Influence of temperature and moisture on aging of glass wool

Abstract

The promotion of the long-term use of high-quality building stock is a very important subject. To accomplish this, it is necessary to understand the long-term changes in the properties of insulation materials. In this research, we verified the durability of glass wool by conducting a survey of the changes in this insulation with long-term use and by performing an acceleration test. As a result, it was found that under high-temperature and high-humidity conditions, the strength of the glass fiber decreases, and the binder deteriorates. However, the thermal conductivity did not increase. We then developed a piercing test to evaluate the aging of glass wool. Finally, we attempted to predict the aging by applying a life prediction model to the accelerated test.