Kamienny Dywan - Hydroizolacja Poliuretanowa (2 warstwa) | Szkolenie cz. 3

In this part of the training, we demonstrate the second stage of stone carpet installation – polyurethane waterproofing (the second layer). This is a crucial step, responsible for the tightness and durability of the entire system – mistakes here can ruin the entire project. 📌 This is part 3 of the complete stone carpet training course. ➡ Part 1: Substrate preparation (sanding and priming) ➡ Part 2: First layer of waterproofing ➡ Part 4: Battening ➡ Part 5: Vertical surfaces ➡ Part 6: Horizontal surfaces 👉 If you're building a terrace, balcony, or stairs – waterproofing is a fundamental step you can't skip. 🔔 Subscribe to the channel for more practical knowledge about resin flooring and balcony systems.