What a location Twilley's ibex wool is


Stone wool can be used in almost all parts of a building for heat and cold insulation, fire protection and sound insulation. The selection of product variants is correspondingly large for the diverse uses. Rock wool is usually yellowish gray to olive green and has a very high temperature resistance and a melting point of over 1,000 ° C. Insulations made from it are in the DIN EN 13162 Thermal insulation products for buildings - Factory made mineral wool (MW) products - Specification regulated.

Depending on the manufacturer and product, different types of rock are used as the raw material base for rock wool, mainly diabase, basalt, dolomite and limestone. They are extracted in open-cast mining and are also available in large quantities in the long term, especially since the required requirement is relatively low: up to 150 m³ of rock wool can be extracted from 1 m³ of raw material. Another starting material are recycled molded bricks, which are made from mineral wool residues pressed with cement mortar. These raw materials are mixed and melted at around 1,500 ° C either in a melting tank or in a coke-heated cupola furnace. The subsequent fiberization takes place in the production in the melting tank according to the nozzle blowing or nozzle spinning process over rotating disks, in the cupola furnace according to the roller spinning process. Then binders are added, which give the insulation material stability and water-repellent properties. In the jet blowing process, the fibers are then cured by hot air, first formed into a wool fleece in the roller spinning process and then heated again to around 230 ° C for curing. Finally, in both processes, the rock wool is made into different insulation materials and packaged.

Stone wool is particularly characterized by its low thermal conductivity and low heat storage capacity, so it has good insulating properties and is very open to diffusion. It is non-flammable, water-repellent, age-resistant and durable. In addition, it has good soundproofing properties, is resistant to rotting, vermin and fungal attack and is biosoluble in the human lungs and therefore not harmful to health. During installation and removal, however, care should be taken to ensure low-dust work and suitable protective clothing.

The price-performance ratio is good, as is the ecological balance. Moisture and drying behavior are more favorable than with biogenic insulation materials. The processing is easy.

Stone wool can be used in a variety of ways as heat and cold insulation, for soundproofing and fire protection. It is suitable for flat roof insulation as well as for pitched roofs as insulation above, between and below the rafters. It can be used on facades as core insulation or under plaster, behind curtain walls and for the insulation of wooden frame and wooden panel constructions, as well as between house partition walls with soundproofing requirements. Inside a building it is used to insulate floors, ceilings and room partitions; Due to their high temperature resistance, they are also suitable for building and operating systems such as supply lines, pipes and ducts, boilers and tanks. For fire protection reasons, it is also installed in the case of bulkheads or the insulation of non-fire-resistant steel structures.

Non-biodegradable, mineral insulation materials such as rock wool must be properly disposed of - in the case of a building renovation as a whole and in a new building only the waste that has arisen. The professional processing after sorting dismantling and recycling to new rock wool insulation material takes place in our own recycling plants.

Delivery forms
Stone wool is available in various delivery forms, depending on the wide range of possible uses. In addition to panels and mats in a wide variety of sizes, loose rock wool is used in particular to fill small cavities. In the form of flakes, rock wool is used as blown insulation; Numerous molded parts such as insulation wedges are available for creating a slope or for building services and technical systems.

Technical specifications*
Rated value of thermal conductivity λd: 0.034 - 0.045 W / (mK)
Gross density ρ: 30 - 220 kg / m³
Water vapor diffusion resistance μ: 1 - 2
Fire behavior according to DIN 4102 Fire behavior of building materials and components: A1 - non-flammable or after DIN EN 13501 Classification of construction products and types of fire behavior: Euroclass A1 - non-flammable

* Note: All information without guarantee. The values ​​may change due to product developments, but are listed for the purpose of guidance.


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