COST FP 1303 Cooperative Performance Test – Results after two years outdoor exposure

IRG/WP 17-20620

B Lesar, M Humar, C Brischke, L Meyer-Veltrup, D Jones, N Thaler, J M Abascal, G Alfredsen, B Brunnhuber, E Grodås, M Irle, J Kers, M Klamer, K-C Mahnert, E Melcher, S Palanti, M Noël, E Suttie, N Pfabigan, M Touza

COST Action FP 1303 ‘Performance of Bio-Based Building Materials’ started in October 2013 and an ambitious program was set up for four years. Among this a collaborative field test was planned. The idea of the cooperative performance test was to distribute a fairly simple test set up to as many places in Europe as possible in order to collect performance data reflecting the full range of climatic exposure conditions within the COST zone. Performance tables were exposed on 15th September 2014 at 27 different locations around Europe. A folding table with boards consisting of three different materials (i.e. Norway spruce, English oak and thermally modified spruce) was shipped as ready-to-use test object. Significant colour changes and growth of blue staining fungi were found after two years of outdoor exposure. Also first signs of decay occurred on Norway spruce samples exposed in Hamburg, Germany.


Keywords: wood, performance, English oak, Norway spruce, thermally modified wood, moisture content, degradation

Conference: 17-06-04/08 Ghent, Belgium


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