хидроизолация на покрив с посипка

https://postheaven.net/corrilpjhb/durability-evaluation-of-external-thermal-insulation-composite-methods-in-urban

Roofing system waterproofing with slurry includes using a cement-based waterproofing slurry to protect the roof from water seepage. The slurry is a mixture of concrete, sand, and additives that form a thick paste-like