The application of expanded cork board in the insulation of double walls (air gap) provides excellent thermal insulation for a long time period plus suitable acoustic comfort.
Double walls with an air gap tend to create serious problems with dampness which is why it is of paramount importance to create a groove at the bottom of the air gap, on the slab, with an outlet to the exterior, thereby creating ventilation of the air gap which, along with the barrier caused by the expanded cork board, eliminates any dampness problems.


The Expanded Cork Agglomerate, internationally called “INSULATION CORK BOARD” or ICB, is a product of plant origin that comes from the falca, which is a very specific type of cork. This cork comes from the pruning and cleaning operations of cork oaks. After the falca extraction, it is crushed to separate the gravel and later granulation. The falca granules are placed in autoclaves and expanded by the action of water vapor.
Since the grains are confined to the space of the autoclave and have nowhere to expand, they become a block of agglutinated grains by means of the released resin.
Once stabilized, the Expanded Cork Agglomerate blocks are sawn in different thicknesses and packed in order to be placed in different markets.
The Expanded Cork Agglomerate is a 100% renewable product that provides an energy saving, with corresponding increase in comfort, provided by a natural and sustained isolation that does not compromise the needs of future generations.

Technical Sheet