non-combustible stone wool core that remains stable at temperatures exceeding 1000 degrees C. Unlike PUF or PIR alternatives, stonewool does not catch fire, does not melt, and does not release toxic smoke during a fire event. For data centre operators, this translates to a critical safety margin that protects both equipment and personnel.
R-Wool panel cross-section showing the non-combustible stonewool core
Top view of R-Wool panels with stone wool insulation core
Technical Specifications
Every R-Wool panel is manufactured to meet international quality benchmarks. Here is a detailed look at what makes these panels suitable for data centre construction:
| Feature | Specification |
|---|---|
| Core Material | Non-combustible stone wool |
| Fire Classification | A1 (Non-combustible) |
| Fire Resistance | BS476 Part 20 & 22 (120 minutes) |
| Thermal Conductivity | 0.044 W/m.K |
| Core Density | 95-100 kg/m³ |
| Sound Insulation | Rated ≥35 dB |
| Panel Thickness Options | 50mm to 150mm |
| Standard Lengths | 2m to 12m |
| Surface Coatings | 25 μm polyester, RMP, SMP, SDP, PVDF |
| Environmental Compliance | CFC/HCFC-free, Green Building certified |
| Standards | ISO & DIN EN compliant |
R-Wool panels ready for dispatch from Rinac’s manufacturing facility
Multiple panel configurations available to match specific project requirements
Why Choose R-Wool for Data Centre Construction?
Data centres have unique requirements that go beyond standard commercial construction. They need panels that deliver on fire safety, thermal management, acoustic control, and environmental compliance simultaneously. R-Wool checks every one of these boxes.
1. Non-Combustible Fire Protection
With an A1 fire classification and 120-minute fire integrity, R-Wool panels provide the highest level of passive fire protection available in insulated sandwich panels. For data centres where even minutes of fire exposure can destroy irreplaceable infrastructure, this extended fire resistance is essential. The non-combustible stone wool core does not contribute fuel to a fire, does not produce toxic smoke, and maintains structural integrity under extreme heat.
2. Superior Thermal Insulation
Data centres generate enormous amounts of heat and rely on precise temperature control to keep servers running efficiently. R-Wool’s thermal conductivity of 0.044 W/m.K provides effective thermal insulation that helps maintain stable internal temperatures and reduces the energy load on HVAC systems. Over the lifecycle of a data centre, this translates to measurable savings on cooling costs.
3. Acoustic Performance
Server rooms and cooling equipment generate significant noise. R-Wool panels, rated at 35 dB or higher for sound insulation, help contain noise within the facility and reduce sound transmission between zones. This is particularly important for data centres located in urban areas or mixed-use developments where noise regulations apply.
4. Dustproof and Clean Room Compatible
Data centres require dust-free environments to protect sensitive electronic equipment. R-Wool panels with their sealed metal facings and tight-joint systems create enclosures that minimize particle ingress, making them suitable for clean modular construction of server halls and network rooms.
5. Sustainable and Green Building Certified
R-Wool panels are CFC/HCFC-free and carry Green Building certification. As hyperscale operators and enterprise clients increasingly prioritize sustainability in their data centre builds, choosing panels that meet environmental standards is no longer optional. Rinac’s R-Wool panels help projects achieve IGBC and other green building certifications.
India faces a shortage of premium-quality insulated panels. R-Wool steps in by offering panels that combine fire resistance, thermal insulation, and soundproofing for mega factories with high occupancy. These are customized solutions for EVs, solar, electronics, data centres, semiconductor fabs, and many more manufacturing sectors. A reliable alternative with global standards to substitute imports.
Close-up of R-Wool panel showing the metal facing bonded to the non-combustible stonewool core
R-Wool vs. Conventional Insulation: How It Compares
Choosing the right insulation panel for a data centre is a decision that directly impacts safety, operating costs, and compliance. Here is how R-Wool stonewool panels compare against PUF and PIR alternatives commonly used in India:
| Parameter | PUF Panels | PIR (FM) Panels | R-Wool (Stonewool) |
|---|---|---|---|
| Fire Rating | B3 (Combustible) | B1 (Limited combustible) | A1 (Non-combustible) |
| Fire Integrity | Limited | 2 hours (BS476) | 2 hours (BS476 Part 20 & 22) |
| Thermal Conductivity | 0.021 W/m.K | 0.019 W/m.K | 0.044 W/m.K |
| Sound Insulation | Low | Moderate | ≥35 dB (Superior) |
| Toxic Smoke | Yes (during fire) | Reduced | None |
| Sustainability | CFC-based options exist | CFC-free | CFC/HCFC-free, Green Building certified |
| Data Centre Suitability | Not recommended | Suitable | Ideal |
While PUF and PIR panels offer lower thermal conductivity values, R-Wool’s A1 non-combustible fire rating and zero toxic smoke emission make it the safest choice for data centres where fire protection is the top priority.
Applications Across High-Performance Industries
R-Wool panels are not limited to data centres alone. Their combination of fire resistance, thermal performance, and acoustic insulation makes them suitable for a wide range of critical infrastructure projects:
Data Centres
Dustproof, fire-resistant panels for server halls, network rooms, and colocation facilities. 120-minute fire integrity protects critical IT infrastructure.
EV Manufacturing
Soundproofing and fire-safe solutions for battery assembly units and electric vehicle production lines where lithium battery fire risks require non-combustible construction.
Semiconductors & Electronics
Dustproof and thermally insulated clean rooms for semiconductor fabrication and electronics manufacturing where particle control is critical.
Solar & Hydrogen Cells
Durable and fire-resistant panels for renewable energy plants and hydrogen storage facilities where safety standards demand non-combustible materials.
Mega Factories & Warehouses
Cost-efficient, high-performance roofing and wall solutions for large-scale industrial facilities with high occupancy and fire safety compliance needs.
Food Processing
Fire-resistant and hygienic panels for food processing facilities that meet FSSAI and HACCP compliance requirements.
Why Rinac for Your Data Centre Project?
With over 30 years of experience in building critical infrastructure across India and 23 countries, Rinac brings deep engineering expertise to every data centre project. Our two state-of-the-art manufacturing facilities in Bangalore and Murbad (Maharashtra) ensure quality control at every stage, from raw material selection to finished panel dispatch.
Rinac has delivered 10,000+ projects for 6,000+ clients including some of India’s largest enterprises. Our engineering and construction solutions division specializes in end-to-end project delivery, from design and engineering through manufacturing, installation, and after-sales service. With 14 branch offices across India, we provide pan-India coverage with dedicated local support for your data centre build.
30+
Years Experience
Years Experience
10,000+
Projects Delivered
Projects Delivered
6,000+
Clients Served
Clients Served
14
Offices Across India
Offices Across India
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Frequently Asked Questions
Ready to Build a Fire-Safe Data Centre?
Talk to our engineering team about R-Wool stonewool insulated panels for your next data centre project. We will help you select the right panel specifications, plan installation, and ensure your facility meets the highest fire safety standards.
