Fire Resistance
Non-combustible Rockwool core provides excellent fireproofing with ratings up to 2–4 hours, making it suitable for fire-rated buildings and safety-critical projects.
Premium Fireproof Rockwool Sandwich Panel for Insulation & Construction
Construction technology
What is a Rockwool Sandwich Panel?
A Rockwool Sandwich Panel is a three-layer building material consisting of outer metal sheets (pre-painted galvanized steel or aluminum) bonded to a core of high-density Rockwool insulation made from natural basalt rock. This unique combination delivers superior fire resistance, thermal insulation, and soundproofing in a single structural panel.
The outer metal layers provide strength, durability, and weather resistance, while the Rockwool core offers non-combustible fire protection with ratings up to 2–4 hours. This makes Rockwool Sandwich Panels the ideal choice for projects where fire safety, energy efficiency, and noise reduction are top priorities.
- Outer sheets: pre-painted galvanized steel or aluminum
- Core: high-density Rockwool (basalt rock fiber)
- Density range: 100–150 kg/m³
- Thickness options from 40mm to 150mm
- Wall width 1220mm / Roof width 830mm
- Fire rating up to 2–4 hours
Key advantages
Key Features of Rockwool Sandwich Panels
Thermal Insulation
Reduces heat transfer and maintains stable indoor temperatures, lowering energy costs for cold storage, warehouses and climate-controlled facilities.
Sound Insulation
Dense Rockwool core minimizes outside noise transmission, ensuring a quieter indoor environment for offices, studios and commercial spaces.
Durability and Strength
Metal-faced panels resist weather, corrosion and impact, providing long-lasting structural performance in all conditions.
Moisture and Pest Resistant
Rockwool naturally resists mold, moisture absorption and insects for consistent long-term performance.
Environmentally Friendly
Made from natural basalt rock materials, Rockwool is safe, recyclable and eco-friendly with no harmful chemicals.
Where they're used
Applications of Rockwool Sandwich Panels
Industrial Buildings
Factories, power plants and warehouses requiring fire-rated wall and roof systems with thermal insulation.
Cold Storage Facilities
Temperature-controlled storage with the added benefit of fireproof protection for food and pharmaceutical inventory.
Poultry and Dairy Farms
Safe, insulated structures that maintain optimal temperatures for livestock while meeting fire safety standards.
Commercial Projects
Shopping malls, offices and soundproof buildings requiring both fire resistance and acoustic performance.
Clean Rooms and Laboratories
Controlled environments where fire safety and precise insulation are critical for sensitive operations.
Partition Walls and Roofing Systems
Strong, insulated and fire-rated solutions for internal partitions, ceilings and roofing applications.
How we work
Our Manufacturing Process
Rockwool Core Preparation
High-density Rockwool slabs are cut and conditioned to the required density of 100 to 150 kg/m³.
Metal Sheet Preparation
Pre-painted galvanized steel or aluminum coils are cut, shaped and pre-treated for bonding.
Adhesive Application
Industrial-grade adhesive is applied to both faces of the Rockwool core for secure bonding.
Panel Formation
The Rockwool core is placed between two metal sheets and bonded under controlled pressure in a double-belt laminator.
Precision Cutting
Continuous panels are cut to the exact length specified by the project requirements.
Quality Inspection
Each panel is checked for dimensional accuracy, bond strength, surface finish and fire performance.
Packaging and Delivery
Approved panels are bundled, protected and delivered to project sites across Bangladesh.
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Our Demandable Products
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Lightweight insulated panel for walls, roofs and cold storage construction.
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Premium polyurethane core panel for maximum thermal efficiency.
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High density EPS blocks and sheets for insulation, packaging and construction.
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Custom molded EPS packaging for appliances, electronics and industrial products.
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Premium mineral wool insulation rolls and slabs for thermal and acoustic performance.
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EPS, PU and Rockwool pipe sections for hot and cold water systems.
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Insulated panels for freezer truck and van body construction.
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Why Choose RPS Construction?
Trusted Manufacturer
Premium raw materials ensure durability and consistent quality across every panel we produce.
Multiple Thickness Options
Available in 50mm, 75mm, 100mm, 150mm and 200mm to match your exact project requirements.
Custom Sizes and Designs
Tailored panels for roofing, walling, partitions and ceiling applications.
Professional Installation
Expert installation support and technical guidance ensure panels perform as designed.
Competitive Pricing
Factory-direct supply with competitive pricing without compromising on quality.
Nationwide Delivery
We deliver to project sites across all 8 divisions of Bangladesh.
Pricing
Rockwool Sandwich Panel Contact for Pricing
Fire-rated insulation panels � premium quality, competitive BDT pricing
Rockwool sandwich panels carry a premium over EPS and PU due to the basalt rock wool core � but they deliver unmatched fire safety and acoustic insulation. For pharmaceutical buildings, food factories, and any facility requiring non-combustible construction, Rockwool panels are the investment that protects lives and assets.
Pricing factors: Panel thickness (40mm�150mm), steel skin specification, density of the rock wool core (80�150 kg/m�), and project volume. The 2�4 hour fire resistance rating of Rockwool panels can also reduce insurance premiums for commercial facilities.
FAQ
Frequently Asked Questions
What is the price of Rockwool sandwich panel in Bangladesh?
Rockwool sandwich panel prices in Bangladesh range from BDT 750 to BDT 1,400 per square foot depending on thickness, core density, and steel specification. Rockwool panels are a premium product � the fire safety and acoustic performance justify the higher investment for compliance-sensitive buildings.
What fire rating do Rockwool panels have?
Rockwool sandwich panels achieve a fire resistance rating of 2�4 hours depending on panel thickness. The basalt rock wool core is non-combustible (Euroclass A1) and does not produce toxic smoke. This makes Rockwool the preferred choice for buildings requiring compliance with Bangladesh Fire Service regulations.
How does Rockwool compare to EPS and PU?
Rockwool excels in fire safety (non-combustible vs fire-retardant for EPS/PU) and acoustic insulation (STC 26�32 vs 20�24 for EPS). EPS offers the lowest cost, PU provides the best thermal insulation, and Rockwool delivers superior fire and sound performance. The right choice depends on your project's primary requirements.
Are Rockwool panels suitable for pharma buildings?
Yes. Rockwool panels are widely used in pharmaceutical manufacturing facilities, hospital construction, and laboratory buildings in Bangladesh. The non-combustible core, excellent acoustic insulation, and resistance to moisture absorption make Rockwool panels ideal for controlled environments requiring strict compliance.
What is the acoustic performance of Rockwool panels?
Rockwool sandwich panels offer Sound Transmission Class (STC) ratings of 26�32 depending on panel thickness. A 100mm Rockwool panel can reduce noise transmission by 28�30 decibels � making them excellent for factories adjacent to residential areas, generator rooms, and HVAC equipment enclosures.
What sizes are available for Rockwool panels?
RPS manufactures Rockwool sandwich panels in thicknesses of 50mm, 75mm, 100mm, 120mm, and 150mm. Standard widths are 900mm or 1000mm, with lengths cut to your project specifications. Custom sizes and special steel finishes are available for large orders.
Learn more
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Looking for a reliable supplier of Rockwool Sandwich Panels in Bangladesh? RPS Construction delivers premium fireproof insulation panels with unmatched performance and safety. Contact us today for a free consultation or quotation.