Energy performance of the building envelopes provided with interior plasters with moisture buffering effect

In this paper, three different plasters are investigated in order to study their effect on whole building envelope energy performance. As the studied plaster contain various amount of super absorbent polymers, they are primarily intended to control relative humidity levels in both building envelopes and interior environments. However, influencing moisture levels in the envelopes will have certain impact on energy performance as well. In order to investigate that effect, the material parameters of all studied plasters were determined and then, series of computational simulations was carried out. The results showed, that even a thin layer of interior plaster may have significant impact on overall building envelope performance. The studied plaster contributed to the reduction of energy consumption from 4 to 6 %.In this paper, three different plasters are investigated in order to study their effect on whole building envelope energy performance. As the studied plaster contain various amount of super absorbent polymers, they are primarily intended to control relative humidity levels in both building envelopes and interior environments. However, influencing moisture levels in the envelopes will have certain impact on energy performance as well. In order to investigate that effect, the material parameters of all studied plasters were determined and then, series of computational simulations was carried out. The results showed, that even a thin layer of interior plaster may have significant impact on overall building envelope performance. The studied plaster contributed to the reduction of energy consumption from 4 to 6 %.