Waterproofing systems

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Criterion Cavity drained Multi-coat render Cementitious coating Defence against hydrostatic pressure Good if drainage maintained. Cavity thwarts hydrostatic pressure Good Average. Improved on positive side Ease of repair Repair possible during and after installation Defects can be located but reliable repair not easily achieved Good Requirement for sound substrate Good fixings required at specific spacings Sound substrate required Base render coat needed if substrate unreliable....