Superglass Superwhite 34 Blown Cavity Wall Insulation

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The object content is configured for use in UK, but it may also be suitable for use in other locations.


Superglass Superwhite 34 is a high performance and non-combustible glass mineral wool blown insulation for use as a full fill solution in new build masonry party/separating walls.


Features and benefits:

  • Thermal conductivity - 0.034 W/mK.
  • Manufactured in accordance with ISO 14001 – Environmental Management Systems.
  • Generic BRE Green Guide Rating of A+.
  • BRE Global verified Environmental Product Declaration (EPD).
  • Manufactured from up to 84% recycled glass which would otherwise go to landfill.
  • UKCA and CE marked to BS EN 14064-1.
  • Installed after the walls are built by Superglass approved contractors.
  • Dual solution - Can be used in masonry party walls and masonry external cavity walls.



Superglass Superwhite 34 is installed after the walls are built, from inside the building. It’s installed quickly and easily in any weather using existing machinery by a national network of Superglass contractors.


Fire performance

All Superglass products are deemed non-combustible and have a fire classification of A1 (the highest possible rating) when tested to BS EN 13501-1 Reaction to Fire.



All Superglass products are non-hygroscopic, will not rot, degrade or sustain vermin and will not encourage the growth of mould, bacteria or fungi.


Vapour resistance

All Superglass products offer negligible vapour resistance allowing vapour to pass freely through the insulation.

Platform Compatible Version Certified to
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