Abstract

Air leakage of the building envelope is a significant contributor to radon concentration levels. The aim of our work was to determine the air leakage rate through the foundation wall and the floor joint. Different sealing methods were investigated to compare their effect on the air leakage of the joint. Additional tests were made to gather information about the construction quality and the reproducibility of measurement results. The air leakage rate decreased between 1.3 and 86 times depending on the sealing method. Essentially, the air leakage rate was found to depend heavily on the quality of the construction works.

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