The opportunity to gain independence from the central heating work is particularly valuable in the off-season, when heating is not yet turned on, and the room is already cold. Good job of warm floors of various designs. Before you mount the underfloor heating in the wooden house or apartment under the laminate should be familiar with the features of these works.
Features laying underfloor heating for laminate
There is a misconception that under the influence of elevated temperature laminate emit dangerous chemicals used in its production. In fact it is not. With proper choice of materials Heated floor can be laid and under such a coating. It is also important to observe the temperature balance and the thickness of the laminate.
For such a coating should be selected sawmills laminate, at least 7 mm. Its slats are heavy enough to withstand external shocks and thin, it is good to transfer heat to the room.
Furthermore, it should use a material with emission class E1 or E0. In this type of laminate is applied with a special character schematic representation of underfloor or inscriptions «Underfloor heating», «Warm wasser». Materials marked E2 and E3 with the system of underfloor heating can not be used.
The installation procedure of the heating system on a wooden floor under the laminate has a number of characteristic features:
- Unable to improvement of concrete ties, which could cement the floor and serve as a natural heat conductor.
- When the thermal expansion floor joists expand and contract, thus shifting.
- Over time, the floor gets a little mobility, and starts to "play", adversely affecting the heating system. By this causes normal wear and tear of wood and a small load-carrying capacity of the laminate.
The choice of a warm floor under the laminate
Under the laminate structure can be laid in several types:
- water;
- infrared;
- electric.
Radiant Floor Heating
This is the cheapest and most secure way to organize heating flooring. Above the subfloor stacked pipes that pass the heated water or antifreeze. Its main drawback - considerable, in comparison to other types of systems, the thickness of the heating layer, determines the thickness of the stacked tubes.
In operation of this type of heating is important to consider characteristics of a laminate coating:
- eliminate sudden changes in temperature;
- Room temperature should not exceed 28 ° C;
- prevent the increase of coolant temperature over 50 ° C.
Infrared Heated floor
The heat source in such systems is a polymer coating film on which a layer of conductive material.
Each infrared element of the system to improve the strength and wear resistance encased in a polyethylene film, only slightly increases its thickness.
The advantages of such systems include:
- ease of installation;
- low weight and thickness of the material;
- ease of temperature control;
- rapid heating of the coating.
The main drawback of infrared floor heating can be regarded as its high cost.
Electrical floor heating
The heating element in these systems is the electric cable connected to the building power supply. When activated, it creates a magnetic field heats a multilayer shell and heat is transferred to the floor covering.
The main disadvantage of electrical systems in combination with a wooden base and laminate - risk of short circuit.
The process of laying
Laying laminate flooring on a wooden base, several factors must be considered:
- flatness and the substrate strength;
- materials used;
- humidity in the room.
Before carrying out any work necessary to make the floor plan, which specify the placement of furniture and stationary radiators, if they exist. In these places, the heating elements are not mounted.
In addition, well-formed plan will make it possible to accurately calculate the amount of materials needed for installation:
- Laminate selected considering the above recommendations;
- insulation;
- substrate;
- reflective substrate;
- plinth;
- auxiliary supplies.
Substrate preparation
The first step is to arrange reliable hydro insulation base that would eliminate the formation of condensation on the bottom surface of the laminate:
- Completely removed the old paint and finished floor boards.
- Subfloor is tested on the level of damaged logs should be replaced with new, lift sagging wedges.
- The surface of the sub-floor is thoroughly cleaned of dirt and dust.
- Used for flooring planks of equal thickness, treated with antiseptic and water repellent agents.
Construction of thermal insulation
The next step in the work - installation of thermal insulation:
- Under lags plywood or particle board is fixed so as to obtain a niche for placing insulation.
- When using a water system the entire space must be securely waterproofed.
- The recess without clearance fit insulation sheets.
- Above the insulation is fixed heat-reflecting foil, guide radiation from the heating elements up.
Laying of floor heating elements
Above the reflective film stacked elements of the system:
- All parts are mounted radiant as a snake single loop.
- The distance between the coils is selected so as to provide uniform heating of the floor covering.
- On top of the assembled structure mounted subfloor. It is necessary to make the most of flat and horizontal finishing laying laminate.
The test run of the system
Before laying the laminate must be checked for correct operation of the system collected. For this purpose, for 3-4 days should spend a few cycles run by raising the heating temperature 5 ° C daily, until it reaches the rated value.
The flooring system with water is necessary to submit them to the maximum allowable pressure and monitor a possible deformation and leaking of pipes.
After checking the need to wait for the cooling surface to 15-20 ° C and laid rough coating.
Laying laminate on Heated floor
After mounting the rough flooring can proceed to laying laminate:
- On the floor is placed a plastic substrate, the individual sections are connected end to end by connecting them with tape construction.
- the substrate is placed on top of the laminate, focusing on the recommendations of the manufacturer. Lamella is unacceptable to lay close to the walls, there should be a gap of 3-5 mm.
The subtleties and nuances of the installation are described clearly in the video:
Basic mistakes when installing floor heating
In the planning and execution of works laying of floor heating are most frequently encountered the following errors:
- Incorrect calculation of the amount of material. The heating elements must be placed just under the free portions of the floor covering. Elements under the furniture will not work for room heating, and due to the lack of heat removal can fail.
- Errors in the preparation of the material. Electric cable and infrared plates can be cut only at the points specified by the manufacturer. If any section of cable is longer, it is necessary to arrange the turns again, a little close to each other.
- Errors during assembly material. electrical system loops must not overlap or touch each other. Such a situation can lead to overheating and failure of the output conductor.
- When laying need to take into account the manufacturer-recommended minimum bend radius of the conductor.
- It is an error stacking heating elements on unprepared surface. Work can be done only on a perfectly clean surface.
- The lack of checks before laying laminate. If installation errors will show up after the completion of all the works to fix them will be much harder.
- Lack of individual temperature control for each room. Apparent savings on sensors and controls can have serious disadvantages in use.
Videos for the preparation of wooden floor for laying laminate
Recommended use
For long-term use of any type of underfloor heating is necessary to observe some simple rules:
- The heating temperature should not exceed + 50 ° C, the optimum mode - from 20 ° C to 30 ° C.
- Can not be laid at places where the heating elements are installed, the items affecting the heat dissipation - carpeting, carpets, furniture and the like without legs
- With long-term absence in the room during the cold season can not completely turn off the system should be set at the lowest possible controller operating mode.
- To avoid damage to the heating elements is impossible to drill holes in the floor, screwed therein screws, nail, etc.
- Cleaning electric underfloor must be carried out using a minimal amount of water, avoiding its exposure to the laminate and the effect on the heating elements.
Self installing underfloor heating under laminate flooring in the rooms on the wooden floor with the right selection of materials and the planning of work - quite feasible task. A properly installed system will bring into the house of comfort and convenience.