Heraklith wood wool panels
Heraklith® wood wool by Knauf Insulation

In some countries across the world Heraklith® is frequently used as a generic name for wood wool because of its continuous and growing presence over many years. But, where does it come from?

It comes from combining two words – Herakles (Hercules) and lithos (Greek for stone). Among his 12 legendary tasks, Hercules built a giant wall from boulders to divert powerful rivers to clean the king’s stables. Thus, his name proved to be the ideal inspiration for a name that represents architectural innovation and stone-strength durability.

Although it all started from humble origins, Heraklith® wood wool has become much more sophisticated. Today, Heraklith’s name is synonymous with high quality, high performance wood wool panels that are versatile and durable at the same time as offering  acoustic and thermal properties, and outstanding fire safety performance.

Heraklith A2 Decorative Panel

Improving since 1908


The history of Heraklith® goes back to when the first patent for wood wool panels was registered in Austria in 1908.   


The first factory-made panels to be sold under the Heraklith® brand name were produced in 1924 and it was not long afterwards that Heraklith® started working with architects, engineers and construction companies to expand the range of products.


In 1927, our Simbach manufacturing plant was built in Germany, where we have continuously improved the production process and products that have been produced. This was the only Heraklith® manufacturing facility until 1975 when a new plant was opened in the Netherlands (which has subsequently closed). This was followed by a further plant in Zalaegerszeg, Hungary which opened in 1989, remaining as the second Herkalith® plant today alongside Simbach.


In 2002, Heraklith® was acquired by the Knauf Group, and today forms a part of the Knauf Insulation range of products, providing thermal, fire safety and acoustic performance.

our plants


Cement-bonded wood wool panels are made from wood shavings, to which water and a mix of cement and lime is added. The wood wool basic recipe was invented back in 1908, and since then, we have continued to improve our panels.

Wood wool panels are ideally suited for improving the acoustics of a space, however, they can also be used for thermal performance and fire safety when combined with a rock mineral wool core.

Heraklith® wood wool panels comply with performance requirements for buildings. Thanks to their thermal, fire safety and acoustic performance, our solutions contribute to safe, comfortable and aesthetically pleasing working and living environments.

Advantages of wood wool panels

Wood wool panels have been proving their worth in construction for more than a century. Wood wool has many advantages:

  1. Wood wool panels offer good thermal and acoustic performance, especially when combined with other insulation such as rock mineral wool
  2. Wood wool panels are non-combustible with a Euroclass A2,s1-d0 reaction to fire classification
  3. Wood wool panels  help achieve an aesthetically pleasing finish to rooms including car parks and recreational areas  
  4. Wood wool cement panels are moisture and mildew resistant
  5. Wood wool panels are quick and easy to install

For more information on our range of Heraklith® products, click the links below: