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Rockwool Mineral Wool Insulation

5.00 out of 5 based on 1 customer rating
(1 customer review)

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  • Size of boards: 1200mm by 600mm
  • Breathable
  • Euroclass A1 Non-combustible
  • Unparalleled thermal performance
  • Hard-wearing
  • This product is sold in individual packs
  • Coverage per pack varies – please see below for coverage

Rockwool Mineral Wool Insulation Boards

Rockwool not only improves the thermal comfort of buildings, but it also helps to reduce noise within the building. Another benefit of Rockwool dual density insulation boards is that they are non-combustible; Rockwool insulation boards act as a fire barrier and do not contribute to the spread of fire. Rockwool is a breathable material, making it the insulation material of choice for architects and builders alike.

The Rockwool Mineral Wool dual-density slab is made up of two different density layers of wool. The outer layer of the board is made up of densely compressed wool to give a firm surface on which to apply the basecoat and render. Rockwool external wall insulation boards require metal pin mechanical fixings as well as a strong adhesive to tie them to the wall (a minimum of 7 fixings are required per m2).


Use netting on scaffolding as well as a protective rainproof covering to reduce exposure to elements such as rain and excess sunlight.


Rockwool Mineral Wool insulation slabs should be installed in accordance with the manufacturer’s instructions – these include guidelines on design and other aspects of application. We recommend the boards are fixed to the substrate with mortar/adhesive and mechanical fixings to ensure maximum adhesion.

Because of the greater weight of Mineral Wool, we advise that you use the EWI-225 Premium Basecoat for the application rather than a standard adhesive, which is used on lighter insulating materials. Apply a light, watery based coat of the adhesive to your prepared surface initially. When it is dry, apply the basecoat, then sink in the Fibreglass Mesh.

Coverage Rates

Thickness of board (mm) Coverage per pack (m²)
50 2.88
70 2.16
90 1.44
100 1.44
120 1.44
110 1.44
150 0.72
200 0.72

Technical Specifications

  • Composition: Mineral Wool
  • Thermal Conductivity: 0.036W/(m2K)
  • Density: 110kg/m³
  • Minimum Compressive Strength: 10 kPa
  • Reaction to Fire: Class A1 (non-combustible)
  • Size of boards: 1200mm by 600mm


Shelf life: please see the manufacturer’s date of expiry. Keep in a dry place, in the original undamaged packaging, avoid excess heat or UV light exposure.

Weight 139 kg

50mm, 70mm, 90mm, 100mm, 110mm, 120mm, 150mm, 200mm

1 review for Rockwool Mineral Wool Insulation

5.00 out of 5
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  1. Chris Burling

    Would recommend using this Rockwool on the outside walls. Was much denser than I was expecting so took basecoat well and the sound reduction it has made when in our house is incredible (live on busy street). Will have to wait for the winter to see how how it works in terms of thermal performance.

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