33407 Construction of Unique Buildings and Structures Строительство уникальных зданий и сооружений 2304-6295 6 10.4123/CUBS.119.6 Moisture accumulation in the assembly joint of the window block abutment to the wall opening Moisture accumulation in the assembly joint of the window block abutment to the wall opening 0000-0002-8396-4870 57208300172 ABE-1858-2021 Kotliarskaia (Vasileva) Irina Leonidovna iravassilek@mail.ru 0009-0009-2163-8322 Ulanov Aleksandr Vadimovich 0000-0002-1196-8004 6508103761 O-6995-2019 Vatin Nikolai Ivanovich vatin@mail.ru 0000-0002-5156-7352 56352359500 G-1611-2018 Korniyenko Sergey Valeryevich svkorn2009@yandex.ru Peter the Great St. Petersburg Polytechnic University Volgograd State Technical University 04 11 2025 5 119 11906 11906

The object of research is a typical assembly joint of the window block junction with the wall opening. Method. The moisture regime of the typical assembly joint is calculated in a similar manner as for the enclosing structures. The study used the method of determining the maximum wetting plane; the graph-analytical method; an approximate analytical method for determining the position of the plane of possible condensation; an assessment of annual moisture accumulation and a test for compliance with the Rogers principle. Results. The calculation of the typical assembly joint using the maximum wetting plane revealed limitations in the tabular data. The analysis of the studies also revealed a high error in the formula for determining the partial pressure of saturated vapor at sub-zero temperatures. The approximate analytical method for determining the position of the plane of possible condensation also revealed limitations of the tabular data. The graph-analytical method did not reveal any intersection of the curves  and  at a temperature of -6.5 °C (the average January temperature), which indicates the absence of condensation at higher temperatures. An assessment of annual moisture accumulation showed that no moisture accumulation occurs throughout the year. The calculation identified a plane of maximum condensation at the outer boundary of the assembly joint. A rapid inspection using Rogers' principle confirmed the correct execution of the assembly joint. The identified deficiencies in the methods indicate the need for additional research to assess the moisture conditions of assembly joints, as the methods used form the basis of current regulatory documents.

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