Koskisen produces Finnish spruce timber, wood panels and exterior claddings treated with fire retardant coatings.
The customer can select the paint colour according to their preference. The distributor or end user receives the pre-coated fire-retardant timber products ready to use, with no need for further treatment.
The multi-stage industrial treatment process produces a certified fire-retardant wood product. The initial stage, where the wood surface is treated with a preservative against blue-stain, mould, and rot, is followed by a coat of fire-retardant paint. Finally the product receives an undercoat in the desired colour. The fire-retardant treatment guarantees the highest possible fire class – P1 – for wood products.
The most common application is spruce exterior cladding boards for facades; Koskisen manufactures these up to a maximum thickness of 57 mm. The fire protection characteristics are classified as B-s1, subclass d0, according to the SFS EN 13501-1 standard.
Timber treated with a fire-retardant coating can resist fire for longer than ordinary timber and does not ignite easily. Furthermore, the product is weather resistant. Koskisen’s fire-retardant coating system for wood can replace structural fire protection or a separate sprinkler system.
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