Earthwool Soffit Linerboard

Earthwool Soffit Linerboard

Earthwool Soffit Linerboard is a laminate of fire resistant slab with a tough, puncture resistant black tissue facing.

Earthwool Soffit Linerboard is thermally efficient, improves acoustic performance, is non-combustible, and provides a robust faced solution suitable for installation in exposed or semi exposed environments such as those associated with open sided car parks.

If you're installing Earthwool yourself then don't forget to check out our DIY Safety Instructions and Precautions before you start.

Density (kg/m3) Thickness (mm) Length (m) Width (mm) Area per pack (m²) Slabs per pack
80 130 1200 600 25.92 36
80 165 1200 600 20.16 28


For the thermal and acoustic insulation of residential and non-residential soffit applications, whilst also providing enhanced fire resistance performance.

Earthwool Soffit Linerboard is 1,200 x 600mm for ease of handling. The non-combustible nature of the insulation in Earthwool Soffit Linerboard makes it ideal for soffit lining and underlining of car parks and garages.

The rock mineral wool insulation used in this solution offers high thermal performance and has good compression resistance.


The rock mineral wool element of Earthwool Soffit Linerboards is manufactured in accordance with BS EN 13162, ISO 50001 Energy Management Systems, OHSAS 18001 Occupational Health and Safety Management Systems, ISO 14001 Environmental

Management Systems and ISO 9001 Quality Management Systems, as certified by Bureau Veritas.


Earthwool Soffit Linerboards are odourless, rot proof, non-hygroscopic, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.

Vapour resistivity

Earthwool Soffit Linerboards offer negligible resistance to the passage of water vapour. The rock mineral wool element to all variants having a water vapour resistivity of 5.00MNs/g.m. The black tissue face to Soffit Linerboard Standard has a water vapour resistivity of 200 MNs/g.m.


Earthwool Soffit Linerboards represent no known threat to the environment and has zero Ozone Depletion Potential and zero Global Warming Potential. The rock mineral wool element has a BRE generic Green Guide rating of A.

Handling and storage

Earthwool Soffit Linerboards are easy to handle and install, and easily cut to size where necessary. They are supplied in polythene wrap which is designed for short term protection only. For longer term protection on site, the product should either be stored indoors, or under cover and off the ground. Earthwool Soffit Linerboards should not be left permanently exposed to the elements.

Earthwool Soffit Linerboard

  • October 2016