Abstract
Determination method for maximum wetting plane position, which is conventional in Russia, is considered. The method is based on the theory of vapor-state and liquid-state moisture combined transfer. Expressions for moisture potential F and maximum wetting complex applied for maximum wetting calculation in the enclosing structure are quoted. Graphic modification of the calculation method for maximum wetting plane position is proposed. Three analytic techniques for the enclosing structure are formulated. These techniques allow graphical determination of maximum wetting plane within the enclosing structure layer, at the joint between adjacent layers, and outside the structure. This method is applied to the enclosing structure, which is represented a facade heat-insulating composite system with exterior plaster layer, aerated concrete masonry and mineral insulation. It is found out that maximum wetting plane of this structure is located inside insulation layer. The plane is determined by the first analytical technique. It is reported that calculation results using graphical method correspond to results obtained using existing analytical method.
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