Your home is constantly subject to unwanted ingression of water, which not only deteriorates the surfaces, but also penetrates into the structures, damaging both your and the adjoining property.

Another threat, commonly overlooked by most people, is the effect that moisture has on our health. Dampness in a room ensures perfect conditions for the appearance and development of bacteria and mould, whose spores spread in the area, representing a danger to health. While spores are quite undemanding and can adapt and multiply everywhere inside and outside a building, their concentration increases a thousand times in damp rooms. A high concentration of spores is harmful for eyes, irritant for respiratory tact and can lead to pneumonia. Besides, high spore concentrations provoke a distinct and easily recognisable smell in the room. Seeking to prevent spores posing threat to your health, you should properly waterproof damp rooms. Zoning a damp room
In order to save on work and materials costs, damp rooms (bathrooms, shower-rooms, saunas and their halls, laundries) should be divided into several zones (pict.1). A distinction should be made between two types of zones – wet and damp, depending on the degree of water exposure. Wet zones, e.g. showers, are those that are directly exposed to water.
Wet areas have to be thoroughly waterproofed (or “tanked”). When designing a room, see to it that moisture-sensitive structures, such as doors and windows, are located at the furthest possible distance from water.
The entire floor surface and the area that is 10 cm above the floor are considered to be a wet zone area.
Wall zoning depends upon the arrangement of fixtures in the room. Walls include wet and damp zones as well.
Waterproofing procedure
It is vitally important to properly prepare the surface before you start decorating. Double-check to see that it is dry, smooth, clean and has no loose parts. If the surface is rough and uneven, apply levelling composites designed for wet rooms to level it.
All surfaces need to be primed with an adhesive primer. Then, apply waterproofing compound on to potentially wet areas to ensure long-lasting protection of the structures against moisture.
Make sure you seal joints between different kinds of materials and structures, wall corners, wall and floor joints, as well as pipe penetrations first. For reinforcement, a special reinforcing strip is used. It is embedded in the newly applied waterproofing coat and then covered with another coat. Wet areas should be entirely covered with waterproofing material.
Just as walls, the floor has to be primed first and then covered with a water-resistant coat.
Once the surface has dried and hardened, you may start the decoration. Decorating materials for wet rooms must be water resistant and have no defects. In most cases, for decoration of bathrooms, pools, and other wet areas, ceramic tiles are used as they can adhere directly to waterproofing materials.