Perhaps nothing creates such comfort in the apartment as a feeling of warmth and comfort under your feet. Therefore, many people are thinking about equipping their bedrooms, bathrooms, kitchens and other rooms with the “Warm floor” system, in which the heat source is located directly under the floor covering.
But here reasonable questions arise: Is it suitable for floor coverings of various types? For example, is it possible to lay a warm floor under linoleum?
The choice of underfloor heating
When choosing a warm floor used in conjunction with a linoleum coating, the specific characteristics of this material should be taken into account. Therefore, it is very important to follow certain rules here:
- The floor temperature during heating should not rise above 28–30 degrees. Its excess can cause a change in the shade and shape of the linoleum. That is, the power of the heating system should not exceed 180 W / m2.
- The basis for linoleum, covering the structure of underfloor heating, should be as uniform and smooth as possible.as any irregularities will show through the finish coating, making it look unaesthetic.
The heat carrier (hot water) circulating through the pipes is used as a heating source.. In apartments with central heating, this method of heating is used very rarely. This is due to the complexity of the installation work, as well as the need to significantly raise the floor level, which causes the ceilings to drop, making the rooms low and uncomfortable.
The quality of the screed must be almost perfect, otherwise all its irregularities and imperfections will be visible through the coating. In addition, it is difficult to lay a water-heated floor under linoleum in rooms with wooden bases.
Consists of a heating cable laid on a prepared base and poured with a layer of screedand a regulator designed to maintain the optimum temperature in the room.
Their main advantage is independence from the heating system. A warm electric floor under linoleum can be turned on and off if necessary and it is easy to change the temperature in the room using special regulators.
The main thing is to use high quality linoleum with it, since cheap material will emit an unpleasant “rubber” smell when heated. In addition, its service life will be much shorter.
It is produced in the form of a thin flexible film having a thickness of 0.4 mm, from which rays of the infrared spectrum emanate. The function of the heating elements in this case is performed by strips of graphite, through copper-silver conductors supplied with a voltage of 220 V.
The temperature of such a floor is regulated by a thermostat connected to an electrical outlet.
In rooms equipped with warm infrared floors under linoleum, a stable, comfortable temperature is almost always maintained, since they do not heat the air, but the objects in the rooms.
The choice of linoleum
Having decided on the choice of heating system, it remains to decide which linoleum is suitable for underfloor heating. Wherein First of all, it must be borne in mind that this coating is most often of synthetic origin.. That is, when heated, it can release substances that are hazardous to human health.
Currently, there are several varieties of linoleum on sale.. For example:
- Marmoleum. High quality natural coating with antistatic and flame retardant properties.
- Vinyl (PVC). It has a low price and good decorative qualities, but emits an unpleasant odor when heated.
- glyptal (alkyd). Produced on a fabric basis. May deform when exposed to high temperatures.
- colloxyclinic (nitrocellulose). Thin, single-layer fabric with high moisture repellency, but with a high degree of flammability.
- relin (rubber). Composed of rubber, synthetic rubber and bitumen. Does not tolerate high temperatures well. It is rarely used in residential buildings.
When laying a warm floor under linoleum, it is also necessary to take into account what materials the base of this coating is made of. It can be natural: fabric, felt or jute, or artificial: using fiberglass, polyester, PVC foam, etc.
In this case, do not use cloths on a fleecy felt or jute base, as well as on PVC foam, which have a high degree of resistance to temperature changes. Heat will not pass through them very well.
Information about which linoleums are suitable for various underfloor heating systems can be presented in the form of a table for clarity:
|Variety of linoleum
|Marmoleum, vinyl, alkyd (commercial versions)
|Marmoleum, vinyl, alkyd (commercial versions)
Mounting and installation
When arranging a warm floor under linoleum with your own hands, it is important to follow the technological sequence of work and take into account the characteristics of the materials used.
After removing the old coating, it is inspected to identify possible problem areas and irregularities. If necessary, it poured with a small layer of cement-sand screed, to eliminate existing shortcomings.
To obtain a smoother surface, the base is sometimes additionally ground.
A “rough coating” is spreading, which acts as the basis for the construction of a warm floor. After that, the wooden floor is cycled to remove all irregularities. A layer of plywood or chipboard is laid on it.
The horizontalness of the base is controlled using the building level. The maximum allowable deviations in height must not exceed 3 mm. A layer of waterproofing material (a polyethylene film with a thickness of at least 50 microns) is laid on the resulting even, smooth and completely free of debris surface.
To create a heat-insulating layer, special foil materials are used. with a soft interlayer, for example, infraflex, or a metallized film based on polyethylene or lavsan.
At the joints, the sheets of the heat insulator are fastened with adhesive tape and attached to the base with a construction stapler. Its laying is carried out around the entire perimeter of the room with the foil side up.
It is cut to size, in specially marked places with the image of lines with scissors. Arbitrary cutting of the film, without observing these requirements, is not allowed. The length of the strips depends on the number of connection points, but no more than 8–10 m.
The film sheets are laid out on the base, with the copper side inward close to each other, without overlap. At the same time, their contacts should be directed towards the wall with the thermostat.
The temperature controller included in the set of film underfloor heating under linoleum can be stationary (overhead) or connected to a power outlet using a power cord.
That’s why it is better to place it on the wall in the immediate vicinity of the electrical wiring. Mounting wires, power cables and signal wires from the temperature sensor are connected to it, most of which will be located under the plinth.
The temperature sensor is mounted under the film, fixed with adhesive tape under carbon paste, on a black strip, making a recess in the thermal insulation for tighter fixation.
In places where the connection will not be made, the cuts of the copper bus are insulated with a bituminous insulator. In this case, all silver contacts connecting copper elements with carbon heaters along the entire length must be covered with insulating material.
Copper current-carrying strips are completed with contact clamps, placing one half of them inside the film, and the other half outside, fixing them with pliers.
After the installation of the main elements of the infrared floor, it is covered with a dense plastic film, overlapping it and fixing it with adhesive tape.
It is assumed that after this manipulation, linoleum can be laid on it, but, given the softness of this coating and its poor resistance to mechanical stress, before laying it, the warm floor is covered with plywood sheets, nailing each sheet to the base. When doing this, be extremely careful not to damage the heating elements.
How to lay linoleum on the square, see the video:
The cost of materials and equipment
A very important question that interests many consumers who want to equip their apartment with underfloor heating under linoleum is the price of this coating, as well as the cost of services for installing the entire system and laying the finish coating.
Prices for infrared type film systems depend on several factors.:
- Degrees of heat resistance.
- Availability of anti-spark silver mesh included.
- The presence of a self-regulator.
- Manufacturer brand and reputation.
The average prices per square meter of such floors are:
Installation of a film underfloor heating under linoleum will cost about 1300 — 15$ per square meter. This amount includes a full range of works, including the installation of the heating system and laying the finish coat.
The average price of linoleum for underfloor heatingdepending on the composition and the manufacturer’s company will be:
- Natural: 1380 — 2650 rubles per sq.m.
- Semi-commercial: 330 — 780 rubles per sq.m.
- Commercial: 340 — 8 dollars per sq.m.
For self-laying linoleum, the following tools are needed:
- Knife with a sharp blade for cutting the coating.
- Edger hammer for smoothing joints.
- Manual roller (roller for tightly pressing the material to the surface).
- Ruler, building level, adhesive tape.
- “Cold welding”, for filling joints.
To help decide whether to install underfloor heating under linoleum can be reviews of people who have already tried to do this in their house or apartment. Here is some of them:
Anton, 32, world
“Having lived in a new apartment for about five years, my wife and I decided to change the floor in the kitchen. And since for some reason we wanted to make it more comfortable there, we decided to make it warm. We chose an infrared film floor, and linoleum on it. The laying work was done very quickly (hired specialists). And everything would be fine if in a couple of months my linoleum did not begin to deform. He looked just terrible. In general, we removed it and replaced it with a laminate. While satisfied. So, when buying linoleum for underfloor heating, make sure that it is heat resistant enough and do not heat it too much. Otherwise, just waste your money … ”
Marina, 42 years old. Vsevolzhsk
“The decision to install a heated floor system under linoleum was inspired by our neighbors who tried this “pleasure” in their apartment. For a long time they doubted how the coating would behave when heated, after all, synthetics. As a result, we bought semi-commercial type material. When buying, we were guided by the icons on the package, allowing it to be laid on a warm floor. In general, this linoleum has been lying with us for about a year. Won’t fade, shrink, and never stink when heated. So, if everything is chosen correctly, there are no problems. And, by the way, he, well, keeps heat even when the system is turned off. So we are very happy!”
Angelina, 24 years old, Pskov
“My friend is in a private house, in the bathroom, pl. 15 squares, laid linoleum on a warm electric floor. Been using it for over a year now and have no regrets. It is pleasant to walk on it, it dries faster and faster, and there is no smell, and it does not warp. True, before laying it, it was specially “aged” longer so that it would not deform when heated. And so all is well…”
In a word, subject to the rules of laying and installation, selection of material of appropriate quality, with increased thermal protection, linoleum together with underfloor heating can be an excellent solution for finishing various rooms.
Especially since it is easy to use, practical and has a lower cost compared to many other finishing materials.