Mould and blue stain on heat treated wood
Ahola, P., J?ms?, S., Viitanen, H. and Viitaniemi, P.
2002 Seminar on Bio-deterioration of Coated Wood - Coating and Substrate, 4th April 2002, Portugal
Ahola, P., J?ms?, S., Viitanen, H. and Viitaniemi, P., (2002), "Mould and blue stain on heat treated wood", Seminar on Bio-deterioration of Coated Wood - Coating and Substrate, 4th April 2002, Portugal.
Abstract: |
Heat treatment improves biological durability and dimensional stability of wood. The degree of improved properties depends significantly on heat treatment process parameters.
Pine and spruce boards were heat treated at 225 oC for 6 hours under steam. The panels were painted with coatings, which are used on exterior cladding, joinery and fences in Finland. Performance of the coated heat treated and untreated panels was monitored during five years exposure.
Moisture content of heat treated wood has been found to be in a lower level compared to not heat treated wood substrate. However, no decrease in surface growth of coated wood was detected. |
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