ROCKWOOL RW5 Insulation Slab
Overview
ROCKWOOL RW5 is a high-performance stone wool slab designed for thermal, acoustic and fire protection across a variety of building components. The product is non-combustible and engineered for use in partitions, ceilings, floors and roofs.
Key Specifications
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Euroclass A1 reaction to fire in accordance with EN 13501-1 — meaning it will not contribute to fire growth.
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Declared thermal conductivity of 0.034 W/m·K (λD).
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CE-marked in accordance with EN 13162:2012 + A1:2015.
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Density exceeding 10 kg/m³ in line with Approved Document E.
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The product is available in a variety of thicknesses, and specialist facings can be supplied on request.
Suitable Applications
RW5 slabs are suitable for use in:
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Flat roofs
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Metal wall systems
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Partition and separation walls
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Intermediate floor systems
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Ceilings
Benefits
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Thermal efficiency: Helps maintain comfortable internal temperatures and supports energy performance.
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Acoustic insulation: Reduces sound transmission between spaces, contributing to a quieter indoor environment.
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Fire safety: As a non-combustible product, it adds an important layer of protection in building design.
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Versatility: Suitable for new build and refurbishment projects, across both domestic and commercial sectors.
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Durability: Maintains its shape and performance over time due to the inherent stability of stone wool.
Summary
ROCKWOOL RW5 is a robust insulation choice ideal for designers, contractors and builders looking for a slab product that covers multiple performance requirements — thermal regulation, sound attenuation and fire protection — without compromise.
