The use of drywall in construction and repair work has long become the norm. If it can be applied, then it needs to be applied. There are situations when you need a fire-resistant material, and the usual gypsum for such purposes is not suitable. However, the solution has long been found and it is fire-resistant drywall. However, not everyone still trusts in this building material, because they do not know how convenient the CLUTE is in the installation and how frightened it is to the fire.
GKLO stands for gypsum plasterboard fireproof .
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Among the shortcomings can be noted the high cost of GKLO in comparison with ordinary wall sheets. Also, this material can not be used in rooms with high humidity. Although recently appeared drywall green with pink markings. It is fire resistant and can be used in rooms with high humidity.
Pink color of cardboard is a sign of fireproof sheet.
Fireproof drywall is primarily designed to resist fire, so that people have time to put it out or escape to a safe place. However, its resistance to mechanical stress leaves much to be desired. There will be scratches and dents from impacts on the sheet. With strong blows sheet simply breaks.
If you plan to use light wallpaper as a finish, you will have to try very hard to block the pink color of the material.
There are no other shortcomings, for the rest of the fire-resistant drywall is the same or better than GCR. But some characteristics of refractory drywall give it a number of positive properties.
According to the characteristics of the refractory sheet it can be distinguished from the usual GCR. The first thing you need to pay attention to the color, because pink is the hallmark of fire-resistant drywall. At the same time, the color of a regular sheet is gray, and a moisture-resistant sheet is green. Outside, the same cardboard with additional impregnation is used, but the gypsum inside is reinforced with reinforcing fiberglass.
Turning on the logic, it can be understood that the gypsum does not burn and the board needs protection. However, the integrity of drywall in case of fire is also important. If an ordinary core collapses after burning out of the cardboard, then the GKLO, due to reinforcing additives, will have a hollow core much longer .
Standard fireproof plasterboard has the following characteristics:
Buying non-combustible drywall you need to make sure that he is. To do this, you need to take from the seller a fire safety certificate for the purchased material. The documentation must indicate the flammability class G1, flammability B3, toxicity T1 and smoke formation D1.
Choosing GKLO you need to pay attention to the fact that the thickness of the sheet was in the range of 12.5-15 mm. Other sizes of fire-resistant drywall are the same as in conventional plasterboard.
It is hardly worth buying heat-resistant drywall, the characteristics of which do not speak of its fire resistance.
At high temperatures, the refractory drywall feels normal, and problems can begin only in the case of an open flame. It is clear that the longer the material resists fire, the better. However, the shell of cardboard will still burn, and the core of plaster will still crack. But it happens much slower than in the case of wall plasterboard.
GKLO has a fire resistance limit of 45-50 minutes, which we have already mentioned. Different manufacturers of this figure may vary, which also affects the cost of building material. After the expiration of this time sheet will collapse, although it all depends on the intensity of the fire. The drywall class of combustion is G1, which means that it is classified as non-combustible materials that do not sustain combustion and do not spread fire.
For all these 45 minutes, a non-combustible hl will retain its carrying capacity, integrity and will not allow the fire to pass to the other side (in case a partition was made of it).
It is clear that when leveling the walls in a regular room, no one will use fireproof plasterboard, not to mention its use for the ceiling. Nevertheless, there are a number of situations in which fire protection by drywall is very relevant.
Also, this material can be used to create partitions in which power cables will be laid.
GKLO is often used to create fireplaces
When you choose fireproof for the GCR, its characteristics play an important role. In matters of installation, an especially important point is the presence of additional fibers in the cast that make the sheet core more resistant to fire. As a result, screwing screws into such material becomes more difficult, as well as cutting it. But it does not slow down the work.
For greater stability of the structure in the event of a fire, it is possible to stack the HGPS in two layers, as well as to take a smaller step between the profiles.
In no case do not need to mount fire-resistant drywall on a wooden crate. This building material is used for fear of fire, so do not use wood, which burns very well. It is better to apply proven metal profiles. In all other respects, there are no significant differences.
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