The thickness of the screed flooring: experts ' recommendations

As you consider what should be the thickness of floor covering, you have to consider many factors. Do not assume that more impressive thickness will make the design better. This sin many home masters who do not have relevant experience. In practice, it appears that the ultimate strength of the fill is not in all cases depends on the thickness, because the drying process can go wrong, for example, will last several months, in this case, the screed will not reach the desired characteristics. In order to achieve the desired result, it is necessary to carry out the exact calculation.

The Optimum thickness

The Leveling of the sexes is a pretty important process is neglected very often. This is especially true in residential areas. As an exception may be finishing coat laying on the joists. The thickness of the floor screed for heated system will differ from the usual 40-mm fill. If you plan to lay water pipes, you will need a 70-mm layer, but the thickness of the screed in this case should not be more than 100 mm. If we are talking about electric heat source, you can hide it under the concrete, the height of which is equal to 5 cm or less.

After pouring the solution cannot be warmed up by running warm the floor, because the strength of the screed will be reduced. As the basis for these figures are the strength requirements of the fill. Experts recommend to use more accurate parameters for the coupler. Thus, the thickness of the screed over water Underfloor heating can be equal to the limit from 7 to 10 cm as for an electric system for heating, the thickness may be equal to 3-5.

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Reference

The hardening of the largest thickness can reach 140 days. The system should be pre-tested for integrity and performance. This is especially true for pipe water floor. The system will start up again towards the end of the solidification process to residual moisture in the depth of the concrete has been dried completely.

The Minimum height of screed

If you follow the sanitary norms and rules, in a residential area must be filled with mortar layer at 40 mm and above. This figure is a minimum. But in some cases, allowed the formation of a thin layer. This can be attributed to low activity of operation of the premises, with regard to utility and storage rooms, because their visit is very rare.

If the thickness of the floor screed will be less than 30 mm, the strength of the material may be inadequate in emergency situations. This applies to drops massive objects. From this it must be concluded that the minimum height is limited by the option in 35 mm.

It is Important to pay attention to exceptions. If the goal is to increase warmth and sound insulation qualities of the ceiling on uneven grounds, you should form a crust for easy tightening. On the irregularities of the plate is filled with mortar, the thickness of which is 2 cm After drying, the material is laid on top of insulation or soundproofing, next comes a dividing thin film. The final stage is filled with a solution of calculated thickness to ensure proper strength.

Features determining the thickness of screed

Before you will be determined by the thickness of floor covering, you must decide under what conditions to operate the premises. Therefore, to some extent, you will be able to determine the operational load on the surface. For example, the public rooms are on the type of hallways, corridors, kitchens and living rooms require a significant thickness of 70 mm or higher, or a reinforcement, with which the height of the reservoir can be reduced to 40 mm.

If we are talking about the nursery, which will combine the gaming space, it is important to achieve the impressive strength of the coating. The thickness of the screed in this case shall be 50 mm. If we take into account the above estimated parameters, it begs the question, what is the maximum thickness of floor covering for the whole apartment. To answer this question it is necessary – the height of the layer should be the same everywhere.

In some cases, the height difference between the rooms or within the same space artificially created, but this option is not the most simple. If you equip a floor heating system or want to achieve a high strength base for the topcoat, we should focus on the thickness in the range of 50 to 60 mm. This will be enough, which is especially important for the reinforcing layer. For calculations reference should be doorways. After all, if you strongly raise the floor given a finish coating, we can reduce them in height, which would imply the need for installation of door leaves of unusual size.

More about the minimum thickness of screed

Some experts believe that there is an optimum thickness of the screed of the floor. This belief is based on the fact that the parameter will bedepend from several factors, among them:

• A kind ceiling;
• Ground;
• The purpose of the room.

All of these conditions affect not only the ultimate measure of thickness, but also on:

• The cost of the work;
• The type of the used reinforcing mesh;
• Select the brand of cement.

Based on the height of the concrete layer, it can be argued that the coupler may have the following kinds of thickness:

• Min;
• Medium;
• Maximum.

Sometimes the Minimum thickness is 20 mm. This type of coverage can be arranged without the use of reinforcement, but only in the case when works, use a self-leveling mixture. Average thickness is 70 mm. In this case, you should use rebar or mesh reinforced. Maximum thickness is 150 mm. the tie has the form of a monolithic structure with rebar. This option is for a private house may be the floor and Foundation, which are combined into a single system.

The Thickness will depend on the materials you intend to use when building a system. For example, the minimum thickness may have a layer of concrete with the addition of gravel. For thin screeds the most suitable choice are self-leveling mixture for the finish floor design. At the final stage the surface is covered with a decorative material. Using this technology it is possible to achieve the formation of a perfectly smooth thin layer, after drying of materials which you can proceed with the installation of decorative coatings.

The Thickness of the screed over water Underfloor heating and more determined by taking into account the diameter of the pipe. If the diameter exceeds 25 mm, a layer of 50-70 mm. Experts believe that for normal operation of the system and a good warm the room the thickness of the screed over Underfloor heating can be 4 cm If the coupler is higher, the thickness will complicate the adjustment of the heat supplied, because a huge part of the energy will go to heating of concrete.

What to consider when building a screed with a minimum thickness

Acquainted with the sanitary norms and rules, you will be able to understand that the minimum thickness of the screed may be equal to 20 mm. However, in this case, it is necessary to consider one feature. Depending on what material used, the layer height can be different. If the screed is formed on the basis of metalloremont, 2 cm is enough. If the reinforcing mesh to use you do not plan, the minimum thickness may not be less than 4 cm Is due to the fact that a smaller layer height will not be able to provide durability and sufficient strength of the coating.

If provided, the minimum thickness of the screed Underfloor heating, you must comply with several conditions, among them:

• Leveling screed;
• Availability of sub-floor;
• Lack of valves and pipes.

If we are talking about a room for technical purposes, thin concrete layer cannot be used, because the surface will be increased.

More on the thickness of the screed system of water Underfloor heating

Radiant floor heating – it is a system of heating elements – the tubes are filled with water. They should be located across the floor area. Usually such a system is placed in a cement screed to protect it from mechanical impact. It is important to properly calculate the thickness of the screed for water warm floor. This will ensure normal functioning of the system.

The Thickness of the screed – is the key to the mechanical strength and proper health system as well as effective heat transfer and efficiency. If you equip a thick tie, it will have a high heat capacity, as a result, the temperature adjusting will be much harder. The coupler under such conditions, it is heated much longer, but the heat gives a longer period of time.

Laying the screed is thinner, you get a floor that is heated in a short time, however, such a structure may overheat and covered with cracks, the heat will go over the strips, which are limited to step between the pipes under the floor. Choosing the thickness of the screed for water Underfloor heating, you should note that this parameter determines the degree of protection of the pipeline and provides uniform distribution of heat over the surface.

The Total thickness of the screed for the dwelling should not be more than 100 mm. If we are talking about the pavilions, centers and warehouses, this option may be 200 mm or less. The thickness of the screed up to 300 mm only in aircraft hangars. The minimum thickness when laying the floor heating system is 65 mm. the Thickness of the screed on the water warm field must be equal to the limit from 20 to 50 mm. If the design is cantilevered between the tubing and the base should be laid heat and sound insulating layer, then the thickness of the screed is 35 mm.

Screed on a warm floor system

Once you have determined what the thickness of the screed floor should be, you should start to work. The base is cleaned, because dirty, the ceiling will be able to provide the desired degree of adhesion. Clean and dry the coating should walk primer mixture in 2 layers. To calculate the volume of screed should determine thickness, multiply by the area of the room.For residential and household rooms, we recommend laying the screed in the range of 65 to 70 mm. the Layer above the pipe is equal to 45 mm, whereas the thickness of the screed under floor heating water would be equal to about 20 mm. If you use a blend for self-leveling floors, it is possible to reduce the thickness of the layer to 45 and 25 mm, respectively. This is because such mixtures have a higher density.

Experts do not recommend strongly to save on the thickness, because in this case the floor may adversely react to unexpected load. If the room you plan to install large items, you should provide reinforcement of the top layer with a metal grid. It can be used point or over the entire area. To reinforce the screed, use of solid additives according to the type of fibers or chips made of polypropylene. The first one allows to obtain a mixture that is called concrete.

Selecting the impressive thickness of the screed of floor heating, you would expect the curing of the layer to 1.5 months. Before you start to put the finish coating, it is necessary to wait for the complete dryness of the Foundation. In this case, the more convenient is a screed, a rapid polymerization.

About the features of laying ties

If you decided to pour the screed for water floor heating, the technology of the works will differ only in the presence of damping joints. If we are talking about putting a 10 m², the seams will be located in the walling. The special line depreciation must be placed along the bottom of the wall. It is then possible to compensate material expansion under influence of temperature.

When the room is more spacious, will require additional seams. Among the functions of the buffer strips not only compensation, but also insulation from the walls, because the coating has termootdelenija foil. In order to achieve a positive result, is not enough to choose the right thickness of the screed on the water warm the field. It is also important to check the efficiency and the density of a hydraulic system. You want to ensure a heat reflective layer under the pipe to eliminate heat loss. The choice of materials must be approached responsibly, this is true in respect of cement, which is improper and prolonged storage is compressed.

Conclusion

Before the floor leveling you have to be properly defined, the thickness of the screed Underfloor heating. This parameter depends not only on the wishes of the user, but also on design features of buildings, properties, ceiling, power, floor covering materials and other factors.