Substrate check and preparation for renovation works indoors
A prerequisite for successful renovation is a prior survey and analysis of damage. One of the most important investigations is the recording of the type, thickness and characteristics of the existing masonry.
Examinations of the moisture on internal and external walls at different heights provide important information on the causes of the moisture damage. Such information is necessary in order to set up an appropriate renovation concept. This also includes recording data about the permeability of ground and hence which water load is prevailing.
Step by step
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5. Chisel a recess of 4 x 4 cm in the angle wall/floor. As a rule, a watertight and shrinkage-compensated mortar, for ex. weber.tec 933 must close this area. Thanks to its bonding strength it must be resistant against the backwards water ingress.