вътрешна топлоизолация

https://zenwriting.net/benjinhedd/what-are-waterproofing-membranes-the-categories-and-applications-it-is-a

What's Basement Waterproofing And How Does It Work? Concrete and shotcrete are porous materials, so once the constructing has settled, it can crack over time or leak from water-exerting strain on the below-grade