Check and preparation of substrates in case of renovation works
The renovation works of old waterproofing need a careful evaluation of the substrate, since it must be matched with several types of substrates and old waterproofing materials, for example different masonry types, different bitumen or tar paints or coatings etc.
Simple & safe to the goal
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10. In case of high residual moisture, always apply a preliminary waterproofing coat with the watertight mortar weber.tec 933. If at the same time the substrate shows deep unevenness, use the waterproof render weber.tec 934 for levelling works. Prior to these operations, remove the old waterproofing layers completely.
Necessary products for this solution
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