Todays preferred method of waterproofing throughout the industry is actually a water management solution - performed by the installation of an interior “pressure relief system”. Originally invented in 1859 by Mr. Henry French, the original “French Drain” ( the modern day pressure relief system) was used for the drainage of flood water away from precious farm land.
Simply put – a properly designed and installed pressure relief system is a series of specially engineered channels that are placed in gravel packed trenches below the basement floor and next to the footing (not on top of the footing- like some other cheaper imitators do).
Placing the channels next to the footer requires more work and material but is much more effective because it will also eliminate ground water from rising up and coming through any cracks in the floor. Channels placed “on the footer will only captured water pressing in from the sides. Cheaper installations of this type have a very high rate of failure.