How is the waterproofing of a concrete foundation
Galvanized steel sheets, roofing material: examples of waterproofing materials that use to protect the foundation from wastewater. You need to do this: make a groove around the foundation, put a clay layer or steel on the bottom, and then they pour small crushed stone so that it covers the entire surface. And, as we see, it turned out a certain shell around our foundation through which moisture goes into the ground.
Important: when wooden logs are used as a foundation pile, then they need to be protected from moisture. To do this, they are wrapped in roofing material, sprinkled with a layer of crushed stone or poured with a solution.