New Residential Building — Targeted Sealing Work
When it’s a new building — and the walls are already wet
The building had just been handed over by the contractor. The residents moved in — and immediately discovered an issue: in one of the apartments, a wall became wet due to a leak from the facade.
The work was carried out on behalf of the construction company, which is obligated to provide insurance for construction defects for up to 7 years after completion.
What we did:
• Removed the cladding stones and opened the suspected problematic area
• Discovered segregation in the concrete underneath — gravel pockets created during the pour, which became water accumulation points
• Water was seeping into the apartment through these gravel pockets
We:
• Removed the stones to identify damaged concrete
• Located the segregation point and chipped it out with a hammer drill until reaching healthy concrete
• Applied two layers of Sika 412 (a concrete repair compound)
• Sealed the wall with two coats of Sika 107 (a cement-based waterproofing material)
• Reattached the cladding stones and anchored them to the wall according to Israeli standards
The result:
The apartment was saved, the leaks were eliminated, and everyone was satisfied — both the residents and the construction company.
