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.
Airborne noises are the noises from outside (traffic, voices, etc.) and also include sounds from the TV, music and other noise producers inside. Impact noises include footsteps and vibrations from large appliances such as your washer and dryer. Insulation reduces both airborne and impact noises.