摘要：The article discusses the issue of low thermal insulation
of partitions in large-panel prefabricated buildings. They were constructed
mainly in the 70's and the 80's of the twentieth century. Defects related
to freezing as well as vertical and horizontal joints of prefabricated walls,
began to appear as early as in the very first years of operation. It was very
burdensome for flat users due to lack of thermal comfort, mycological
problems and rising heating costs. The thermovision analysis covered
sections of panel partitions in real estate at Lazurowa Street in Warsaw,
which is a four-storey multi-family building, constructed in large-panel
system. The measurements were carried out in the periods of JanuaryFebruary
2016 before the thermal modernization of the building,
and in January 2018 after its modernization and renovation of the flat.
Before-and-after comparison of thermal insulation state was made on the
basis of surface temperatures of crucial spots. Furthermore, after changes
in the structure of external walls were finished, thermal comfort or
discomfort in the analysed room were visualised, using graphs
of the optimal temperature range of walls, ceiling and floor, depending
on the air temperature in the room.
其他摘要：The article discusses the issue of low thermal insulation of partitions in large-panel prefabricated buildings. They were constructed mainly in the 70's and the 80's of the twentieth century. Defects related to freezing as well as vertical and horizontal joints of prefabricated walls, began to appear as early as in the very first years of operation. It was very burdensome for flat users due to lack of thermal comfort, mycological problems and rising heating costs. The thermovision analysis covered sections of panel partitions in real estate at Lazurowa Street in Warsaw, which is a four-storey multi-family building, constructed in large-panel system. The measurements were carried out in the periods of January-February 2016 before the thermal modernization of the building, and in January 2018 after its modernization and renovation of the flat. Before-and-after comparison of thermal insulation state was made on the basis of surface temperatures of crucial spots. Furthermore, after changes in the structure of external walls were finished, thermal comfort or discomfort in the analysed room were visualised, using graphs of the optimal temperature range of walls, ceiling and floor, depending on the air temperature in the room.
