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Boerner Insulation

Boerner Insulation Company was established in 2019. In March 2021, the Company launched a mineral wool factory in Wykroty near Bolesławiec in Lower Silesia, which is one of the most modern facilities of this type in Poland. It supplies both general construction products for insulation of attics or partition walls, as well as wool for ventilated facades, ETICS insulation method, or insulation of flat roofs.

The company BOERNER INSULATION SP. Z O.O. declares that it is a large enterprise within the meaning of the Act of March 8, 2013, on countering excessive delays in commercial transactions (Journal of Laws of 2013, item 203, as amended).

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The mineral wool factory in Wykroty

Key features of the factory:

• Modern, highly automated production line
• High efficiency, amounting to 12 tons per hour (90,000 tons annually) of insulating materials
• Wide range of high-quality thermal insulation materials for all types of applications with densities from 30 kg/m3 to 200 kg/m3 and thicknesses from 20 mm to 300 mm
• Accredited laboratory, precise control of input raw materials and finished products
• Extensive storage areas for raw materials and finished products
• Professional and experienced team of specialists.

• Self-sufficiency. Waste-free and effluent-free production – a highly efficient system of recycling and reusing substances generated in the production process. Processing and utilizing the resulting waste in further production, for example, dust from the formatting of boards or from the fiber-forming process used to produce briquettes. The briquette production capacity is 180 tons per day. Gas afterburning systems and numerous filters are also employed to emit only minimal amounts of pollutants.

Technological Process

The main raw material for the production of wool are rocks from natural deposits. These rocks are the result of ancient volcanic activity, which makes them commonly available. These materials are ecological and natural, giving our products high durability, reliability, fire resistance, and a long service life.

The technological process begins with loading the raw materials into containers, from where they are dosed into the furnace according to a strictly established formula that guarantees a stable chemical composition. In the furnace, due to the high temperature generated by burning coke, the mineral raw materials are melted to form a homogeneous melt. The molten raw material at a temperature of about 1500°C is fed onto rapidly spinning centrifuge wheels, where fine fibers are formed from the molten substance. Then the fibers are impregnated with a binder and blown by air into the fiber settling chamber, where they are collected on a perforated conveyor in the form of a primary carpet, being a thin layer of intertwined fibers.

Next, using a pendulum conveyor, the carpet is layered on the scale depending on the specified density and thickness of the products being produced. The carpet then goes to the polymerization chamber, where it is hardened and acquires a stable thickness, after which it is cut into boards of the required dimensions. If necessary, the boards are arranged in packs and wrapped in heat-shrinkable film. They are then placed on pallets by robots according to customer requirements. Alternatively, products are also laid on wool decks, reducing the use of wooden materials. Protective film is stretched over the finished pallets, ensuring resistance to weather conditions during storage.

All manufactured products and raw materials are thoroughly controlled in the laboratory, and only after positive test results are they passed on to the next stage. In this way, we obtain durable, moisture-resistant, fireproof, and soundproof rock wool boards at the output, which can be used in civil and industrial construction.

The factory is equipped with a modern, technologically advanced machinery park with a high degree of automation of the production process.

Boerner Insulation is an environmentally friendly and energy-efficient company with efficient gas cleaning systems. Process water is recycled in a closed circuit. The solid waste produced in the process is recycled in a separate area, where it is processed into briquettes, which are then reused as raw material. This process allows for a reduction of environmental impact.

Boerner Insulation Products

Key features of our products – rock wool insulation:

Low thermal conductivity

The good thermal insulation properties of the products result from the structure of the material. The long and thin fibers of mineral wool are intertwined to create cells that keep air in a steady state, thereby achieving high thermal insulation properties.


Boerner Insulation rock wool insulation boards are non-combustible A1 class materials. The mineral fibers can withstand a temperature of about 1000°C and prevent the spread of flames. Stone wool insulation does not emit toxic gases when exposed to fire.

Vapor permeability

Thermal insulation boards ensure the permeation of domestic moisture generated in rooms to the atmosphere due to the porous structure of the material, providing the 'breathing of walls'. This allows for maintaining an optimal microclimate in the rooms and protects against the development of mold.


The boards have high hydrophobic properties and low water absorption, which ensures the durability of the material and unchanged thermal insulation properties.


The fibers of the products obtained from stone are characterized by high durability and mechanical resistance. The fibers are intertwined with each other during production, which results in spatial rigidity, and in combination with the addition of a binder, gives the material excellent strength properties that do not change over time.


Boerner Insulation rock wool boards have excellent acoustic properties. Thanks to their structure, they absorb noise and improve the acoustic insulation of rooms.


The main raw material for the production of rock wool boards is natural origin rocks. The binders used in the production of the boards are used in small quantities and are safe thanks to thermal processing.The use of Boerner Insulation reduces the human impact on the environment and the energy consumption needed for heating and cooling households. Rock wool, which has reached the end of its service life, can be easily recycled, thus preventing environmental pollution. The exploited rock wool, processed through technological processes, is fully utilized in the production of new full-value rock wool.


Rock wool boards installed according to usage guidelines last for over 50 years. The boards maintain their insulation properties and do not change shape throughout this period.