This site is a terrace, which status quo is made with waterproof membrane with slate. Our intervention was imperative due to leakage, which could not be stopped despite famous of all our hydro-insulation.
Measures taken by our company for waterproofing is - to make a socket on both sides of the terrace to a height of 40-45 cm. By further enhanced by linking with polyester canvas A-65 at all angles in addition to waterproofing bitum material that It is based on bitumen and implement excellent adhesion to old bituminous waterproofing as the fill.
Meshing with polyester cloth was made and reinforced at all overlaps and "joints" of the old hydro-insulation. We note that some drain on the terrace was made several times "patch" as evidenced seen on the last picture and still leak was not successfully stopped.
Upon completion of waterproofing with bitum several days after water tests did not report any leakage downstairs below the terrace, which for us was an indicator of the successful work done.