From lava to insulation

During a volcanic eruption in Hawaii the rocks in the interior of the volcano melted at once at the extremely high temperatures and were hurled into the air during the explosion. When the glowing masses of rock fell down on the surrounding territories, they were transformed into large wool-like tufts owing to the cooling of the air. A unique material was created from nature's own materials.

Today the stone wool is produced in a similar process. By means of a patented technology stones of the type diabase are melted and transformed into fibres. Binder is added to the fibres and they are shaped into wool. In the further production process the stone wool is pressed, shaped and cut according to exactly determined specifications. A unique combination of a large number of properties is found in ROCKWOOL stone wool.
Stone wool is:

  • Fire Resistant
  • Heat insulating
  • Non-combustible
  • Moisture and water repellent
  • Sound-absorbing
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