How to make the foundations waterproof ? There are several systems for sealing the foundations, and hence for useable products. The level of performance is determined according to: • the nature of the buried premises, • masonry, • the soil and its moisture content. Two principles are short: • on sandy, rocky ground … The water flows naturally and drainage is not essential. We can content ourselves with waterproofing the foundations. • On the other hand, clayey or loamy soils form an impermeable barrier that holds water near the surface. To evacuate them, it is necessary to associate a drainage system with the waterproofing of the walls.
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