Wood is constantly gaining in importance as a natural and sustainable construction material for buildings. As yet, however, no satisfactory fire-protection solution exists for wood in exterior applications. A lack of flame retardancy is an exclusion criterion for wooden components in tall or large-scale buildings, unless an expensive and time-consuming approval is applied for in individual cases. In collaboration with project partner German Textile Research Center North-West (DTNW), researchers at the Fraunhofer WKI have developed an environmentally-friendly flame-retardant coating for wood surfaces which are exposed to the elements.
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