Until recently, most people, especially those who rarely face repairs in their lives, knew only one type of plaster. Normal, it's wet. Such material is used everywhere, before it was simply indispensable for whitewashing ceilings and walls. The composition is a complex solution using dry mixes for plaster with the addition of lime, cement, glue or gypsum and water. Unfortunately, this product has its tangible drawbacks - it can not be applied to some surfaces, for example, walls made of brick.
Dry plaster comes to the rescue here. In fact, this is a completely new, simple and very convenient material, which has come to replace your brother. No wonder dry plaster for such a short time has gained wide popularity. The latter is to a large extent due to usability, although this is not its only advantage. Currently, dry decorative plaster is considered one of the most environmentally friendly and clean facing materials, which has proven itself, including as a means for the repair of residential premises.
In addition to proven non-toxicity, such plaster has good insulating properties: it muffles sound and retains heat. From the point of view of fire safety, it is completely non-flammable, and also has no smell. The latter should appeal to sensitive people who do not tolerate the smells of paints, varnishes and all kinds of chemical compounds poorly or not at all. Another interesting feature of dry plaster is the ability to absorb and give off moisture, depending on its content in the atmosphere. Therefore, you can often hear that such plaster "breathes".
This material does not require the use of wet mixtures and is the best suited for ceilings. In this case, it is permissible to conduct absolutely any communication between the surface and the facing sheets.
Dry plaster - what is it?
Another, much more dear and familiar to many people, the name of such plaster is drywall. It is usually sold in sheets of two to three meters long and slightly more than a meter wide. The thickness of these sheets is small - only about ten millimeters, which makes this decorative material very light. The base of the sheets is gypsum, which is coated with hard cardboard on the outside for strength. Economic, provided that it is used correctly, dry stucco also gives excellent results.
But if you intend to use this decorative material in the repair of an apartment, you should definitely familiarize yourself with some of its features. First of all, dry plaster is not suitable for use in very humid rooms. This is due to the structure of drywall: its surface may get wet with time and lose its original presentable appearance. We are talking here about the constant exposure to moisture, while short-term strong interference will not create.
Too high temperatures will also negatively affect the condition of the material. Therefore, it is better not to use drywall in rooms where the temperature can reach 45 degrees. Such an excess of the regime will dry the plaster sheets too much, making them fragile and short-lived. True, in most apartments the air does not heat up to such marks.
Dry plaster application
When attaching to concrete ceilings, most often you have to make a wooden frame. It is nailed with special nails - dowels. Subsequently, drywall sheets are attached to the racks of this frame. It is important that the width of such battens at the joints of the plaster should be more than seven to seven and a half centimeters. This will give additional reliability to the entire structure. Between the sheets should leave a small distance (half a centimeter) for finishing the seams.
But if there is no need for additional thermal insulation, you can save the height of the room by attaching dry plaster sheets directly to the ceiling. Here you have to use a special adhesive. It is made from ordinary building gypsum and two percent bone glue. Mastic is applied to the sheet, especially carefully lubricating the edges, and pressed to the ceiling. In this case, you should also leave the distance between the sheets - for seams.