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We use only natural, carefully selected raw materials from proven suppliers to produce our stone mineral wool. The basic materials used for production are gabbro and basalt – volcanic rocks whose properties add to unique fire resistance as well as excellent thermal and acoustic insulating characteristics of the stone mineral wool. This way we create a unique product with exceptional parameters and versatile application. COVEROCK stone mineral wool as a natural product is resistant to atmospheric factors, which guarantees maintaining its insulating properties and remaining intact during many years of its life.