Vidholdová, Zuzana, 1975- The effect of outdoor weathering of thermally modified spruce and pine woods on their surface properties / Zuzana Vidholdová, Miloš Pánek, Ladislav Reinprecht. -- Graf., obr., tab. -- Lit. - Products from thermally modified wood used outdoors should be stable against sun, rain, wind, and biological agents. The effect of 1- to 24-month outdoor weathering of the Norway spruce (Picea abies) and Scots pine (Pinus sylvestris) thermally modified woods “Thermo- D produced in Oy Lunawood Ltd Finland” (TWs) on their selected surface properties – colour, gloss, roughness, and mould resistance is analysed in the paper. With prolonged weathering, the surfaces of both Thermo-D wood samples lost their original yellow-red shadow. They continuously turned greyer – in the CIE L*a*b* colour system, they obtained greener and bluer colours, together with the logarithmic increase in the total colour difference Δ𝐸∗𝑎𝑏. Surfaces of both Thermo-D wood samples within the first four months of outdoor weathering turned much lighter with a higher gloss. However, they got darker and matter due to adsorbing soot and dirt. Similar changes, i.e., as in the lightness and gloss, occurred in the roughness of weathered Thermo-D woods, which firstly decreased and subsequently increased with further prolongation of weathering. Moulds Aspergillus niger and Penicillium brevicompactum, in all cases, intensively attacked spruce and pine wood natural wood, Thermo-D wood, weathered natural wood, weathered Thermo-D wood.

In Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Zvolen : Technická univerzita vo Zvolene, 2023. -- ISSN 1336-3824. -- Vol. 65, no. 1 (2023), s. 23-34

I. Pánek, Miloš, 1976-2022
II. Reinprecht, Ladislav, 1953-
III. Acta Facultatis Xylologiae Zvolen : vedecký časopis Drevárskej fakulty. -- Vol. 65, no. 1 (2023), s. 23-34

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