The current buildings have problems that affect the health of the occupants. Inside there are electromagnetic fields produced by the network cabling, microwave fields of the WI-FI, fields produced by terrestrial storms, fields produced by telephony antennas, fields created by active faults near the surface, radiation from soil, etc that the classical electrical materials of grounds are not able to eliminate. We propose placing plates in direct contact with the ground and under the foundation slabs or side conductive of the walls. These plates, which tend to have large surface area would be made based on Portland cement or concrete of aluminates with graphite which helps to dramatically increase the electrical conductivity of the plate and driving ground harmful loads and slow or prevent their entry to the building.