Main Frequently asked questions How to reduce heat loss in a private house?

Як розрахувати тепловтрати будівлі

As the cost of boiler fuel has risen, many private homeowners have begun to think about reducing heat loss. There can be several reasons for heat loss. Some of them can be completely eliminated, while others can be significantly minimized.

heat loss at home

The main causes of heat loss in the house

There are several reasons for the heat loss of a room:

    Through the walls. Thus, up to 30-40% of heat can escape from the house. And if the house has construction, structural or other defects, this number can be even higher.
  1. Through the foundation.
  2. Due to poor quality wall insulation. Even if there is thermal insulation, it may not work efficiently. This may be due to the use of low-quality materials, violation of installation technology or joint sealing.
  3. Due to poor roof insulation. Roof insulation is an important point at the stage of building a house. If you choose an insufficient thickness of the insulation layer, lay it incorrectly, or close the joints loosely, heat can escape.
  4. Due to inefficient operation of radiators. Sometimes radiators are installed incorrectly, as a result of which they heat the outer surface of the wall, which increases heat loss through the walls.
  5. Due to the use of low-quality double-glazed windows.
Heat loss through windowsWindows consist of several parts: frame, double-glazed windows, fittings and impost. Most of the construction is occupied by a double-glazed window, and it is this window that most often causes heat loss. On average, the figures are up to 10% of heat leakage from the room.

How to reduce heat loss through windows? To reduce thermal conductivity:

    fill them with inert gas;
  • use special energy-saving technologies;
  • complicate the design by increasing the number of cameras.
To avoid heat loss through windows, it is necessary to choose high-quality and reliable window structures from trusted manufacturers.

calculation of heat loss at home

Heat loss through walls

Most heat loss through walls occurs through concrete lintels, building corners, and structural joints. Insulation helps to solve the problem. Most often, it is carried out outside the building. In this way, you can not only save free space inside the building, but also shift the dew point.

If the insulation is done correctly, even at -25 degrees and no heating inside, the room temperature will drop by no more than 1 degree.

Heat loss through the floor

Heat loss through the floor and foundation is about 10%. If the house has a basement, this figure can be even higher. To prevent heat from leaving the room through the floor, you need to:

    Use special protection (damper tape) around the perimeter of the building.When constructing a warm floor, the distance between the outer wall and the heating circuit should be more than 10 cm.
  1. Do not use expanded clay and plasticizers when making the screed. They increase the heat transfer of the room.
Heat loss through the roofHeat loss through the ceiling can reach 15%. The main reasons can be:

    Damage to the integrity of the roof;
  • Lack of vapor barrier;
  • incorrect installation of insulation or its damage;
  • deformation of the roof as a result of building shrinkage;
  • use of steel elements at the border of cold and heat.
To avoid heat loss through the roof, it is necessary:

    Use mineral or stone wool for insulation. In this case, it is necessary that the board has a layer of aluminum foil on the inside.
  1. At the design stage of the building, care should be taken to reduce the number of external walls and corner rooms. Numerous protruding elements can also form a kind of cold bridges.
Percentage of heat loss through different parts of the house

To avoid high heat losses in a private house and save on its heating, it is necessary to properly insulate it. When constructing an insulating layer that will keep the house warm, it is important to choose only high-quality, durable and environmentally friendly materials.

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