On most floors, condensation is the main reason for sweating, especially in hot climates. When warm, humid outdoor air comes into contact with cold concrete, the air cools quickly and condenses on the surface, causing moisture. The tile floor and the space beneath it are colder than the air above it. When using a propane heater, it not only heats the air but also introduces moisture by raising the humidity in the air.
Therefore, it produces condensation on the surface of the tile. The thin layer of moisture that appears on the surface is due to the phenomenon of condensation. When air with water vapors enters your home through windows, doors, or vents and comes into contact with cold tile floors, this meeting will change the state of the vapors from water to liquid. This phenomenon will occur particularly because of the high water content in the air that fills the house.
For the most part, condensation is the reason the floor is wet. When it's hot outside and that heat comes into contact with the colder air inside. It will cause the concrete slab to sweat and, in turn, the condensation will moisten the tiles above it. The floor is a dark brown waterproof type that was placed when the house was built in the 1950s and only occurs when it rains, regardless of the time of year it is in, it occurs along the two outer walls, since it is one end of the terrace.
The wonderful and durable tiles with stunning designs that cover the floors, walls and other areas of the house present a beautiful image. To prevent tile floors from becoming damp and becoming a breeding ground for mold and mildew, there are certain preventive measures that can be taken. Applying an impermeable membrane to the substrate and then installing the tiles on it could work as long as the sand bed between the tile and the membrane is not too thick. I have a house that I built about 2 years ago that is equipped on a screened porch with tile floors.
Therefore, in order to prevent floors from getting wet, it is necessary to monitor the water content of the air inside the house. If you are on the ground floor of your house and have damp floors, it may be due to water coming in from outside. Then, moisture migrates to the surface of the tile, where it evaporates and precipitates the residual calcium minerals that moisture accumulated on the way to the surface of the tile. There are a number of reasons and activities responsible for increasing the water content of air, which, when deposited on cold tile floors, causes condensation.
If the relative humidity atmosphere were so high inside that it caused condensation, this would occur throughout the house where the tile is installed on a cold concrete slab. In any case, if that's the problem, the only solution is to place French drains that surround the perimeter of the house to allow water from the subfloor to drain, or you can remove the existing floor and install an epoxy vapor barrier and install your tile on top of it. About 1-2 years later, the tiles darkened and looked dirty and felt rough to the touch, they are no longer smooth, and I have noticed that there is often condensation on the tiles at certain times of the year, usually in spring and fall.