Natural expanded cork: the ecological replacement for polystyrene foam

This specific type of agglomerated cork, which is unique in several respects, is obtained by subjecting a suitably selected quantity of cork grains, enclosed in a rectangular metal mould, to a high temperature of approximately 350°C using superheated steam.
This high temperature causes the cork grains to expand, i.e. significantly increase in volume (a process similar to the production of popcorn from corn kernels).
During this process, one of the components of the cork cells, suberin, is released from the expanding grains and becomes a natural binder for the expanding cork grains.
The process continues until the mould is completely filled with cork material and the end result is a block of almost black agglomerate - hence the Portuguese name Aglomerado Negro - black agglomerate.
The resulting blocks of 1000x500x320mm, once cooled and stabilised, as is the case with blocks of standard agglomerated cork, are cut with band saws into slabs of 10mm thickness and more.
Thanks to this specific production method, we obtain the only type of agglomerated cork that is 100% natural and does not contain any artificial binder.
Natural expanded cork is an innovative category of building material that provides an environmentally friendly alternative to traditional polystyrene foam. It is a unique material that combines insulating thermal properties with an ecological approach. Here's why you should be interested in expanded cork as a replacement for polystyrene foam:

Thermal Insulation:

Natural expanded cork is an excellent thermal insulator. Its microporous structure creates a layer of air that effectively inhibits heat conduction. This means that rooms stay warm in winter and cool in summer, resulting in lower energy bills.

Ecology:

This is an eco-friendly alternative to traditional insulation materials. Expanded cork is extracted from the bark of the cork oak tree, without damaging the tree itself. It is a renewable source of raw material, which contributes to the protection of forests and nature.

Hypoallergenicity:

Expanded cork is hypoallergenic and does not release harmful chemicals. It is a safe material that does not cause allergies or irritation. It prevents the spread of fungi and mould.
Moisture resistance:

Expanded cork is moisture resistant, which means that it is not damaged or decomposed when it comes into contact with water. This makes it suitable for both interior and exterior insulation.

Easy Installation:

Expanded cork is easy to install. It can be adhered with installation foam or cork adhesive, and can be cut to fit the needs of the project.

Multi-purpose Application:

This material is used for insulating walls, ceilings, attics and floors. It is versatile and can be used in both residential and commercial construction.

Natural expanded cork is an innovative replacement for traditional polystyrene, combining high insulation performance with environmental concerns. Thanks to its advantages, expanded cork is becoming an increasingly popular choice in the construction industry, allowing for healthier and greener buildings.