Rock Wool Sandwich Panels: A1 Fireproof & Acoustic Insulation Systems
Rock wool insulated sandwich panels feature high-density basalt stone mineral wool fibers (100-110 kg/m³) oriented perpendicular to steel facings. Certified A1 non-combustible under EN 13501-1, they deliver up to 120 minutes of fire barrier performance (EI120) with exceptional acoustic sound dampening (up to 35 dB). Engineered specifically for fire-risk industrial plants, chemical storage, boundary firewalls, transformer stations and acoustic auditoriums.
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Key Engineering & Commercial Benefits
A1 Non-Combustibility Rating
Certified Class A1 non-combustible, withstanding temperatures over 1000°C without flaming droplets or toxic smoke.
120-Minute Fire Containment (EI120)
A 100mm wall panel prevents thermal penetration and fire spread for up to 120 minutes under EN 13501-2 testing.
Acoustic Soundproofing (Rw ≈ 32–35 dB)
High-density mineral fibers absorb sound waves, significantly dampening rainfall drumming and indoor industrial reverberation.
Hydrophobic Water-Repellent Fibers
Specialized hydrophobic additives prevent water retention and thermal degradation from airborne humidity cycles.
Available Systems & Models
Select the optimal profile and core configuration for your building envelope requirements.
Rock wool panels feature high-density mineral wool fibers positioned perpendicular to metal faces. Engineered for high-risk industrial facilities, transformer rooms and sound-insulated enclosures.
Manufactured with vertically oriented high-density rockwool basalt slabs (100 kg/m³) to deliver structural stability, acoustic damping, and Class A1 non-combustible fire resistance up to EI 120. Ideal for industrial firewalls, hazardous storage, petrochemical plants, and building envelopes requiring official fire department accreditation.
Concealed-fix panels hide all fasteners within the joint tongue, creating clean architectural shadow lines, uniform facades and preventing water ingress at screw points.
Insulation Core & Performance Comparison
Compare lambda thermal conductivities, fire ratings, densities and ideal project usages.
| Model & System | Application | Fire Rating | Density | Acoustic Rw | Key Advantage |
|---|---|---|---|---|---|
| SP-ROOF-ROCK (5 Hadve Çatı) | Yangın Riskli Sanayi Çatısı | A1 / EI60 – EI120 | 100 – 110 kg/m³ | ≈ 32 – 35 dB | Fire containment for foundries, heavy metallurgy and chemical roofs |
| SP-WALL-ROCK (Vidalı Duvar) | Yangın Kompartıman Duvarı | A1 / EI60 – EI120 | 100 – 110 kg/m³ | ≈ 30 – 34 dB | Boundary firewalls, transformer rooms and boiler plant compartments |
| SP-WALL-CONC (Gizli Vidalı) | Mimari Yangın Dayanımlı Cephe | A1 / EI60 – EI90 | 100 – 110 kg/m³ | ≈ 31 – 33 dB | Aesthetic concealed-fix exterior facade with A1 fire safety compliance |
| Taşyünü vs PUR vs PIR | Yangın Güvenliği Analizi | A1 Kesin Yanmaz | 100-110 kg/m³ | Akustik Lideri | Unrivaled legal compliance for fire division walls and noise dampening |
Thickness, U-Value, Weight & Logistics Matrix
Verify thermal resistance (R), permissible purlin spans and truckload volume per thickness.
| Thickness | Fire Performance | Transmittance (U) | Dead Weight | Rec. Purlin Span | Truckload Capacity |
|---|---|---|---|---|---|
| 50 mm | EI 30 (30 Dk A1) | 0.76 W/m²K | 15.5 kg/m² | 1.80 metre | ≈ 1.000 m² / Tır |
| 60 mm | EI 60 (60 Dk A1) | 0.63 W/m²K | 16.6 kg/m² | 2.00 metre | ≈ 850 m² / Tır |
| 80 mm | EI 90 (90 Dk A1) | 0.47 W/m²K | 18.8 kg/m² | 2.20 metre | ≈ 650 m² / Tır |
| 100 mm | EI 120 (120 Dk A1) | 0.38 W/m²K | 21.0 kg/m² | 2.50 metre | ≈ 520 m² / Tır |
| 120 mm | EI 120 (120 Dk+ A1) | 0.32 W/m²K | 23.2 kg/m² | 2.70 metre | ≈ 430 m² / Tır |
| 150 mm | EI 180 (180 Dk A1) | 0.25 W/m²K | 26.5 kg/m² | 3.00 metre | ≈ 350 m² / Tır |
Critical Engineering Guidelines for System Selection
Standards for purlin spacing, live loads, fire containment and joint detailing.
1. A1 Non-Combustibility & 120-Minute Fire Barrier (EI120)
Rock wool panels are certified A1 non-combustible under EN 13501-1. A 100mm wall panel delivers up to 120 minutes of structural fire integrity and thermal insulation (EI120), preventing fire propagation between industrial compartments.
2. Acoustic Absorption & Factory Noise Attenuation (Rw ≈ 35 dB)
The porous fibrous matrix delivers exceptional acoustic absorption (Rw ≈ 32-35 dB), attenuating rainfall drumming on roofs and reverberant factory machinery noise inside production halls.
3. Lamella Fiber Orientation & High Compressive Strength
Rockwool blocks are sliced into perpendicular lamellas and cross-laid before bonding with polyurethane adhesives. This vertical fiber orientation provides superior compressive resistance (100-120 kPa) and structural rigidity.
4. Building Fire Safety Code Regulations & Compartmentation
Under mandatory fire codes, industrial boundary walls within 5m of plot borders, generator substations, and evacuation routes must feature non-combustible A1 materials, requiring rockwool panels for operating permits.
5. Heavy Dead-Weight & Structural Steel Static Planning
Ranging from 15 to 26 kg/m², rockwool panels weigh approximately twice as much as foam cores. Structural steel framing, purlin sizing and crane lifting schedules must account for this added dead weight.
6. Hydrophobic Fiber Protection & Joint Flashing Watertightness
Hydrophobic silicone treatments protect mineral fibers from airborne humidity. Proper jobsite storage, intumescent joint sealants and insulated flashings ensure lifelong weather tightness.
Matching Flashings, Screws & Trims Package
Coordinated single-delivery guarantee: Color-matched flashings, EPDM fasteners, and covings.
Intumescent Fire Sealants
Heat-expanding sealant halts flames, smoke and toxic combustion gas spread.
Heavy-Duty Fasteners with EPDM
High-shear fasteners firmly anchor heavy mineral wool panels to steel purlins.
Insulated Ridge Flashings
Maintains continuous non-combustible A1 fire compartmentation along roof ridge.
Fire Barrier Corner Angles
Smoke-tight galvanized corner flashings prevent perimeter fire escalation.
Joint Fire Gaskets
Non-combustible mineral gaskets block draft and flame spread along panel seams.
Structural Fire Base Z-Channels
Secures fire-rated wall panels to structural slab and ceiling beams.
Panel Quantity & Logistics Calculator
Roof & Wall Sandwich Panel Quantity & Logistics Calculator
Define your building dimensions and scope (Roof, Wall or Complete Envelope) to estimate net surface area, tonnage, logistics and budget.
Frequently Asked Technical Questions
Detailed engineering answers on pricing, fire codes, installation spans and delivery.
Where are rock wool sandwich panels legally mandatory?
What temperature can rock wool sandwich panels withstand?
Does rock wool absorb water or humidity?
How effective is rock wool for acoustic soundproofing?
How much heavier is rock wool compared to PUR?
How many square meters of rock wool panels fit in a truckload?
What are the required roof pitch and purlin spans for rock wool roofs?
What steel gauges are recommended for rock wool panels?
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