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.
At its core, moisture problems in the home that can cause your windows to discolor are caused by high relative humidity inside the home. Relative humidity is a result of the amount of moisture or water vapor produced inside the home, the relative humidity outside and the rate at which your home can replace damp air inside with dry fresh air (the air exchange rate).