75mm Rockwool Rainscreen Duo Slab For Walls (51.84m2 Pallet)

75mm Rockwool Rainscreen Duo Slab For Walls (51.84m2 Pallet)

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    £882.97 EX VAT £1,059.56 INC VAT

    Additional Info

    Product Code:
    • Application:
      For use within ventilated cladding systems, as well as sealed systems such as curtain walling
    • Type:
      Dual-density insulation
    • Product Size:
      1200mm x 600mm
    • Thickness:
    • Pack Coverage:
      51.84m2 Pallet
    • Estimated Delivery:
      2-3 Weeks
    • Speak to an insulation expert:
      Get in touch with us over our LIVE CHAT or 02038839057

    Product Description

    75mm Rockwool Rainscreen Duo Slab For Walls (51.84m2 Pallet)

    75mm Rockwool Rainscreen Duo Slab For Walls (51.84m2 Pallet)

    Thermally efficient non-combustible insulation.

    Rainscreen systems contain integral components that are vital in protecting a building from the environment. RAINSCREEN DUO SLAB® is A1 non-combustible (BRE tested and BBA approved) and provides thermal protection, weather proofing and enhanced acoustic performance

    RAINSCREEN DUO SLAB® is a dual-density stone wool insulation product specifically developed for use within ventilated cladding systems, as well as sealed systems such as curtain walling. Once installed, the robust outer surface of the slabs, in combination with a factory applied water repelling agent, acts to resist rain ingress during construction.

    Product Details

    Thickness: 50mm, 60mm, 75mm, 90mm, 100mm, 125mm, 150mm, 180mm

    Width: 1200mm

    Length: 600mm

    Pack Quantity: 6x

    Pallet quantity: 12x

    Pallet Coverage: 51.84m2

    Density: 60kg/m3

    Weight/m2: 4.20kg

    Thermal Conductivity: 0.035W/mK

    Thermal Resistance: 2.14m2K/W

    Compliance: BS EN 13162, ISO 14001

    Reaction to fire: Fire Properties A1 (BS EN 13501-1)

    Water vapour resistance: 5.9 MNs/gm

    Accreditations: BBA approved (17/5402)


    RAINSCREEN DUO SLAB is designed for use within ventilated cladding systems, as well as sealed systems such as curtain walling.

    Non-combustible insulation for ventilated façades

    - Euroclass A1 non-combustible - recommended for all building types, particularly those above 18m or deemed high risk

    - Easy to install, the tough outer layer of RAINSCREEN DUO SLAB resists damage on site and over-driving of fixings.

    - Shielding your spaces from unwanted noise - Dual Density stone wool insulation acts to absorb and reflect sound, trapping and dampening sound waves. More information, including in-situ testing, can be found in 'Acoustic Performance of Rainscreen Facade Systems'.

    - Repels water, yet remains breathable, limiting the risk of condensation

    - Optimal temperature whatever the weather outside – the thermal properties of RAINSCREEN DUO SLAB can dramatically reduce heating, cooling and ventilation costs, and reduce a buildings carbon footprint.


    Designed for use on high rise buildings

    Water-repellent: Fibres impregnated with a water repelling agent during manufacture

    Fewer fixings required for installation compared to standard stone wool slabs

    Robust front face resists damage and over-driving of fixings



    Fire proof Rated Euroclass A1 when assessed to EN 13501-1 using test data from reaction-to-fire tests.

    Wind resistance

    RAINSCREEN DUO SLAB fixed as indicated in Figure 1 has successfully undergone wind resistance testing by the Building Research Establishment.

    Wind loading fatigue tests were used to simulate the performance of the slabs when fully exposed and subjected to fluctuating wind loads during the construction stages of buildings. The tests simulated and exceeded the maximum UK basic wind speed of 56 m/s as defined by BS CP3: Chapter 5: Part 2: 1972. 

    Water resistance

    ROCKWOOL stone wool repels liquid water due to its fibre orientation and the presence of water-repellent additives.

    Acoustic performance

    The airborne sound reduction of several typical rainscreen buildups incorporating RAINSCREEN DUO SLAB was tested at the Sound Research Laboratories (SRL), with results of up to Rw 62 dB. 

    Condensation control

    The vapour resistivity of ROCKWOOL mineral wool is 5.9MNs/ gm. The slabs therefore reduce the risk of condensation, allowing natural drying-out of the structure. 


    Made from a renewable and plentiful naturally occurring resource, 75mm ROCKWOOL wall insulation saves fuel costs and energy in use and relies on trapped air for its thermal properties.

    Rockwool insulation does not contain (and has never contained) gases that have ozone depletion potential (ODP) or global warming potential (GWP).

    ROCKWOOL is approximately 97% recyclable. For waste ROCKWOOL material that may be generated during installation or at end of life, we are happy to discuss the individual requirements of contractors and users considering returning these materials to our factory for recycling.

    If you want to buy or have any questions about 75mm Rockwool Rainscreen Duo Slab For Walls please call us on 02038839057! You can also text us back in our live chat.

    Please find all datasheets in PDF & BROCHURES section.

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    75mm Rockwool Rainscreen Duo Slab For Walls (51.84m2 Pallet)

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