How stone wool is made

The idea of producing stone wool was fostered on Hawaii. After volcanic eruption on the islands the natives found woolen strings of stone lying on the ground. They thought it was hair from their goddess, Madame Pele.

Today we know that stone wool is much more than that. We have discovered the unique qualities of the material that makes it perfectly suited for a wide range of purposes. That is why the ROCKWOOL Group has spent more than 70 years constantly improving its production process.

In the beginning everything was done manually, from the trusted employee who shoveled the approximately right amounts of raw material into the furnace and to the people wrapping up the final product.

Today highly sophisticated machinery ensures the quick and steady production of a superior stone wool quality at an ever lower cost.