Installing ceramic or porcelain tile is both an art and a science. Tile installers must know the composition of the tiles as well as how to lay them in place attractively. Besides the normal costs of labor and materials, a tile project's costs vary by the type of sub-flooring to be used as a foundation for the tile.
Three things can cause an EMI problem: A signal source creates some kind of noise, there is a transmission path for the noise, and/or there is a receiver sensitive enough to be distorted by the noise, as shown in Figure 1.
The cause of noise most commonly called p-static or precipitation static is obviously not from charged particles striking the antenna. While some of this might occur under some conditions, the overwhelming cause appears to be corona discharge from protruding points into space around the antennas or antenna structures.