20.500.12556/DiRROS-20537 Crack size in coating and moisture problems comparing thermally modified and native spruce window frame profiles using hygrothermal simulation Fungal growth and degradation of wood may be caused by damage in the surface coating. The larger the cracks, the greater in principle the possibility of moisture-induced problems. Measuring basic unknown material parameters and employing hygrothermal simulations, the suitability and the maximum acceptable vertical crack size in the surface coating for a given bottom window profile made of thermally modified (TM) spruce(wood) with that made of native spruce were compared for location Ljubljana. Validation with the field test data was the second objective of the respective research. The average calculated maximum moisture content in TM spruce is about 4% (kg/kg) lower than that of native spruce. The 3 mm wide crack in the surface coating of a window frame made of native spruce is of the highest concern, whereas a 9 mm wide crack in the coating of a TM spruce profile is still acceptable. As far as moisture content is concerned in our study the TM spruce window frames were proved to be significantly more suitable for installation than the corresponding frames made of native Norway spruce. It was shown that isopleth, VTT and biohygrothermal models for mould growth do not properly capture the comparison between both materials, mainly because they classify both in the same material class/substrate category and they do not consider the material moisture content. hygrothermal simulations mould growth modelling cracks in surface coating thermally modified wood wooden window frame higrotermalne simulacije modeliranje rasti plesni razpoke v površinskih premazih toplotno modificiran les leseni okenski profil true false true Springer Verlag Angleški jezik Slovenski jezik © The Author(s) 2024 Neznano 2024-10-16 12:11:52 2024-10-16 13:13:14 2025-01-30 09:00:49 0000-00-00 00:00:00 2024 0 0 str. 2109–2119 Vol. 82 Oct. 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2024-10-10 620.1/.2 1436-736X 10.1007/s00107-024-02149-0 211655683 https://link.springer.com/article/10.1007/s00107-024-02149-0#rightslink 1 123a327a-8ba7-11ef-89f3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=28967 RAZ_Vidmar_Gregor_2024.pdf RAZ_Vidmar_Gregor_2024.pdf 1 5A96122A3F51CFC420E03542060EBD49 9da91c77d3aebecf5b4339dc109eba57098a6cbd8cbb62279cf656f7994bf4a8 83e6f412-8ba9-11ef-89f3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=28968 RAZ_Vidmar_Gregor_2024.pdf RAZ_Vidmar_Gregor_2024.pdf 1 76B2955BECD2BEBA1CADE1AAE2AA139F 265313baebdafbcd506f86b974aa30296b3cd14ac7f757aa45d25b34224c3917 962ffbb6-8ba9-11ef-89f3-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=28969 Zavod za gradbeništvo Slovenije 0 0 0