Полиуретанова хидроизолация
https://canvas.instructure.com/eportfolios/2906201/brooksienm741/The_Most_Innovative_Things_Happening_With______
Waterproofing is the process of producing an object or construction water-resistant or drinking water-resistant, so it stays comparatively unaffected by h2o or resisting the ingress of h2o underneath specified