Moisture and dampness are integral satellites of any bathroom, they contribute to the destruction of unprotected surfaces, penetrating under the facing materials. If the walls or the floor have even minor cracks, the water will sooner or later leak to the neighbors. In order to avoid this, it is necessary to waterproof the bathroom, which involves eliminating microcracks and protecting the surface from harmful effects.
Scheme of waterproofing concrete floor in the bathroom.
Preparation and application technology
Waterproofing can be done with the use of coating materials. The first variety, as a rule, is based on oxidized bitumen, which includes all kinds of fillers, as well as a solvent of organic origin. Fillers can be: rubber crumb, plasticizer or latex. These components are necessary for a more impressive elasticity of the coating.
Scheme of waterproofing the bathroom.
Bitumen-rubber and bitumen-polymer compositions have excellent adhesion characteristics to surfaces, but their protective properties are manifested only if a reinforcing fiber screed is installed in parallel.
Waterproofing can be made and with the help of cement-polymer compounds, which have mineral filler, cement and water. In terms of consistency, this mixture resembles liquid clay, and the flow rate is approximately 3 kg per 1 m2, which is true if the application is made in 2 layers.
There are also okleechnye materials for carrying out insulation work, they have the form of rolls. Before starting work, it is necessary to choose exactly this kind of overlap insulation, with which the master will most conveniently work. For example, self-adhesive insulation is easy to lay down, and work with it quickly enough, without the need for additional devices. And the deposited materials are laid by means of a gas burner.
Roll materials are much easier to use, but experts recommend the use of coating materials, and there are several reasons for this. The first is that the rolls are made up of bitumen, which has an unpleasant smell. In addition, before laying the roll materials, you will have to carefully level the surface, which must also be perfectly dry. Beforehand, the surface must be treated with a bituminous primer. The gluing must be carried out with special care, since even a slight inaccuracy can reduce the work to nothing. However, bonding materials are more economical. Use this coating after the application can be almost immediately.
Diagram of the device for waterproofing the floor in the corners of the room.
Before the waterproofing of the joints of the bath, it is necessary to prepare the surface, which involves the removal of debris and dedusting. If the floor has significant unevenness, then you should fill the screed. In the presence of minor differences, limited to 2 mm, it is possible to treat the surface with a primer. If it is supposed to lay a screed based on cement and sand or gypsum and sand, then it is necessary to distribute the mixture with strips, the width of which is equivalent to 2-3 m, to ensure evenness, beacons should be used. In the presence of concrete, plaster or cement coating, the surface must be moistened with water, distributing the liquid with a spray gun. This is necessary because such bases have a porous structure, for the same purpose you can use a sponge. This procedure will prevent the premature drying of the composition for waterproofing the bathroom. After 1.5-2 hours after primer application, it is possible to start the flooring of the roll insulation or the application of a solution for insulation.
Before the waterproofing of the bathroom, all joints must be protected with a reinforcing-sealing tape, it must be glued to the mating of walls and flooring, sanitary devices and the floor surface, etc.
The process of waterproofing the bathroom should be accompanied by the processing of waterproofing materials not only of the floor, but also of the lower part of the walls.
In addition, the master should carry out the puttying of the joints of the tile with a silicone-based sealant, which must be done at the stage of the cladding.
Waterproofing when applying a warm water floor in the bathroom.
Waterproofing, which involves the use of self-adhesive materials, is carried out almost the same technology that is used for the laying of ordinary linoleum. To begin with, it is necessary to measure the area to be insulated, in order to cut the material to size. The wrong side should be removed from the protective film, and after the material is fixed to the base.
In order for the waterproofing process of the bathroom to be effective, it is necessary to walk through a heavy roller for the preparation. The laying instruction indicates the need for the next step to produce a sheet of overlapping material, the width of the last of which is 4-5 cm. The layer must be 15-20 cm thick on the wall.
A similar stowage technique is also used in the case of welded materials, but certain requirements must be met.
The process of waterproofing the bathroom is carried out in parallel with unwinding the roll during laying, while the adhesion of the layer to the base can be achieved with a gas burner. Its impact will be directed to the bitumen layer, which will facilitate reliable fixation.
After the process of waterproofing the bathroom, you can immediately begin installing the concrete screed, which will act as the base for the flooring of the finish coat.
Area of application of liquid waterproofing.
In order to fully protect the room, you should also make the isolation of the bath yourself. To do this, it is necessary to use a sealant based on silicone, which is applied to the mating of the pipe with a sewage tap, the sealant must also be applied to the seam that is between the bathroom and the walls. The seams thus protected must be renewed by re-applying the sealant after one year.
To carry out work on the insulation of the bathroom with roll materials, some materials and tools should be prepared:
- heavy roller;
- roll material;
- reinforcing-sealing tape.
If you decide to use one of the coating materials, then the composition must be applied with a roller or brush, you can replace these tools with a spatula.
If necessary, the process of waterproofing the bathroom, which has a very large area, the application of the mixture can be carried out by an automatic spraying device, but then it is necessary to use the rental equipment, which will make the work more expensive.
The process of waterproofing the bathroom with cement-polymer mastic can allow to bring the floor level to the desired height, and after the work is achieved, the evenness of the base. This waterproofing eliminates the need for further laying of the screed. But if the insulation is carried out using bituminous mastic, which is equipped with a thin enough layer, not exceeding 2 mm, then there is still a need for a screed.
The coating material must be sprayed, avoiding gaps, special attention should be given to the joints and the weld area that connects the bathtub and the tile.
Carrying out such work can be done independently, or by contacting a specialist, then the area of the joints of the bathtub and will not be dangerous even with a rush.