Warm blind area around the house: the need, materials, installation technology

Normal temperature inside the house, especially during the cold winter season, is the main condition for a comfortable stay in it. It depends on many characteristics of the house, one of which is the presence of a blind area around its outer perimeter. Experienced craftsmen who know about all the negative aspects of the absence of a blind area, recommend that you always perform this part of the work when building a house.

Why do you need to warm the blind area?

There is opinion that it is enough to warm only the foundation. Consider that the option is more acceptable due to lower material costs.

In many climatic zones of Russia, the soil during the winter period freezes to a sufficiently decent depth. As a result, the walls are frozen at the base of the house, the foundation. This leads to a decrease in temperature inside the structure, which significantly increases the heat loss.

A warm blind area around the house allows the earth to keep its temperature warmer over the summer. As a result, the foundation and walls of the basement store heat better. The real facts confirm that after warming the blind area around an unheated house in the winter time, the temperature inside it rises by about 60C. Consequently, one-time costs for the construction of a warm blind area will save on heating the house for many years.

A warm blind area is an adjacent walkway, the width of which should ideally reach 1.5 m. It performs the following functions:

• allows moisture to flow away from the base of the building;
• acts as a walkway along the walls;
• reduces the heat output through the underground part of the building.

The owners of private houses note the negative facts that are caused by the absence of insulation. Approximately five years after the start of the construction of the house, there is a gradual extrusion, destruction of the foundation. Therefore, blind area can significantly extend the life of the structure.

You can learn more about the need for a blind area of ​​the house and its various features from the video:

Choice of materials

Choice of exterior coatings It is produced depending on the operational properties of the material and the design preferences of the owner. The most popular coating options are:

• asphalt;
• concrete;
• special pavement tiles;
• natural a rock.

On our site you can find contacts of construction companies that offer home insulation services. Directly to communicate with representatives, you can visit the exhibition of houses "Low-rise Country".

The insulated blind area around the house, unlike normal, lightweight version, involves the use of additional insulation. The quality and performance characteristics of a blind area of ​​this kind depend on the choice of materials that should have:

1. The required thermal insulation properties with a long service life.
2. Increased strength characteristics, resistance to moisture, various living organisms.

Not all materials for insulation meet similar requirements. The following types are most commonly used:

• expanded clay;
• foam;
• polyurethane foam;
• polystyrene foam.

The listed materials are in various degrees suitable for performing such work.

Expanded clay

It is a rounded sintered clay granule, characterized by a low specific gravity. Thermal insulation qualities correspond to a high level.

Insulation with expanded clay is the most profitable option in terms of material costs. The only drawback of the material is that it is quickly impregnated with moisture, so work is required to be done with an additional layer of high-quality waterproofing material. The thickness of the expanded clay layer in the blind area must be at least 50 cm.

Expanded clay is sold in packaged form or in bulk.

Polyfoam

The material is used, as a rule, during independent insulation work. This is a very easy, inexpensive, widely available option. Its disadvantages:

• at very low temperatures it becomes very fragile and quickly collapses;
• suitable for rodents;
• absorbs water.

Professionals do not recommend using foam in works, especially for installing it in the ground. When choosing foam insulation as a heater, it is always used at the same time as high-quality waterproofing.

It might be interesting! In the article on the following link read about the paving slab.

Polyurethane

Effective insulator, used for insulation of all parts of the building. Contained in cylinders under pressure, applied to the surface by spraying.

In the presence of certain devices suitable for the blind area, made with his own hands.

Penoplex

Extruded foam polystyrene, or expanded polystyrene, is produced in the form of slabs of standard sizes, is the most expensive, but also better material. The most suitable for the properties, the most convenient option for the construction of a warm blind area around the house. The joining of the plates is carried out by the groove-ridge method, which ensures the maximum tight fit of the edges. It has the following advantages over other types of materials:

1. Moisture resistance.
2. High elasticity, ability to withstand substantial loads.
3. Low weight.
4. Resistance to sudden temperature changes, as well as significant negative and positive temperatures.
5. Ecological safety.

The correct material for warming the foundation and blind area provides protection of the underground part of the house from freezing.

Features of the construction of a blind area

If you wish, you can build a warm blind area around the house with your own hands. The main thing is to understand how to warm the blind area around the house, and in a certain sequence to perform all the steps. However, for an excellent result that you can be satisfied with for many years, you should contact the experts. It is necessary to take into account, the work will require considerable physical effort.

There are several types of blind area. Rigid construction involves the implementation of the upper, outer layer of concreting or asphalting. The concrete mix is ​​poured on the reinforced lattice superimposed on successive layers of waterproofing materials, sand, gravel and insulation. Reinforcement provides resistance to soil movement. Pouring a concrete screed along the entire perimeter of the house is always done at a time. This is the main condition for obtaining a reliable, unified design. Interruptions in the pouring process allow voids to form, which are then filled with water. At negative temperatures, the water freezes, the concrete cracks and collapses.

Soft construction is a more reliable variant of warming the socle and foundation of a building built on mobile soil. Such an erection is resistant to ground layer fluctuations.
As a heater choose any of the above materials. It should be noted that to work with polyurethane foam requires special expensive equipment.

When a warm blind area is constructed around a house, all stages are carried out sequentially according to a proven method. When constructing a blind area, it is necessary to pay attention to significant nuances:

1. If the soil is clay, it is enough to make a trench 45 cm deep. In loose soil - not less than 60 cm.
2. Earthen is built in loose soil the lock, its thickness depends on the quality of the soil. That's right, if the lock is made with a slight bias from the house.
3. The main purpose of the sand is to make the site for laying insulation more even, so its amount can be minimized. High-quality leveling of the surface is achieved using a vibrating plate.
4. Instead of pure sand, it is better to use its mixture with loam. The degree of water resistance of this composition is much higher.
5. The thickness of the insulation on the blind area and the foundation must be sufficient to retain the heat of the earth. In central Russia, the insulation thickness is not less than 10 cm, on the foundation - 5 cm.
6. The height of the blind area at the base of the house relative to the surface of the ground is 30 cm. This will ensure that water flows from the house when it rains.

When choosing a soft blind area, road tile or stone is laid.

It might be interesting! In the article on the following link read about the blind area of ​​the foundation.

Conclusion

Only a correctly mounted blind area gives a long-term positive effect.

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