The purpose of this study is to investigate the tensile strength degradation of PVC coated polyester fabric membrane material for movable temporary building, adopting an air-supported structure. The influence of the inflation-deflation and the folding membrane process on the tensile strength degradation has been observed by comparing the result of the test after the 4th usage and the result of unused material. The subject building has been used 4 times for 5 years, and according to the result, the tensile strength is being kept as it was unused. However continuous data accumulation is needed after further usage of this material.
