EWI SYSTEM INSULATION
PRODUCT
CVRock®
Render H Slab
CVRock® Render H Slab is a high-density stone mineral wool insulation board engineered for External Wall Insulation (EWI) and multi-purpose applications requiring enhanced mechanical strength and stability.
With a declared thermal conductivity of λD = 0.035 W/m·K and sound absorption coefficient of αW = 1.00, it provides excellent thermal, acoustic, and fire performance, ensuring durable protection and comfort in demanding environments.
Manufactured in 1200 × 600mm format, CVRock® Render H Slab delivers exceptional compressive strength (≥ 30 kPa), making it suitable not only for façade insulation systems but also for areas exposed to higher mechanical loads. As a Euroclass A1 non-combustible product, CVRock® Render H Slab ensures maximum fire protection and long-term performance.
Combining strength, precision, and versatility, it offers a reliable insulation solution for high-performance façades, floors, and structural envelopes where both energy efficiency and mechanical resilience are essential.
System Compatibility
Fully compatible with all major EWI render systems — including mineral, acrylic, silicone, and polymer-modified coatings.
The stable surface structure ensures optimal adhesion, crack resistance, and a flawless rendered finish.
High Compressive Strength & Dimensional Stability
The robust, fibre-bonded structure ensures long-term mechanical durability.
All products maintain their shape and insulating properties even under high loads, mechanical stress, or thermal fluctuations — ideal for render systems and impact-prone zones.
Application
External Wall Insulation (EWI) systems with mineral or synthetic renders
Solid wall refurbishments and retrofitting of existing buildings
Masonry and concrete façades requiring improved thermal and acoustic performance
Multi-layer façade systems as an outer insulation layer
Thermal and acoustic insulation in service areas, corridors, and internal walls
Fire-safe insulation behind rendered façades in low- and mid-rise buildings
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