Humidity Conditions of Aerated Concrete Walls Depending on the Type of Finishing Coating

Abstract

A study was conducted to analyze how different types of plaster coatings affect the humidity levels in aerated concrete walls under varying climatic conditions. The suggestion is to utilize a specialized heat-insulating lime plaster designed specifically for finishing aerated concrete. It has been determined that the use of a specialized heat-insulating lime dry building mixture allows the temperature to be reduced at which condensate begins to fall in the enclosure by 1.5–7.0 °С. The research determined the amount of condensation that occurs during periods of negative outdoor temperatures in different climatic zones when using these walls. It has been established that the use of a specialized heat-insulating lime dry building mixture allows for some external walls to exclude the formation of condensate, while for others the amount of condensate falling out is reduced by 21.5–50.6%. Thus, it has been established that the use of a specialized heat-insulating lime dry building mixture significantly improves the moisture regime in the outer walls of aerated concrete.