Electromagnetic Waterproofing

Building Safety Journal (September 2003) reports on electro-osmotic demoisturizing technology, a method for protecting foundations from ground moisture with low-frequency radio waves. The method works with sub-grade concrete and masonry foundations. The electromagnetic waves neutralize electrical charges in the foundation material that allow capillary action to occur, thereby stopping water intrusion. According to the article, the system consumes about as much energy as a 100-watt light bulb, is minimally invasive, and is not limited by building size or use.