How to make a warm floor under porcelain stoneware with your own hands: Instructions + Video

How to make a warm floor under porcelain stoneware with your own hands: Instructions + Video Warm floor under porcelain stoneware + Photo and detailed installation instructions. When performing repairs, many significant questions may appear. Most often, they are not even related to how to perform certain work. For most people, choosing one of the existing technologies becomes a problem. So, many are interested in how to make a warm floor under porcelain stoneware with their own hands.

It is known to many that recently warm floors have become especially popular and there are a huge number of varieties on the modern market. For example, it can be electric, water or even infrared floor.

As for the electrical, there are several subspecies here. In this article, we will tell you all about the types of floor heating and help you decide which floor heating will be better.

General information

With regard to porcelain stoneware - it should be understood that the material is reliable and durable, ideal for decoration.

But one of its features is that thermal conductivity will reduce the scope of use in offices and residential buildings, since without the use of heating, the floor is very cold in winter. For this reason, warm floors are made. It remains to decide what technology to use for styling.

Water heat-insulated floor

Laying of material on a warm floor, which has a water circuit, is very popular nowadays. The bottom line is that multiple layers should be formed.

The heating system "cake" consists of the following components.

Components :

  • How to make a warm floor under porcelain stoneware with your own hands: Instructions + Video Screed to roughing.
  • Waterproofing layer.
  • Thermal insulation layer.
  • Reinforcement.

  • Water circuit.
  • Screed (finishing).
  • Finale - granite finishing.

Each layer requires a certain amount of space. For example, the largest area is occupied by the screed and thermal insulation in this heating cake.

By the way, the screed is an ideal accumulator of thermal energy. And yet, in the presence of a huge number of positive aspects of a warm floor under porcelain stoneware, there are some disadvantages.

For example, if your ceiling height is not too high, then laying a warm floor will not be possible and even more, this will imply a major overhaul. And if it happens that there is a leak in the heating circuit, then this will become a provoking moment, due to which serious consequences await you. Taking into account the fact that the top will be finished with porcelain stoneware, you will have to spend a lot of time and effort to fix a leak or any other problem hidden under the floor.

Electric insulated floor

If we are talking about an electric warm floor, then there are big differences. For example, the heating circuit will not be the same thickness as the water circuit. In addition, some types of floor heating can be installed on a screed, and some of them only under flooring.If we talk about what disadvantages this system has, then this is the use of a screed, which will significantly reduce the height of the room.

In those places where it is fundamentally important, such a disadvantage becomes the main one in the list of disadvantages.

Let's take a closer look at this issue, namely, how much the floors rise when arranging two completely different types of heating with electricity.

With a thickness of up to 5 cm

In this case, we are talking about the use of a special heating cable, which is laid in the screed. If we are talking about the advantages of using this system, then this is the ability to change the laying step. Thanks to this feature, you can easily set any heating power at your discretion for individual areas in the room.

With such a layout, the underfloor heating system can replace the standard one or become an additional source of heat.

To reduce heat losses, you can additionally lay a layer of thermal insulation and a reflective film under the porcelain stoneware. This will not only reduce energy costs, but will improve the quality of heating.

Such a system of warm electric floor under porcelain stoneware has some requirements for installation. If the thickness of the floor is more than 5 cm, then the consumption of electrical energy can significantly increase. In addition, heating will no longer be as effective.

If the screed is less than 3 cm thick, then you will get a thermal zebra, in which there will be an alternation of hot and cold areas of the floor. The screed must necessarily be flat, not have protruding sharp stones and air layers. Failure to do so may damage the warm-up cable and disrupt the entire system.

Important! In order to obtain even heating of the entire floor, the heating cable must be securely fastened in all areas. Due to this, in the case of pouring, the screed will not move.

With a thickness of 0. 3 cm

And this is one of the latest and most modern developments of floor heating systems. This is not a typo, but the truth - the heating mat is so thin that the heating cake can be only 3 mm in total! This is true for those apartments and houses where it is impossible to raise the floor level. Everything will look like this - for a start, a rough, even screed has been laid, on which the finishing material will be laid, i.e.

, porcelain stoneware. After that, the heating mat is placed on the floor and covered with trim on top. In this case, the most important thing will be the choice of glue for porcelain stoneware. In the end, it turns out that the heating mat will be in a layer of tile adhesive.

Please note that the heating mats are heating cables that we already know.

Only in this case they will be located on a self-adhesive mesh and laid at a certain distance. This will facilitate installation work.

Now let's talk about laying under porcelain stoneware, and in this case it is better to give preference to a two-core heating mat, which has a power of 145 W / m 2 and above. In this case, this will be more than enough to provide the room with the required temperature. Sometimes the power for 1 m 2 can be from 185 W.

This is true in the case when you are in doubt about the quality of the insulation for the selected room.

Infrared floor

Warm floor under porcelain stoneware using a film-type heater is also laid according to special rules.

  1. First create protection from moisture. To do this, it will be necessary to spread a film roll waterproofer on top of the heater system.
  2. The second step is to prevent localized mechanical stresses from occurring, which can cause the warm locking effect.

    To do this, plywood, magnesite or gypsum fiber board are laid on top of the system.

On top of the resulting sandwich made of materials in the form of external protection and a heating film, porcelain stoneware is installed.

Please note, that the least effort is required to create a dry warm floor without screed. To begin with, on a previously prepared leveling layer, we spread the mounting substrate, after that we place the components for placing the routes or create a rack system. At the end, there remains the laying of the cable / water system route, the installation of the scattering elements and the laying of the basic material, i.

e. porcelain stoneware.

Which is better?

So, after comparing some of the underfloor heating systems that are suitable for laying under porcelain stoneware, you should opt for one of them. At the moment, most people are choosing new devices, namely heating mats. By arranging such a floor, you can ensure the most pleasant indoor conditions.

In addition, if you choose heating mats, there will be much less preparatory work. In addition, the floor is laid in the tile adhesive itself.

And of course, you shouldn't write off infrared floor heating ahead of time, which is a winning option. This is an excellent option, which has only one drawback - a large "sandwich" of building materials, which you cannot do without, namely drywall or other sheet material, waterproofing, insulation and only after that porcelain stoneware.


So, after comparing all systems with each other, you can understand that the division and choice depends only on whether it is possible in your raise the screed and if so, how much.

After all, if we leave this condition aside, then each of the systems is good. In the end, they help create a pleasant microclimate inside an apartment or house. What's more, with proper installation and using thermal insulation material and reflective tape, you will get better results.We hope this article helped you decide on which system to use.