The considerable number of masters believe that to fix such material as gypsum cardboard, does not make any complexity. But it is worth knowing about some certain subtleties. Use will add them surface high rates of fortress and durability that it completely will prevent subsequently clinking.
In the course of gypsum cardboard fastening the choice of qualitative hardware and certain tools takes the important place. As a rule, special self-tapping screws which twist screw-drivers, drill or the screw driver are used. Very important before works competently to carry out the choice of fixtures for gypsum cardboard. Here certain rules from which it is possible to distinguish two main will help. Length of hardware has to be about 10 mm more than profile thickness. Speaking in other words if work is performed with material of the parameter of 12 mm, the self-tapping screw will be required to take not less than 20-25 mm long. If mounting of two layers of material is carried out, fixture is chosen in 35 mm. At the answer to question how to use self-tapping screws during the work with gypsum cardboard, it is possible to note that it is very important to select such devices which will correspond to material.
In the course of fastening it is very important not to overdo and not to overwind the self-tapping screw as there can be risk of rupture of layer of gipsokraton. It can cause not dense connection of sheets, therefore not achieve rigidity of framework, and, it is the main function of any design. Not full twisting is also extremely undesirable as in the course of puttying it is possible to find hillocks. If to smooth out these errors piece of abrasive paper, all this through some time will lead to formation of red spots. The most optimal variant will be to twirl self-tapping screws on depth of 1 mm from upper part of surface of material to fixture. Such distance will give opportunity to keep integrity of gypsum cardboard and also layers will ideally be attracted to each other.
In situation when it is required to fix several sheets of material at once, the step of fixtures in the course of connection of the first layer can be allowed in 60 or 70 cm, when fastening the latest layer, it has to be equal to 30-40 cm. In case sheets of material stand nearby, hardware is twisted with small shift, the distance at the same time is observed in 5-7 cm. It is important to pay attention to this parameter from the edge of material, here it is worth keeping 10 mm, not closer. In the course of mounting of gypsum cardboard it is important to watch that its sheets have been located strictly in chessboard order carefully. It will give to all design in general of optimum rigidity and also probability emergence of destructive cracks will be reduced. If to follow all above-mentioned advice, it is possible not to doubt quality of the received design.