USHP-the Foundation with his own hands. USHP-Foundation: reviews

The Construction of any building is impossible without the construction of the Foundation. This is the basis of any construction, which ensures reliability and durability. There are quite a variety of types of Foundation. Modern construction provides the introduction of new technologies, which is aimed primarily at efficiency. This property is achieved through the use of materials that retain heat. Such innovation at the stage of laying of the building is of ushp-the Foundation (USHP – insulated Swedish plate).

Foundation

Insulated Swedish plate, as the basis for installation of the Foundation, was first introduced by German developers, despite its name. Used USHP-Foundation in Russia for a relatively short time, but already enjoys great success. Swedish plate is a monolithic structure, which serves as not only the Foundation, but the floor of the first floor with a finished and heated. This Foundation has good bearing capacity, laying its possible on almost all types of soil – weak, frozen, chemically aggressive, etc. Unlike other types of is that the insulating layer is provided not only on the lower base, and the perimeter of the structure on the side walls.

The Advantages of the Swedish Foundation

These include:

• Quick construction time;
• Ability to use on different soils;
• High thermal insulation of the base of the building, providing constant temperature inside the premises;
• Savings on heating costs by reducing heat losses;
• After laying the Foundation is not required leveling work of the surface;
• Enhanced waterproof, which prevents moisture penetration and mold formation;
• Hides all the communication systems, by laying them under the Foundation slab.

Design

In order to begin to work on the styling, you need to carefully design USHP-Foundation. The calculation must be done, starting from the project of the building itself. Need of the accounting of project data ensures the correct location of all necessary communications. In the design of Foundation must rely on primary sources provided by the Swedish producers, because Russian analogues of calculation does not yet exist. Many construction companies developed procedures that describe only the consistency and correctness of the work to establish the Foundation.

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The Technology of laying of the Foundation

Using high-quality thermal insulation material reduces the thickness of the entire stacked structure, which can significantly reduce the timing of paving works. On average, the construction of the Foundation, depending on the area, the time is about 7-10 days. If you compare the timing with pouring a conventional strip Foundation, the process takes quite a long period: 30 to 45 days. USHP-Foundation with your hands is simple, if you follow the rules foreseen by the project. The sequence of all work can be divided into several stages.

Preparations

1. Is the preparation of the Foundation pit, the size of the future base removed the soil layer depth from 10 cm to 50 cm
2. If the ground on which will be mounted USHP-the Foundation is very humid, you need to pre-run the drainage and divert groundwater. A drainage layer is a cushion, lined with gravel and coarse sand.
3. After the arrangement of the drainage at the bottom of the pit is laid a geotextile, on top of it and poured layers of sand of a certain faction that is provided by technology and compacted.
4. USHP-the Foundation, the laying of communications. This operation is quite responsible. You must provide all the inputs – Sewerage, electrical, water, etc., which must be laid with extreme precision, ensuring the correct connection of communication systems in the house.
5. Installing formwork. Then, laid on top of sand, backfilled and compacted gravel. This layer should be about 100 mm.

Stacking of the insulating layer

For these works apply insulation type extruded polystyrene foam. When selecting insulation material should pay attention to the following parameters:

• As the strength of depression, with 2% maximum deformation, because he will carry the burden of the whole house. The strength of the pressure should be not less than 0.2 MPa;
• The thermal conductivity of the material is from 0.030 to 0,034 W/(m·K);
• The presence of the L-shaped edges that will simplify installation and eliminate cold bridges.

When installing start set the side slab insulation with a minimum thickness of 100 mm. Then fit the heater on the whole plane. Minimum material thickness shall be not less than 200 mm, that is, if the polystyrene has a thickness of 100 mm, you need to put insulation in 2 layers.

Reinforcementdesign

This process has its own characteristics and involves two sequential stages:

1. For the grillage is made of the special design of the longitudinal spatial increments of the cross-dressings of 300 mm. Diameter valves used shall be 12 mm. Should be performed by twisting a bundle of rebar that will be installed on USHP-the Foundation, the technology does not allow the use of welding. Welded joints of reinforcement can influence the strength of the future Foundation of the monolith. This reinforced design is going outside of the Foundation and transferred to it and is set.
2. Is the reinforcement of the surface of the Foundation. To make this work you need a rebar diameter of 10 mm. Longitudinally stacked rods with a pitch of 150 mm, and then superimposed transverse rows at the same distance, and the fittings are linked together. The overlap of the abutting rods cannot be less than 25 mm.

Installation and connection of the system “warm floor"

The Only type of Foundation that is integrated with heating – that of ushp-Foundation. Underfloor heating requires a professional design that will ensure the maximum use of heat loss. With proper calculation would not be necessary to use additional sources of heating. Laying system is mounted on top of reinforced structures. You can use these types of pipes:

• Metalloplastikovye;
• Polietileno;
• Mednye.

The choice of pipe products you need to pay attention, because for such a system is appropriate to use only high-quality tubes are designed to operate at high temperatures. Otherwise, any jump in temperature will bring the system down, and then you can forget about the "warm floor" of your home. The best option for such structures can be considered as molecular cross-linked polyethylene, it has a very high strength. Using this kind of pipe, you get a reliable USHP-the Foundation, the problem of long-term operation of the system “warm floor" in your house will be resolved.

The Main condition for quality insulation – the rationally laid out the contours of the pipes:

• The distance between the laid pipes shall be not less than 10 cm, but not more than 25 cm;
• Length of one circuit shall not exceed 90 m;
• Mount to the valve you can run a nylon yokes;
• The layout of the rooms – in the center of the room should be pipes more and close less.

The Process of concreting

Before the concrete pour, the heating system should be checked for leaks at the test pressure which exceeds the working three times. During concreting, the pipes should be filled with liquid, in order to avoid their deformation. Use to fill, you only quality concrete, its distribution along the surface is carried out by using a shovel. The spreading of the concrete shall be provided at all remote places for fitting. The time of pouring concrete should not exceed 1 hour. Desirable concrete USHP-the Foundation with his own hands at low temperatures, such work requires high qualification of saluditos because this temperature regime provides for a special technology. To get the floors ready for final processing, you must carefully smooth over and sand the surface of the concrete layer. After the grouting is necessary to ensure the correct mode of maturation, which will further provide a qualitative basis. We have considered the principal stages in the process of laying the Foundation. The arrangement of such a ground for your home in addition to all the charms has its drawbacks.

USHP-Foundation. Cons of using insulated Swedish plate

1. Laying this type of Foundation is very expensive, because the process must be applied only high-quality materials.
2. Under the projected building, it is impossible to foresee the construction of the basement, as it is prohibited by the base design insulated Swedish plate.
3. This is the Foundation of the house as insulated Swedish plate, not suitable for buildings of large mass. This Foundation finds its application for erection of single-storey cottages and larger two-storey houses.

Of Course, everyone has their opinion. If you are interested in impressions, which makes the owners of the Foundation of ushp, reviews from people who constructed the Foundation for their homes, you will be able to study in any construction forum. No clear opinion, but most of the positive reviews give advantage in favor of such technology.