One of the significant threats for buildings is the possibility of changes in the building materials' properties because of the penetration and residence of moisture it them. In the case of insulating materials such damages may initially have an energy cost, since they reduce the insulating ability of the material. Furthermore, there may be economic consequences, like in the case of wetting the insulating material and/or the coating, with the implied partial or even total destruction of the latter, while in extreme circumstances there may occur consequences for the safety in case of corroding the subjacent concrete. Nevertheless, even in the simplest case of wetting of the material, the consequences may not be insignificant.
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