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Expanded insulation cork board 60x500x1000mm

Unit Price from 1 pcs. 148,85 USD / pcs.

Unit Price from 2 pcs. 86,61 USD / pcs. Unit Price from 3 pcs. 65,46 USD / pcs. Unit Price from 4 pcs. 55,42 USD / pcs. Unit Price from 5 pcs. 49,31 USD / pcs. Unit Price from 10 pcs. 47,82 USD / pcs. Unit Price from 15 pcs. 46,70 USD / pcs. Unit Price from 50 pcs. 39,51 USD / pcs.

(incl. VAT)

Based on 62 Reviews

Model/Product no.: KE-60

Weight: 3.6 kg

Stock status: In stock

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Polystyrene is still widely used for insulation, especially when keeping upfront expenses to a minimum is the main priority. While it can get the job done, cost isn't the only factor that matters to every homeowner. Those dealing with cold-feeling walls or disruptive noise may prefer a natural option rather than conventional synthetic insulation. That's where Expanded Cork Insulation offers a compelling alternative. Produced entirely from natural cork, it provides both thermal and sound-insulating benefits in a single material.

Made From 100% Natural Cork

Comfortable Temperatures In Every Season

May Help Lower Energy Expenses

Made Without Synthetic Additives

Improved Thermal And Acoustic Comfort

Designed For Lasting Performance

Curious about expanded cork insulation?

WHAT IS EXPANDED CORK INSULATION, EXACTLY?

Expanded cork is a 100% natural insulation material supplied in the form of rigid boards. Its production method is quite different from that of many conventional insulation products. Cork granules are exposed to temperatures above 350°C, causing them to expand significantly – somewhat like popcorn. This process creates a highly porous internal structure filled with millions of tiny air pockets. The trapped air plays a major role in the material’s insulating performance by slowing heat transfer while also helping reduce sound transmission.

No synthetic glue is needed to hold the granules together. During heating, suberin is released. This naturally occurring resin-like substance is already present in cork and acts as the material’s own binder. It bonds the expanded granules into a solid block, eliminating the need for artificial adhesives or added chemical binders.

WHEN DOES EXPANDED CORK BOARD MAKE THE MOST SENSE?

Expanded cork can be a practical solution for a range of comfort and insulation issues inside a building. It is especially useful where cold walls, summer overheating, unwanted noise, or excessive echo are a concern.

It may be a good option if:

your home loses heat quickly and indoor temperatures are hard to keep steady,
rooms cool down noticeably in winter soon after the heat is turned down,
interior spaces overheat easily during hot weather and air conditioning is used frequently,
walls feel cold or seem to allow cold temperatures to pass into the room,
outdoor noise or sound from other areas of the home is affecting everyday comfort,
you want to improve room acoustics and reduce echo or reflected sound,
you are planning or building an energy-efficient home,
you need building insulation but prefer to avoid mineral wool or polystyrene,
you need insulation for a flat roof, sloped roof, or “green roof.”

Not sure whether expanded cork is the right fit for your project? Contact us and let us know what you want to insulate, which room or area is involved, and what issue you are trying to solve. We can then help you choose the most suitable solution.

HOW IS EXPANDED CORK DIFFERENT FROM STANDARD CORK?

Many familiar cork products, including laminate underlayment, decorative wall coverings, and conventional cork boards, are made from agglomerated cork. In this type of product, cork granules are pressed together using a binder or adhesive. This is what is generally meant by standard or “regular” cork. It is usually lighter in color and smoother to the touch, making it well suited for decorative wall and flooring applications, but it is not primarily intended for high-performance thermal insulation.

Expanded cork has a very different appearance and structure. It has a dark, almost black surface and a visibly open, porous texture. It also provides stronger insulating performance than conventional agglomerated cork, which is why it is commonly chosen when thermal insulation, sound control, or both are key priorities.

HOW DURABLE ARE EXPANDED CORK INSULATION BOARDS?

Expanded cork is a highly durable material that can remain stable over long periods of use. One naturally occurring component in its structure is suberin, which helps limit moisture penetration and contributes to resistance against microorganisms.

The material also offers excellent dimensional stability. Expanded cork can retain its shape across a very wide temperature range, from approximately –180°C to +120°C. It meets the requirements of EN 13170 and EN 13172 and has also received the French A+ indoor emissions classification, indicating very low levels of volatile substances released into indoor air.

HOW DOES EXPANDED CORK COMPARE TO POLYSTYRENE?

One of the main advantages of polystyrene is its lower upfront cost. That is a major reason it is so widely used as insulation. However, its ability to improve room acoustics may be fairly limited.

Expanded cork typically costs more at the beginning, but it provides benefits beyond thermal insulation alone. Its porous structure can also make a noticeable difference in acoustic comfort. The two materials also differ significantly in origin: cork is a fully natural material, while polystyrene is synthetic.

The better choice depends on your priorities. If keeping the initial purchase price as low as possible is your main concern, polystyrene may be suitable. If you place greater value on thermal comfort, sound reduction, long-term durability, and insulation made from a natural raw material, expanded cork may be the better option.

HOW SHOULD THE WALL BE PREPARED BEFORE INSTALLING THE BOARDS?

Start by making sure the surface is completely clean. Remove dust, dirt, and any remaining traces of old paint, adhesive, or wallpaper. Construction dust on newly finished walls should also be removed carefully, since even a thin layer can weaken the bond between the adhesive and the wall.
Check the wall for cracks, damage, and uneven areas. Holes, cracks, and more noticeable surface irregularities should be filled, repaired, and leveled before you begin installing the cork boards.

SHOULD EXPANDED CORK ACCLIMATE BEFORE INSTALLATION?

Yes. Ideally, place the cork boards in the room where they will be installed for about 72 hours before fitting them. This gives the material time to adjust gradually to the local temperature and humidity. Because cork is a natural material, installing it immediately after delivery may lead to small dimensional changes later, such as slight expansion or contraction. Allowing the boards to acclimate helps reduce that risk.

WHAT IS THE BEST WAY TO INSTALL EXPANDED CORK INSULATION BOARDS?

For bonding the boards, we recommend Wakol D-3540, a contact adhesive suitable for cork. It is also the adhesive we use for our own cork installations and has consistently provided reliable results.

Plan on using about 100 g of adhesive per board. As a general guideline:

0.8 kg of adhesive is enough for approximately 8 boards,
2.5 kg is enough for approximately 25 boards.

For long-lasting adhesion, proper surface preparation is essential. Before installation, the wall should be clean, dry, and level.

CAN EXPANDED CORK BE PAINTED A DIFFERENT COLOR?

Yes. Paints specifically designed for cork surfaces are usually the best option, although a high-quality wall paint can also be used.

Keep in mind that expanded cork naturally has a rough, porous surface. Because of that texture, the finished coat may not look completely smooth or perfectly uniform, even when the paint is applied carefully.

Is your home still uncomfortable even with the heat turned on? Cold wall surfaces can make a room feel chilly, often leading you to use more energy without achieving the level of comfort you want. Expanded cork insulation offers a natural way to improve your home's thermal performance, helping create a more comfortable indoor environment in both cold and warm weather.

Black text WHY choose it?» with cork displayed on the right against a white background.

#1 YEAR-ROUND COMFORT WITH LESS ENERGY DEMAND

The insulating properties of cork help maintain comfortable indoor temperatures while keeping them more consistent throughout the day. When temperatures drop outside, cork slows the transfer of heat from your living space. During hot summer weather, it can help keep rooms from heating up as quickly. As a result, your heating and cooling systems may not need to work as hard, making it easier to maintain a pleasant indoor climate throughout the changing seasons.

Long-term durability is another important benefit. Expanded cork boards can retain their insulating performance for decades, with a service life of around 50 years in many applications. When properly installed, the insulation can continue doing its job for years without frequent replacement, potentially reducing future renovation expenses and the cost of installing new insulation.

#2 NATURAL CORK INSULATION WITHOUT ADDED ADHESIVES

One of the defining features of expanded cork is its entirely natural material composition. The boards are manufactured from cork granules without added synthetic resins or adhesives. They do not release harmful substances or generate dust, making them a practical option for indoor spaces where air quality is a priority, including homes with children or people who are sensitive to allergens.

When choosing materials that will remain inside your home for many years, it makes sense to consider more than appearance and technical performance. You spend a significant amount of time in these spaces, so what the building material is actually made of matters as well. Synthetic materials are already common in countless everyday products. Choosing insulation made from natural cork is one way to reduce the amount of synthetic material used in your living environment.

#3 A RENEWABLE MATERIAL WITH NATURAL ENVIRONMENTAL BENEFITS

Cork offers notable environmental advantages that begin with the way the raw material is harvested. Cork oak trees do not need to be cut down to obtain the bark. Instead, the bark is carefully removed and naturally regenerates over time. As it grows back, the trees absorb increased amounts of carbon dioxide, helping contribute to the comparatively low carbon footprint associated with cork production.

This renewable cycle sets cork apart from insulation materials such as polystyrene and mineral wool, which depend on industrial manufacturing processes that require significant amounts of energy. Cork comes directly from a renewable natural resource. Its environmental qualities therefore go beyond an “eco-friendly” label – they are rooted in the origin, harvesting process, and inherent characteristics of the material itself.