In this study, two single wood treatments—copper impregnation (I) with thermo-hydro treatment (T) and vice versa—were combined to determine the effectiveness against wood decay fungi. Pine (Pinus sylvestris L.) sapwood and birch (Betula spp.) boards were treated accordingly, then cut into small-size specimens and exposed to brown rot (Coniophora puteana) and white rot (Trametes versicolor) fungi to determine mass loss (ML). The specimens were collected from the board ends and middle part to detect copper distribution and, consequently, decay resistance. Wood leaching according to EN 84 was performed to evaluate the double treatment efficiency in outdoor conditions (use class 3, EN 335). The durability of the board ends and middle part differed in single-impregnated wood. The higher amount of copper at the board ends tended to cause lower ML. Double-treated I/T boards showed a similar tendency. In double-treated T/I wood, a higher copper amount at the board ends provided a higher ML in this part. Obviously, the interaction between thermal and chemical treatment has affected the wood structure, copper distribution and fixation. In leached pine and birch wood, the double treatments T/I and I/T were more efficient against brown rot than single thermo-hydro treatment and impregnation procedures, ensuring the durability class (DC) 2 (CEN/TS 15083–1). Regarding white rot, there was no pronounced difference between both double treatments and single treatments as they ensured DC1.

在这项研究中，将两种单一的木材处理方法-铜浸渍法（I）和热加氢处理（T）以及反之亦然-结合起来确定了抗木材腐烂真菌的有效性。分别对松材（Pinus sylvestris L.）边材和桦木（Betula spp 。）板进行处理，然后切成小块标本，然后暴露于棕色腐烂（Coniophora puteana）和白色腐烂（Trametes versicolor））真菌以确定质量损失（ML）。从板的末端和中间部分收集样品，以检测铜的分布，从而检测出耐腐性。根据EN 84进行木材浸出以评估室外条件下的双重处理效率（使用3类，EN 335）。板端和中间部分的耐用性在单浸渍木材中有所不同。板端的铜含量较高往往会导致ML降低。经过双重处理的I / T板显示出类似的趋势。在经过双重处理的T / I木材中，板端的铜含量越高，该零件的ML越高。显然，热处理与化学处理之间的相互作用影响了木材的结构，铜的分布和固定。在浸出的松木和桦木中，双重处理的T / I和I / T比单一的热加氢处理和浸渍程序更有效地防止褐腐，确保了耐久性等级（DC）2（CEN / TS 15083-1）。关于白腐病，双重处理和单一处理在确保DC1方面没有明显差异。