Collection: Rockwool RW3

  • NOTE FOR STONE/GLASS WOOL ORDERS: As there's currently a high demand for wool materials nationwide, most wool orders may take an estimated 4 weeks to deliver. This includes the following brands, Rockwool, Knauf, Isover, Superglass, Ursa.
  • Rockwool RW3 (All Sizes)
    Regular price
    from £455.67 £546.80
    Sale price
    from £455.67 £546.80
    Regular price
    Unit price
    Sold out


    The ROCKWOOL RW Slab Range is used for thermal, acoustic and fire insulation in general building applications, certified to EN 13162. The product range consists of high-quality resin bonded slabs in a variety of thicknesses and densities. Specialist sizes and thicknesses are available to special order. Black or white tissue and aluminium foil facings are available on 600mm x 1200mm slabs. 

    • Excellent thermal, acoustic and fire insulation
    • Water repellent
    • Easy to handle and install
    • Cost-effective
    • Durable

    Technical Information

    Dimensions 600mm x 1200mm (1000mm for faced slabs)
    Thickness 25mm - 100mm
    Thermal Conductivity 0.034 - 0.035 W/mK
    Performance and Properties Euroclass A1
    Water Repellency Water Repellent
    Vapour Resistivity Negligible
    Environmental Zero ODP & GWP
    Standards BS EN 13162, ISO 14001: 2004

    Thermal insulation is an important factor that needs to be taken care of while building houses and other monumental structures. It hugely affects the temperature within the building and the transfer of heat that takes place between the inner and out portions of the walls which is entirely responsible for the regulation of heat in the building.

    The Range of Rockwool RW3 Insulation Slabs

    Thermal insulants from Build4less are sustainable and renewable resources. It constitutes of natural insulation properties which provide a cooling effect during adverse and harsh seasons, while the winter moisture absorption brings an opposite warming effect on the same.
    The Rockwool RW3 slabs are efficient and versatile pieces of insulation which can be used for thermal, fire insulation and acoustic insulation. These are manufactured in a variety of sizes, density and thicknesses which suit most of your requirements. These are perfect for varied applications including thermal insulation for walls, roofs, boiler rooms and floors. It works as a ventilation plant for all types of structures including buildings, ships, offshore platforms, acoustic ceilings, ships and partition panels.
    Environmental-friendly, Safe and Durable:
    The Rockwool RW3 Insulation Slabs contains no dust fibres. They are unaffected by the movement of air. This is an energy-efficient range of insulants which makes it perfectly environmental-friendly and is devoid of CFCs and HCFCs thereby protecting the ozone layer, conserving the balance of nature and ensuring that there is negligible or extremely low contribution in the global warming.


    • Manufactured with no–deleterious material
    • Eco-friendly, free of CFC and HCFC
    • Zero ODP and low GWP
    • A+ rated in accordance to the Bree Green Guide
    • Resistant to solvents, fungi & rodents
    • It provides excellent thermal, acoustic and fire insulation
    • The insulants in this range are Water repellent
    • It resists high temperatures and adverse weather conditions
    • It is easy to handle and install
    • Cost-effective and low maintenance
    Read More
    This site use cookies to improve your user experience. View Privacy Policy