PAROC Stonewool - the naturally sustainable insulation


Stone wool insulation is nature's own invention; harnessed for industrial use for more than 80 years. When the volcano erupts, the molten stone is fiberized by the wind on the slopes of the mountain. These thin fibres were the first form of stone wool.

PAROC Stonewool insulation is produced with similar principles; by melting and fiberizing volcanic stones; typically basalt, gabbro, anorthosite and dolomite at 1500°C. In the industrial production of stone wool insulation, we add a small amount of organic binder (2-4%) to stabilize the fibres. Air is trapped in tiny pores formed of stone wool fibres and creates a durable and non-combustible insulation with excellent thermal qualities. Immobile air trapped in the pores accounts for 95-99 percent of the insulation volume.


Due to the natural, non-combustible raw material, our stone wool insulation offers a unique combination of benefits:

We promote the use of life cycle assessments (LCAs) in the building industry and carry out LCAs for all our products to know and improve their environmental footprint.

BES 6001 certification

Paroc has been certified with the BES 6001 Responsible Sourcing standard for construction products by Building Research Establishment Limited (BRE). The certification includes all Paroc's European sites for the production of thermal insulation. Paroc was the first mineral wool insulation manufacturer to achieve BES 6001 and was awarded a “Good” rating for its responsible sourcing of materials.

ISO 14001 certification

Paroc has been granted ISO14001 certificate. This indicates that environmental aspects such as production emissions into the air, waste handling, utilisation of natural resources and energy efficiency are paid attention to at Paroc and the environmental impacts of production are constantly improved.  

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