Choosing the right grout for underfloor heating How and with what to wipe the seams between the tiles - masters recommend the composition of cement mixtures depending on the purpose

It is difficult to imagine a residential building, apartment or industrial facility where tiles would not be used in decoration. But the cladding process will not have a complete look without grouting the joints between the tiles. Properly executed, it can not only give an outwardly attractive appearance, but also hide laying flaws, ensure safe and long-term operation of tiled surfaces.

Types of grout for tiles and their features

The most important thing when choosing a grout is to decide what type it will be.

Cement grouts

The most common and familiar to our consumer cement grouts.

Types of cement grout:

  1. These are dry mixes that need to be diluted with water or latex. After dilution, they become similar in consistency to putty. These grouts are especially recommended for work on a small area or if phased jointing is planned, since only the required part of the mixture can be diluted, and the rest can be stored for a long time.
  2. Ready to use. The cost of such grouts is much higher, and the shelf life after opening the package is short. It is better not to purchase a large volume if you can not work out everything at once.

The composition of cement mixtures depending on the purpose

For wide seams:

  • cement;
  • plasticizer;
  • pigment;
  • auxiliary components;
  • sand.

For narrow joints, the composition is similar, but without sand.

They are affordable, easy to use, strong enough, but unstable to dirt.

Epoxy grouts

A newer epoxy grout for our market.

Compound:

  • hardener;
  • basic composition (modified resins and quartz sand as a filler).

It is produced almost ready for use, it does not need to be diluted with water, but simply mix the main composition and hardener.

Advantages:

  • has high strength and durability in subsequent operation;
  • grout does not change color and decorative properties;
  • for cleaning, you can use detergents that contain chemical components;
  • resistant to mechanical damage, dirt, fungus and mold, not exposed to moisture and various temperature conditions.

The price of epoxy fugues may depend not only on the manufacturer, but also on the color. Also, when working with it, it is important to follow basic safety rules.

The composition contains caustic chemical elements, in case of contact with the skin, the mixture must be quickly washed off under running water).

How to choose grout for tiles?

The choice of grout must be approached carefully, since the tightness and hygiene of the room depends on it. It is important to take into account all their advantages, disadvantages and scope.

  1. Grouts are presented in a wide price range. The most affordable are cement (with and without sand), and the more expensive ones are based on epoxy resins and grout with the addition of latex, on which you then need to apply a layer of special varnish.
  2. Please note that if the tile joints are not more than 4 mm, then it is recommended to use cement grout that does not contain sand, and if more - with sand.
  3. The disadvantage of the fugue, in which sand is present, is that it should not be used when working with glossy and other surfaces that are not resistant to mechanical damage. As for the grout itself, it is also exposed to water and cleaning products.
  4. It is easier for a non-professional to work with cement grout, it is more versatile.
  5. Fugue based on epoxy resin is used in rooms with high humidity (bathroom, swimming pool, etc.).
  6. A clear advantage of epoxy grout is that, due to its composition, it makes tile joints indifferent to chemical and physical influences, and is resistant to the formation of fungus and mold.
  7. Epoxy fugue, unlike cement, has a wide range of colors and, what is very important, its original color will remain unchanged for 50 years.
  8. Epoxy-based grout is a rather viscous material, it is recommended for use on joints larger than 5 mm. Also, the composition hardens quite quickly, which makes the process of removing it from the tile very laborious. Given the properties of the grout, it is better to work with experienced professionals.

We rub the seams of the tiles. Instruction

The use of grouts is possible only after the tile "sits down". In this case, the seams will not crack over time, so it is better to wait a few days (48 hours is enough).

  1. Prepare everything you need for jointing: spatula, tile joint knife, gloves, foam rubber sponge, rags, pliers, respirator (preferably), grout and water (if required).
  2. We take out the crosses using pliers. Remove excess tile adhesive (2 mm deep). If the tile on the floor is rubbed, it is better to vacuum it so that the glue particles do not mix with the fugue.
  3. Ready to grout. We carry out the work by carefully reading the instructions. If the mixture is cement, then water is first poured into the container, then dry grout is poured out, in no case vice versa (lumps may form), if epoxy, we mix the composition with the hardener. Gently and thoroughly interfere so that the color and the mass itself become homogeneous. Depending on the width of the joint and the porosity of the tile, the density of the mortar may vary. The wider the seam and the less porous tile, the thicker. Please note that it is impossible to add water to dilute an already prepared fugue, so prepare the solution in batches.
  4. jointing. Before use, the seams are treated with water (you can wipe or use a sprayer). We collect grout with a spatula (if you bring it into the mass at an angle of 30 °, the amount will be optimal). Further, starting from the top, we fill it carefully, drawing perpendicular to the seam from left to right, while holding the spatula at an angle of 15 ° to 30 °. The seams in the corners of the tiles must be filled carefully, so we press the fugue a little. Do not forget to remove the excess immediately, then they will harden and it will be much more difficult to do this. Stir the solution from time to time to avoid skin formation.
  5. Sewing the seams. Having processed 5-10 seams (depending on the size of the tile), we draw along them with a rubber spatula, slightly pressing. If cracks appear in the process, the grout either has not had time to harden, or it is thicker than required. In this case, you need to wet the sponge and run it along the seam, and then repeat the process again.
  6. The last step is tidying up. First, wipe the tiles from dust and grout residues with a damp cloth, and then with a dry one. When the grout has completely hardened, carefully wash the tiles with the use of cleaning products. Remember, you can’t flush the grout into the sewer - this will provoke a blockage.

Video: correct grouting between tiles

Tile grout colors

The correctness of this decision depends on how beautiful the tile will look. Color can both emphasize and hide the shortcomings made during the lining. Color options may be different, it all depends on individual requirements.

  1. The project provides for a canvas in a single color scheme. It is worth stopping at a grout that matches the color of the tile. This option can also help hide imperfections in tiling.
  2. It is planned to play on the contrast. In this case, it is better to select the grout along with the tile, and not after the cladding is completed. If the interior is not black and white, for the right choice, you may need to consult a specialist. You should not stop at this option if the seams are not even enough - this will only emphasize the defects.
  3. Classic variant. The grout should be several shades lighter than the tile.
  4. The tile panel should stand out. To make it look brighter, the seams should be made in a darker tone. In this case, the contours of the tiles will be clearly defined, and the texture may be lost.

White grout is contraindicated for floor tiles; it will look dirty after a short period of time. It is better to stay on the same color color as the tile or with a couple of tones difference.

So, now you can choose the grout based on your own preferences and financial capabilities. They are presented in several forms, and it’s not worth talking about a wide range of colors. Properly selected grout will ensure cleanliness and safety in the room (fungi and mold cannot harm health), comfort and coziness, and will help make the interior design special and unique. Following the instructions above, you can easily cope with the choice, and you will also be able to carry out jointing work yourself.

Grout and grout mixes are building materials designed to bring facing work to perfection. They perform both aesthetic and practical functions.

Varieties of grout compositions

Modern grout for joints can have a cement and epoxy base. Products of the first group are distinguished by their lower cost, which explains their wide popularity. When using these materials, you can not save - the seams should be filled in excess so that no cracks and gaps remain.

If desired, a cement-based grout mixture can be used with one's own hands, without recourse to specialists. To do this, you need to prepare a solution of the required consistency, and the work itself should be done with glasses and a respirator that will protect the body from harmful volatile compounds.

Epoxy materials are sold ready-to-use. They are highly flexible and therefore easy to apply. The compositions will be a great solution for beginners to use. Their main disadvantage is their high cost compared to cement-based counterparts.

The choice of grout for difficult operating conditions

Particular care should be taken to choose the grout for filling the joints, which will fit in the bathroom. This is a special room that is faced with sudden temperature changes, as well as high humidity. The best solution would be a grout containing epoxy resins. This material does not absorb moisture and is highly adhesive. Therefore, it can be used for tiling, which is laid on the walls and bottom of pools, for finishing facades and cladding the interiors of public spaces.

Epoxy grouts have a high curing speed, so you need to work with them quickly. It is noteworthy that the material retains its original color for decades. It is sold ready to use.

How to choose grout

There are recommendations from experts who will help you choose the best grouting agent. For example, for a floor, it is preferable to choose a material with a darker shade than that of a tile. It is better not to use light colors - over time, due to exposure to pollution, they will darken and lose their aesthetic appeal.

It is preferable to purchase grout from well-known brands. They differ not only in excellent appearance, but also in excellent operational parameters. For example, they may contain substances that prevent the formation of fungus and mold. Our catalog includes products from the following brands:

Select grout by brand

We offer quality grout for joints at an affordable price. You are invited to visit one of our offices in Moscow and St. Petersburg, where you can experience the widest range of products live. At the same time, delivery is carried out throughout Russia: to St. Petersburg and other cities of the country. Call! We will provide detailed information about each product and help you choose the best option for your purposes!



Laying heating mats and ultra-thin heating cable under the tiles is carried out using a special adhesive composition. When determining which tile adhesive is best for underfloor heating, you should pay attention to the type of flooring, the composition of the mortar used and the features of its application.

Brands of tile adhesive for installing underfloor heating

Tile adhesive for underfloor heating is produced by most major European and domestic manufacturers.

The most popular are dry mixes and ready-made formulations of the following brands:

  • EVOSTIK is a relatively new type of tile adhesive. Provides the tightest fit of the finishing material with a maximum joint thickness of 1 cm. EVOSTIK is sold as a dry mix for self-preparation of mortar.
  • Sopro is a tile adhesive for underfloor heating that is especially popular among professional tilers. The advantage of Sopro products is that the German company, along with adhesive mixtures, produces grout, primer and all other consumables for the arrangement of heating floors.
    The composition of the adhesive solution includes crushed volcanic rock, which ensures good strength of the adhesive layer after drying. Sopro is the ideal adhesive for porcelain stoneware, as well as for any other finishing materials. When performing repair work, it is also recommended to use the manufacturer's leveling compounds.
  • Ceresit is an elastic tile adhesive, originally produced on the basis of the German company Henkel. Now it is made under license at large domestic factories. The uniqueness of the Ceresit compositions is their high resistance to moisture, which makes the adhesive the best option for facing a water-heated floor. A grout for seams is also available.

For underfloor heating, tile adhesive from any of the above manufacturers is suitable. It is believed that the best laying quality is provided by adhesives made in Germany or under license from German manufacturers.

How to choose glue for a heated floor

For underfloor heating, you need a tile adhesive specially designed for these works (specified separately on the package), capable of withstanding temperature changes. The adhesive composition should not prevent the penetration of heat from the heating element to the floor surface.

When choosing a tile adhesive for laying tiles on top of a warm floor, you should pay attention to the following features:

  1. Type of facing material. Adhesive for porcelain stoneware on underfloor heating has a high resistance to tile slipping. Provides secure fixation of heavy materials to the subfloor. Does not cause stains and efflorescence on the surface of marble and porcelain stoneware.
    Adhesive compositions for ceramic tiles under floor heating are resistant to temperature extremes, high humidity. Cement and various chemical additives are added to the composition to increase plasticity and strength.
  2. Features of operation. Separate attention should be paid to the conditions for the use of the compositions. So, moisture-resistant glue is suitable for ceramic tiles when finishing pools and saunas. Mixtures for outdoor use can be used when facing anti-icing systems. Thick-layer adhesive is the best solution if you want to level the surface when laying heated floors.


When choosing dry mixes and ready-made adhesives, you should be guided by the manufacturer's information (on the package). Special labeling of goods will also help you choose glue.

How thick should the adhesive be?

The thickness of the adhesive layer when laying underfloor heating is calculated based on the recommendations of the manufacturer of the electrical cable or mats. It is usually recommended to observe a minimum thickness of 3-5 mm. A layer of half a centimeter can be made using a special comb with a tooth height of 1 cm.

When laying mats, for best results, it is best to apply a minimum layer of tile adhesive directly to the cable mesh. After, when laying tiles, use a 0.8-10 mm comb.

Thanks to precise laying technology, it is possible to calculate the adhesive consumption per m². Do the calculations as follows:

  • Tile sizes. According to the technology, the thickness of the adhesive solution for laying traditional 30 * 30 cm floor tiles will be from 3.5 to 4.5 mm. Tiles with a side of 60 cm require a layer of 5 mm. Additionally, you will need to apply the solution to the back of the porcelain stoneware. As a result, the optimal adhesive layer for large slabs will be about 6-7 mm.
  • Spatula dimensions. The most commonly used comb with a pitch of 8, 10, 12 mm. The packaging indicates the consumption of the solution per 1 m². So, for a spatula with a tooth of 10 mm per m², you will need to use 4.2 kg of glue. It turns out that the adhesive consumption rates will be approximately 1 bag (25 kg.) per 5-6 m² of tiles.

The heat resistant adhesive used for underfloor heating has good insulating properties. Therefore, the greater the layer thickness, the worse the floor covering will warm up. The optimal distance between the cable and the tile is 3-5 mm.

What grout to use for underfloor heating

Grout for heated floors and tile adhesive must be from the same manufacturer. The general rule is to select products specifically designed for lining over heating cables or mats.

Each of the adhesive manufacturers has a separate grouting line for joints. The color of the fugue practically does not matter and is selected based on the overall tone of the tile. Joints between wall and floor tiles are recommended to be sealed with silicone compounds to avoid cracking.

The thermal conductivity of the tile adhesive creates optimal conditions for uniform heating of the ceramic coating laid on top of the warm floors. It is forbidden to use ordinary cement-sand compositions for cladding!

The grout performs several functions at once: it provides waterproofing of the joints, prevents the appearance of mold, hides minor laying defects and uneven edges of the tile itself. In addition, it is the grout that gives the cladding a neat, finished look, emphasizes the color and texture of the tile. Consider how to grout the seams on the tiles on the floor, and what composition is needed for this.

Grouts are available in the form of a ready-made mixture or dry powder, which must be diluted to a paste state immediately before processing the seams. The basis of the grout is cement or resin, as a result of which the compositions differ in their characteristics and scope.

There are two types of such grouts - based on sand-cement and based on Portland cement. The first type is the simplest and cheapest grout, designed for wide joints (more than 5 mm). The composition may have different grain sizes, depending on the fraction of sand used. Such a grout is short-lived, crumbles during cleaning, does not tolerate prolonged exposure to water. In addition, it cannot be used on glazed tiles, as sharp grains of sand leave many small scratches on the surface.

The second type is a mixture of cement and various additives that contribute to the plasticity of the mixture and slow down its setting. It is intended for seams 3-5 mm wide. To dilute the dry mixture, water or liquid latex is used, which increases the hydrophobic properties of the grout. Such a grout is easy to apply, fills the seams with high quality, can be used on glazed tiles.

Grout for tile joints - consistency

Advantages of the cement composition:

  • very affordable price;
  • simplicity and ease of application;
  • if replacement is necessary, the old grout is removed from the joints without much effort.

Disadvantages:

  • susceptibility to cracking;
  • insufficient moisture resistance;
  • lack of resistance to chemically aggressive substances;
  • limited color range.

Resin Grout

Such a grout is called a two-component grout, because it is mixed with a hardener before use. Furan or epoxy resin acts as the basis: the first type is used in the industrial sector, the second is suitable for both industrial and domestic use.

Epoxy grout has good moisture and chemical resistance. Seams treated with this composition are easier to clean from dirt, do not absorb water, do not crumble, and retain their original color for a very long time. By the way, the color range of epoxy grouts is much richer and brighter than that of cement grouts, which is due to the presence of special pigments in the composition.

Advantages:

  • resistance to temperature extremes and negative influences;
  • abrasion resistance;
  • plastic;
  • dirt-repellent properties;
  • fade resistance.

Disadvantages:

  • high price;
  • application complexity.

Prices for grout for tiles "Ceresite"

ceresit tile grout

Choice of grout

Grout affects the overall perception of the cladding, and the wrong choice of composition can completely spoil the impression. In order not to be mistaken, you should select the grout taking into account the type of tile surface, the width of the joints, and the color scheme of the finish. The following tips will help you decide:

  • for glass tiles and mosaics, it is recommended to use translucent epoxy compounds. After drying, they do not shine through the tile, unlike other mixtures;
  • for tiles with a relief or untreated surface, it is necessary to additionally purchase a protective compound that prevents the grout from penetrating into the pores;
  • cement grouts are chosen for wide joints (5-15 mm), epoxy for narrow ones (1-5 mm). As a rule, manufacturers always indicate the permissible joint width for a particular type of mixture on the grout packaging;
  • for a bathroom, kitchen and bathroom it is worth buying epoxy grouts, for dry rooms - cement.

As for color, there are also rules here. You can make a colored grout yourself by adding a coloring pigment to the mixture, but in this case it is difficult to achieve the desired shade. In addition, if the composition is poorly mixed, the seams after grouting will be painted unevenly, which immediately catches the eye. It is best to buy a ready-made color mixture: each hardware store presents the available samples on special fans or layouts.

The color of the grout matters a lot. To emphasize the geometry of the tile, you need to choose a composition that is contrasting in color, that is, dark grout is chosen for light tiles, and light for dark tiles. Bright colored grouts give the cladding a fresh and elegant look, but at the same time emphasize the slightest laying errors. But muted pastel colors add restraint and smooth out defects.

In order for the seams to harmonize in color with the finish, it is recommended to choose the color of the grout according to the darkest or the lightest shade that is present in the tile pattern. If the lining is black and white, the seams should be gray. In general, gray is a universal color, it is suitable for any tile, so if you cannot decide, choose it and you will not be mistaken.

It is not recommended to use white grout for floor tiles: the slightest dirt is clearly visible on the white seams, so they will have to be cleaned much more often. In addition, over time, such a grout acquires a yellowish tint, and the seams have a less attractive appearance. The best option for floor tiles are grouts in all shades of brown and gray.

To increase the decorativeness of tile joints, special additives are produced - mother-of-pearl, luminescent, as well as silver and gold chips. All of them are designed for epoxy grouts, and mixing with a cement composition does not give the desired effect. These additives are sold separately and are simply mixed with the working composition until smooth before grouting. The processed seams look very impressive, and, depending on the type of additive, they can shimmer in the light with brilliant sparks, cast in mother-of-pearl, bronze, platinum, or glow in the dark.

Table. Popular brands of grouts

NameDescription

A popular cement-based composition with the addition of organic, polymeric and mineral components. Designed for processing joints with a width of 1-6 mm, used on ceramic, glass and natural stone cladding. When applied, it is characterized by high plasticity, easily penetrates into all voids, and adheres firmly to the surface. After hardening, it is characterized by minimal shrinkage, excellent resistance to mechanical stress, resistance to fading, low water absorption. Available in powder form, packaged in bags of 5 and 2 kg. Available in 32 different colors

Cement-polymer composition with improved characteristics. Designed for joints 2-20 mm, suitable for ceramics, natural stone, agglomerates, marble and glass mosaics. The mixture is easy to apply, dries quickly, effortlessly peels off the surface. After curing, it provides color fastness, dirt and water repellency, resistance to abrasion and stress. Produced in the form of a powder, packaged in bags of 5 and 2 kg

Epoxy composition with mineral fillers. Designed for seams up to 10 mm wide. Suitable for all types of tiles, porcelain tiles, natural stone. After curing, the grout is resistant to chemical detergents, water, ultraviolet radiation, and intense mechanical stress. Available as a paste that must be mixed with a hardener prior to application. Packed in plastic buckets of 5 kg, gray

It is made on the basis of cement, intended for processing joints up to 10 mm wide in rooms with a high level of humidity. Contains anti-fungal additives, is easy to apply, after hardening forms a perfectly smooth surface. The seams do not crack for a long time, they perfectly tolerate intense loads, do not fade. The grout is resistant to temperature changes, so it can be used on heated floors. The color range includes more than 30 shades

It is made on the basis of cement, intended for joints 1-5 mm wide. With proper dilution, the mixture has good plasticity, it is convenient to apply and easy to clean off the surface of the tile. The main feature of this grout is the absence of streaks on the tile after washing. The hardened composition provides the seams with durability and uniformity of color, reliable protection against moisture penetration. Also, Axton grout perfectly tolerates temperature fluctuations, and can be used to process the seams of tiles laid on a warm floor.

Grout Width

The width of the joints also affects the overall perception of the cladding and the quality of the grout. For square and rectangular tiles, the optimal joint width is 1.5-3 mm; for irregularly shaped tiles, the joints can be increased to 12 mm. The wider the seam, the higher the likelihood of cracking under the influence of intense loads on the floor, so making seams wider than 12 mm is undesirable. In addition, with a large width of the joints, the grout consumption unreasonably increases.

At the same time, joints less than 1.5 mm wide are difficult to fill, especially if a thick epoxy mixture is used. And poor-quality filling contributes to the penetration of moisture to the ends of the tile, the accumulation of dirt, and the development of mold. Cleaning too narrow seams is also difficult, and over time, the lining becomes sloppy.

How to properly seal seams

The grouting process is quite simple and consists of three main stages: preparing the seams, applying the grout mixture, and cleaning the surface. Let's consider each of them in detail.

To process the seams you will need:

  • rubber and narrow metal spatula;
  • capacity for kneading grout;
  • construction mixer;
  • dry grout;
  • a bucket of clean water;
  • sponge or soft cloth.

Grouting can be started a day after finishing the floor, provided that the tiles are laid on the adhesive. If laying was carried out on a cement mortar, grouting is performed no earlier than a week or 10 days later, depending on the temperature and humidity conditions in the room. The grout itself is carried out at a temperature of +5 ° C to +35 ° C and a humidity of not more than 70%. It is also necessary to exclude drafts and forced floor heating so that the mixture dries naturally. Only under these conditions will the seams be as strong and durable as possible.

Step 1. The surface of the tile is cleaned of dirt with a damp sponge, the remaining solution is removed with a rubber spatula.

Step 2 Clean the seams of glue by half the thickness of the tile. This can be done with a plastic cross, a corner of a spatula, or any other suitable object. The main thing is not to damage the edges and the decorative layer of the tile. Finally, wipe the surface with a clean, dry cloth.

Step 3 Mix the grout solution. Water is poured into the container, then the dry composition is poured and mixed with a mixer until smooth. The ratio of water and powder for different brands of grout is different, so be sure to look for the proportions in the instructions on the package. These proportions must be strictly adhered to, otherwise the solution may delamination, the appearance of cracks in the seams during drying, and other defects.

Add the dry mixture to the water according to the instructions on the package.

Advice. It is not necessary to immediately prepare a lot of the solution, since it seizes rather quickly and is unsuitable for work after hardening. It is better to knead in small portions that you have time to fully work out.

Step 4 The solution is allowed to stand for about 5 minutes, then again intensively stirred with a mixer for 1-2 minutes. This will achieve maximum uniformity of the composition, which will facilitate its application and improve the quality of filling the joints.

Step 5 The solution is collected with a rubber spatula and applied across the seam with short movements, rubbing the mass inward. Excess composition is removed with longitudinal movements, holding the spatula at an angle to the surface.

Step 6 After 20 minutes after grouting, you can proceed with the initial cleaning of the tiles. To begin with, with a rubber spatula, the frozen crumbs of the solution are scraped off at the seams, and they are swept away from the surface. In the process of work, try not to catch the seams themselves, so as not to leave indentations.

Step 7 They take a damp, clean sponge and wipe off the traces of grout in short circular motions. It is impossible to rub in one place for a long time, so as not to remove excess at the joints. After the sponge, the tiles are wiped with a clean, slightly damp cloth.

Advice. For effective cleaning, the sponge should be washed as often as possible in plenty of water. A dirty sponge will only leave streaks, and it will take longer to clean.

After cleaning, you need to carefully examine all the seams: if voids and recesses are found, you should knead a little grout again and repair the defects separately. If the tile is unglazed, and in some places the grout is not cleaned well, a special cleaner will come to the rescue. Such tools are sold in all hardware stores and are relatively inexpensive. Since the cleaner is a chemically aggressive substance, it is necessary to work with it with gloves.

Tarkett floor tiles prices

tarkett floor tiles

Video - How to grout the seams on the tiles on the floor

Underfloor heating, due to a number of advantages, is increasingly being used in apartments and single-family houses. The correct operation of the system depends on the quality of the installation of cables or heating elements, as well as the selection of an appropriate floor covering.

Installation of tiles on underfloor heating requires the use of an appropriate adhesive mortar and grout

Experts recommend using a heated surface made of materials with high coefficients of thermal conductivity and its accumulation, that is, ceramic tiles, ceramic products or natural stone. It should be borne in mind that for gluing the cladding on this kind of surface, you must use the correct mortar and grout.

A warm floor, like any other object, undergoes changes when heated. When the heating is started, the surface will heat up and will give off heat heating the room. In this regard, the products used for the installation of floor cladding must be highly elastic. Otherwise, the adhesive or grout layer will crack. Consequently, ceramic or natural stone tiles will peel off the substrate.

Installation of cladding on underfloor heating requires the use of an adhesive solution, which is characterized by good flexibility. This is extremely important because materials are exposed to high temperatures and change their volume. This means that the layer connecting the plates to the base must withstand heat. When using elastic adhesive mixtures, we must not forget about using a grout with similar characteristics.

Installation of tiles on a heated floor requires the use of an appropriate adhesive and grout. Choosing the right commercial cladding solution for underfloor heating is no guarantee of complete success. The main principle during gluing the cladding is the combined Floor-Tile method, which consists in applying glue to both the base and the tile. This method ensures 100% adhesive coverage of the space between the tile and the subfloor.

The same method is also recommended for bonding underfloor heating ceramic tiles. Otherwise, in places where there is not enough solution, air will form, and later water will seep in, which can adversely affect the functioning of the heating system.

Do not neglect the additional seams on the cladding. If the substrate has not been preheated prior to coating, no seams should be made. The gradual inclusion of heating will lead to the fact that excess moisture can freely evaporate from the floor through the gaps prepared for sealing the seams. Accordingly, a long technological pause is needed after laying the tiles, as well as the gradual switching on of the heating of the newly made floor, which will allow all layers of the floor to dry and protect against possible deformations or moistening of the coating.
In the presented video, you can view recommendations on how to choose a grout for different types of tiles. Happy viewing and good luck with your repair.