Assessing the airtightness performance of container-like buildings in relation to its effect on energy efficiency

Bekboliev, Mirbek
This study analyzes the effect of airtightness on the energy efficiency of single and adjacent containerized buildings, before and after refurbishment. It further gives an overview of air leakage problems found in the sample of prefabricated buildings manufactured and located in Turkey. The air leakage of standard container-like building depends on a number of factors like the age of the building, manufacturing quality and quality of assembly implementation. The airtightness of four typical containerized buildings has been measured. The fan pressurization method has been applied and carried out with the Minneapolis Blower Door test and complemented by Infrared Thermography Camera screening to document all leakages within the building envelope. All building energy simulations have been performed with WUFI Plus to investigate the outcome of the respective air leakage of the building obtained from site. Following that, retrofit measures have been applied on one of the sample buildings. Test and simulation procedures have been repeated after retrofit to compare results. The post-retrofit simulation results of the four buildings show that poor airtightness has a negative impact on the energy performance of the building. This information is crucial for the future development of improvement measures in manufacturing prefabricated buildings.


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This study examines the airtightness performance of four types of commonly-used container houses (CHs) and its impact on their energy efficiency. One of the CHs was treated by sealing all junctions inside the container envelope. The airtightness levels of unsealed and sealed CHs were measured by using the fan pressurization method. The interior surfaces of building envelope were scanned by thermal imaging in order to locate the areas suffering from air leakages and thermal failures. The annual energy consum...
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Energy performance in buildings has become one of the most broadly debated subjects in contemporary architecture; and current legislation has emphasized its importance by requiring buildings to possess an energy performance certificate. Due to the technological advances in computational tools, it is possible to analyze the energy performance of buildings before construction starts; however most energy performance evaluation tools, requiring complex solid models and high technical knowledge in the field, can...
Citation Formats
M. Bekboliev, “Assessing the airtightness performance of container-like buildings in relation to its effect on energy efficiency,” M.S. - Master of Science, Middle East Technical University, 2015.