Dry floor screed with your own hands video. GVL technology floor screeds, installation and installation

Screed flooring is an indispensable condition for the preparation of flat floors. Dry floor screed with their own hands hides communication, creates a perfectly flat surface under the laying of the finishing flooring, ideally under the laminate flooring with their own hands. The usual process with the use of cement is very laborious, it takes a long time. It is difficult to produce to one person, and, in addition, to dry the cement, without cracking, for two weeks, the floors have to be well moistened daily. Laying the coating can be done only after 20 days. Website repair apartments with their own hands continues to delight their readers daily with new and good articles on repairing with photo materials, and in the end you will find a video example of the technology of installing the screed.

Dry floor screed with own hands in the apartment - introduction of

To reduce this time, to minimize the work, but to leave the screed as reliable, a new material was invented - a gypsum fiber sheet, or GVL.

This material is based on two long-known materials - a hybrid of a fibreboard( MDF) with a gypsum board( GKL).Prepare it by dry pressing from a loose cellulose with an astringent composition based on gypsum. It turns out a homogeneous, environmentally neutral building material of increased strength. Finished fiber fully meets the requirements of firefighters, doctors. GVL has certificates of hygiene, fire safety.

These elements, having a rectangular shape and one polished side, are recommended to create a dry screed when constructing floors, for cladding wooden walls. They perfectly match with any kind of flooring, reduce the risk of fire.

Gypsum fiber can be ordinary or moisture resistant, therefore, its scope is practically unlimited. Moreover, there are different sizes of sheets. More common ten-millimeter, the size of a meter and a half. Sometimes on sale it is possible to meet twelve-millimeter blanks in width in total one meter twenty. The most convenient - ready-made panels with rebate and groove, glued in the factory way, as shown in the photo. Such panels significantly accelerate the process of dry flooring by the hands.

GVL almost does not conduct heat, the material is always pleasantly warm to the touch. Moreover, the fiber at high humidity draws in itself excess damp from the room, and then, when the room becomes excessively dry, it secrete it.

Technical features of gypsum fiber, its light weight allow for the creation of floor screed not to make technological interruptions, which greatly shortens the construction time. Very light, GVL sheets do not increase pressure on load-bearing structures, as conventional cement does. Fiber - an excellent heat - soundproofing. Since light sheets are perfectly cutable, they can be used in rooms of irregular or complex shape. It is indispensable in the creation of rounded ceilings, curved partitions.

Tests carried out by both creators and customers showed that it is very easy to drive nails into walls covered with such material, but it is very difficult to get them out.

GVL technology creates an excellent dry screed, but in order for the floors to meet all the strength requirements, they were reliable, they must be mounted strictly observing the technology.

Device for dry floor screed

The algorithm of work is as follows:

• From the old floor, the linoleum, tile, any other covering is removed. Garbage is removed from the exposed concrete overlap, dust is swept away. Possible old cracks, carefully cemented, given that the higher the figure on the solution grade, the more reliable it is. The joints between the walls and the floor are also thoroughly grounded. Instead of cement, you can use a ready masonry or installation dry mix.

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• On the perimeter of the room is laid the edge band cut from the mineral wool( the photo shows the laying of the tape, after the film is covered).Its optimal thickness / width is 10x10cm, and the task is to absorb noise, do not let the floor cover "walk", do not allow cracks.

• As overlappings are sometimes excessively wet, and the insulation from moisture gets spoiled, a layer of waterproof( polyethylene) film is laid on the overlap. If its width is not enough, that you will have to carefully monitor the fact that the panels are lapped. Otherwise, moisture can wet the heater, it will lose its qualities.

The technology of installing a dry screed on the floor with your own hands

The turn of the heater came. Dry mix for floor screeding can be different, for example bulk. Expanded clay, sand, pumice, fine crushed stone, blast furnace slag is simply poured on polyethylene film, then well leveled. Usually, pre-set beacons are used to create the horizontal. The video example below shows how the dry mix is ​​leveled. Bulk compositions are very cheap, but to create more or less good thermal insulation they need to be poured very thick - they do not keep heat.

Expanded polystyrene insulation is much more reliable to keep heat, absolutely not afraid of moisture, no mice, no fungus, no time. They are worth more than bulk, but more practical than them.

Mineral or fibrous heaters have very similar properties: glass wool, basalt wool. They are made from molten glass or natural minerals, sometimes poisonous formaldehyde is added to them. Such cotton wool for residential buildings can not be used.

Styrofoam or fiber insulation is cut into the dimensions of the room, laid on top of a waterproof film. It is necessary to lay several layers, otherwise the insulation will be very fragile, unstable.

Installation of a dry screed GVL

Now it is possible to do by own hands a dry screed of gypsum fiber, the installation is simple. If the builders used bulk heaters, the laying of pre-strips, taking into account the room and the edge band, of sheets of GVL starts from the door. If the heater is different, work better from the window.

The first layer slabs are carefully smeared with special glue, as shown in the photo from the left and in the video below, then the second layer of GWL is already laid on top of it, so that the layers adhere tightly to each other. For greater reliability, the sheets are fixed together with self-tapping screws with an anti-corrosion coating. Then everything is removed from the floor: the gaps, the marks from the fasteners are covered with putty, the surpluses of the edge band are cut off. For greater reliability in rooms where it is excessively wet, on top of the slabs, a waterproofing tape can be laid at the joints of the floor with the walls, and then on the GVL make insulation from any bituminous composition.

That's the end of the dry floor screed video below shows everything in an accelerated state. With certain skills, installation will take no more than one day for each room, which does not go to any comparison with the installation of a "wet" screed. GVL technology of dry floor screed will significantly reduce the time until the final coating of the floors. This option is certainly not suitable if you want to make an installation of an electric warm floor or install a water-heated floor with your own hands.

Fast dry floor screed video lesson

Video mounting instruction from Knauf - from the beginning of the manufacture, to installation.