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Wood-fibre insulation board

Wood fibre insulation consists of more than 80% wood fibres, the product is factory made and if necessary adhesive agents or other additives are added. The product is mainly used for thermal and acoustic insulation in building construction, produced of softwood and available as rolls, mats and boards. The raw material is basically waste wood from saw mills, e.g. slabs or chips. There are two manufacturing processes: wet process and dry process.

Mineral wool

This insulation material is produced from molten stone, cinder or glass and therefore in a kind of wooly constitution. Mineral wool is distinguished into resilient and non resilient insulation materials. Due to its low thermal conductivity, porous structure and elasticity it is used for thermal insulation, airborne sound insulation, sound absorption and impact sound insulation. The list of building materials ÖE, issued by the Austrian Institute of Construction Engineering (Österreichisches Institut für Bautechnik, OIB), mandates that all mineral wool products have to comply with EN 13162 regarding acoustic and thermal protection. The CE-certification of mineral wool products is necessary, either directly on the product itself or on a label affixed to the product. Performance requirements and regulation concerning their use are stated in ÖNORM B 6000.

Cellulose insulation

Cellulose insulation is offered in loose, free cellulose fibres or insulating boards. Insulation material made of cellulose fibres is used as non loadable insulating material for thermal and acoustic insulations. Cellulose fibres are mainly made of waste paper by mechanical crushing. By adding mineral salts during the manufacturing process the product can be provided with fire protection and an better resistance to biological attack. The product is used as a cavity insulation for walls, ceilings/floors and roofs. Loose, free cellulose fibres are inserted under pressure by machine processing in to the provided cavities and bond there to a compact insulating slab. The process of filling in the insulating material either takes place in pre-fabrication or at the construction site. The reaction to fire of cellulose insulation is classified according to EN 13501-1. The minimum requirement of the product as a building material is reaction of Euroclass E. But there are also cellulose insulation materials, which achieve under certain installation conditions reaction of Euroclass B. The processing guidelines of the manufacturer have to be followed. Cellulose insulation material requires a certificate of conformity in accordance with European Technical Assessment (ETA). The CE-certification will be displayed on the products, the packaging or the attached label.