The vapor barrier of the ceiling is now being done more and more often during repairs. It can be performed both with the help of old methods, time-tested, and with the use of modern materials.
For example, you have a moist and damp room, although warm enough. This can be a heated basement in a private household or a bathhouse. For such rooms, very often a characteristic moment is the formation of steam, that is, warm air, which contains droplets of water. He has nowhere to go, so he goes through the ceiling and walls. And due to the fact that steam is formed constantly, there is a slow destruction of these surfaces. This is the cause of very unpleasant consequences, even shrinkage of the house is likely. It turns out that the vapor barrier of the ceiling is important, since it allows to avoid the penetration of the indicated surfaces of the steam, which is the cause of further damage.
The oldest and most proven method is the use of polyethylene, which does not allow absolutely no vapor to pass through. A good option is non-perforated polyethylene, which does not allow steam and air to pass through. However, he has a minus - it is difficult to be in such a room. The vapor barrier of the ceiling can be carried out using modern materials. For these purposes, you can use special mastics. If they are applied to the ceiling, they will conduct heat and retain moisture, while the surfaces will not collapse. The ceiling must be treated with such mastic before the finish is done. If we talk about how to put vapor barrier on the ceiling, it is worth noting that there is a more modern way, which is based on the use of a special surface with a pile. The villi pass heat well through them, holding up wet droplets. Such material is often used for vapor barrier of concrete ceilings, as well as mastics.
The vapor barrier of the ceiling made of wood can also be made using special mastic. This building material has a huge advantage - it does not threaten ignition. In the modern construction market, in addition to mastics, you can find a wide range of various vapor barrier materials: penofol, isospan, alukraft, armofol and others. All these materials are quite convenient in terms of installation, reliable and able to last a very long time. If we talk about how to put vapor barrier on the ceiling, it is worth noting that all these types are laid on the inside of the ceilings. They need to be fixed as tightly as possible, with the side on which there is a polymer coating, inside the room to be finished. Greater reliability of the entire structure can be imparted by sealing the joints. Between the cladding panels and vapor insulating materials a small gap should be left, about five centimeters. If you have sufficient skills, you can do everything yourself.