Than to warm the wall outside

Despite what material is used as a heat insulator, any of the above options cope with its main task – insulation of the room. In addition, the outer insulation allows you to keep warm and protect the surface from moisture. About how to insulate the walls in a private house outside, tell step by step instructions and practical recommendations of experts.

  Than to warm the wall outside

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Warming the walls outside the house or apartment – the types and choice of insulation, do-it-yourself installation with video

The facade of residential buildings can not always withstand the winter frosts and piercing winds, because of which there is a cold inside the room. Warming the house outside will help protect the building from moisture, keeping the hot air in the room. In the article, you will learn what wall insulation is outside, how to raise the temperature inside a wooden house, and what is the difference between thermal insulation with mineral wool and foam.

What is wall insulation

A common method of energy saving is insulation – heat insulation for walls outside or inside the building, performed by special materials. Having warmed the facade of the apartment, you will get rid of the fungus, increase protection against noise, adjust thermal regulation – in the summer it will be cool in the room and warm in the winter. Insulation not only becomes a barrier between cold air and the internal microclimate of the dwelling, but also protects the building from moisture and sun, increasing its service life.

Ways of wall insulation outside

There are internal and external insulation of the walls of the house. The second type of thermal insulation is more efficient than the first because it does not reduce the area of ​​the room, removes condensate from the internal walls, and retains heat longer. There are four ways of facade insulation:

  1. facing – the method combining thermal insulation with decorative finishing;
  2. hinged – an expensive method that uses insulated steel sheet construction and a lining layer (plastic siding, wooden paneling, blockhouse);
  3. “Wet” – a method that believes in fixing the foam on the facade with glue, applying a grid, finishing primer and plaster;
  4. spraying of liquid insulation – polyurethane foam is sprayed on the facade, it is applied to a decorative coating or hinged panels.

Home insulation

Up to 50% of household heat goes through the wall façade, so home insulation is a necessary procedure for those who want to maintain a comfortable microclimate in their homes and save on electricity. Choosing insulation for the walls of the house from the outside, you should focus on the wall material, since different insulation technologies are used for concrete, brick, wooden and block structures. To conduct thermal insulation of a private house is cheaper than an apartment in a high-rise building.

Warming of apartments

If you live in an apartment building with a central heating system, insulating the apartment from the outside is the best option to help avoid additional costs for maintaining a comfortable temperature in the room with electricity. Having warmed the apartment, it is possible to solve a problem of sealing of seams in panel skyscrapers. Not all the inhabitants of a multi-storey building agree to insulate their homes, so often apartments are insulated to a point, which can lead to the destruction of the capital wall at the joints with the warmed surface.

Insulation for walls

It is necessary to choose the right materials for wall insulation outside, considering what the building is built from, how many floors there are, what climatic features of the area. The microclimate of the room completely depends on the choice of materials and quality of installation. Insulators are distinguished by the following criteria:

  • thermal conductivity;
  • durability;
  • fire resistance;
  • sound insulation;
  • airtightness;
  • water tightness;
  • environmental safety;
  • biostability

External insulation gives the desired result only if the heat-insulating materials fit snugly to the frame of the room, without air gaps. There are such types of insulation for walls outside:

  • Styrofoam;
  • mineral wool;
  • polystyrene foam;
  • polyurethane foam;
  • basalt slabs;
  • cellulose.

Thermal insulation foam

More and more popularity is gaining wall insulation foam. This material is easy, inexpensive, easy to work. The obvious advantages of foam plastic – moisture resistance, high sound insulation, excellent thermal insulation properties. The disadvantages of the material is the ability to ignite with the release of toxic substances, fragility, poor air permeability. Before installation, you need to draw the horizontal lines of the working surface, which will become the lower and upper edges of the insulation placement. The foam is fixed on a special adhesive solution.

Mineral wool insulation

A common method of thermal insulation is wall insulation with mineral wool. This is a fibrous material made from mineral raw materials, non-combustible, well breathable. Minvat suitable for installation on building structures of all kinds. The material is resistant to caustic substances, but absorbs water, so it needs a special waterproofing system. Mineral wool has a long service life – up to 70 years.

Polystyrene insulation

One of the best methods of thermal insulation is considered to be the insulation of a building from the outside with extruded polystyrene foam, the second name of which is “penoplex”. The material is slightly denser foam, less flammable, durable. Polystyrene foam is waterproof, resistant to deformation. One of the downsides is poor sound insulation. Penoplex is available in the form of plates that need to be fixed without gaps in order to protect the insulation from damage by rodents.

Wall insulation with polyurethane foam

Thermal insulation of the house outside with polyurethane foam is carried out by spraying the material on the prepared facade. The use of this substance as a heater has the following advantages:

  • the material, expanding, fills the gaps and shallow depressions;
  • polyurethane foam has good adhesion – perfectly adheres to the base, covering the surface without joints, in a continuous layer;
  • the substance becomes durable after hardening;
  • It has a high moisture resistance;
  • polyurethane foam serves as an excellent sound insulator.

Warming basalt slabs

Reliable insulation of the external walls of the house is provided by environmentally friendly basalt slabs made of mineral wool. The material does not ignite, has excellent wind and cold resistance abilities, does not accumulate moisture. The implementation of thermal insulation basalt plates allows for virtually any decoration of the facade. Installation of the material has a simple technology, so you can do it yourself. The outer thickness of the material is deceptive – you can even cut it with a kitchen knife.

How to insulate a house outside and what

External wall insulation will significantly reduce heat loss indoors. The choice of materials and insulation technology depends on the specific conditions – the house is made of brick or wood, the attic or basement will be insulated. Warming the facade correctly, you will make your house warm, protect the room from the formation of fungus, mold, dampness and isolate the dwelling from extraneous street noise.

How to insulate a wooden house outside and what

A wooden house has some advantages over stone housing or a brick building – the cost is lower, the environmental friendliness is higher. The main disadvantages are: low thermal conductivity of timber, small thickness of the walls and the presence of gaps between them. Warming of the walls of a wooden house can be done by constructing a hinged ventilation facade with a mineral wool, spraying polyurethane or covering the facade with polystyrene foam. Warming a country house made of wood, you need to take care of the vapor barrier and waterproofing. Insulation for exterior walls of the house will allow:

  • transform the facade;
  • protect the tree from the adverse effects of the environment;
  • improve heat efficiency;
  • save the interior space of rooms;
  • prevent the occurrence of dampness, mold;
  • keep away from cold winds.

Warming brick house outside with modern methods

In order to maintain a stable comfortable temperature in the house for a whole year, it is recommended to warm the brick walls outside. When choosing insulation, it is necessary to take into account the brick of which the building is constructed (hollow, solid, ceramic, silicate). Brick houses are often insulated with a hinged ventilated facade or a “wet” method. As a heater used mineral wool, foam, polystyrene foam.

Than to warm house walls outside cheap

Often, people wonder how cheap it is to warm a house outside. If you do not know the cheaper to warm the house outside, pay attention to the foam. This insulator may be slightly inferior to others in the ability of thermal insulation, however it copes well with the task of maintaining a comfortable temperature. The material has excellent thermal conductivity and moisture resistance, its main disadvantage is flammability. It is easy to work with polyfoam, so you can buy the material and try to insulate the dwellings on your own, saving also on paying for the work of the craftsmen.

Price for wall insulation outside

Home insulation is not a cheap pleasure. If you calculate the cost of heating the building with electricity, it becomes clear that the price of the service will soon pay for itself. The calculation of the cost of thermal insulation is carried out taking into account the selected materials, the complexity of the work, the size of the insulated area. Find out in the table below how much it costs to insulate a house outside in Moscow, and how the price of services differs in different construction companies.

Video: how to insulate walls

After reviewing the video below, you will learn how to insulate the facade, using foam, how to conduct external insulation basalt plates. The video will tell about the ways of home insulation from wood, will show the advantages and disadvantages of various heaters. You will see a demonstration of visual aids that will help insulate housing on their own, without resorting to the services of professionals.

Thermal insulation of the walls with foam plastic

Facade insulation with basalt slabs – video

How to warm a wooden house outside

How to insulate the wall of the house outside

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The better to warm the walls of the house outside

It often happens that a house built and equipped inside does not sufficiently cope with the protection of the interior from the cold. In order not to disturb the order inside the house, its external insulation is produced. This helps to improve the insulating properties of the walls, and also protects the main walls of the house from the negative impact of environmental factors such as sunlight, moisture, frost, etc. contributing to their destruction.

The choice of heat insulator

In this article we will consider the better to warm the walls of the house outside.
In the modern market of thermal insulation materials, a rather wide range of heat insulators is presented. Each of them differs from each other in such indicators as the degree of steam and heat insulation, as well as the coefficients of moisture resistance.

We will try to understand the variety of the proposed materials. The following insulators can be used as external insulators:

  • polyfoam (or polystyrene foam, its modern relative);
  • extruded polystyrene foam (EPS);
  • polyurethane foam;
  • minwat;
  • cellulose insulation;
  • basalt slabs.

When choosing insulation, first of all, pay attention to the expected effect, i.e. on the planned degree of increase in the thermal insulation coefficient of the wall. Experts will help you calculate it. They also tell the thickness of a heat insulator, which will achieve its goal. And at this stage you have to make a decision on the choice of thermal insulation material.

But remember that to install a thick layer of insulation (or in several layers) is technically and economically unprofitable, and therefore choose a heat insulator with a suitable degree of insulation, and do not try to achieve the insulation effect by increasing the thickness of the insulation layer.

The stage of preparing the walls for insulation

On whatever type of insulation you would not stop, first of all, you need to prepare the walls of your house for insulation.

For this you need:

  1. Remove all surface cladding (plaster, paint, etc.).
  2. Pay attention to the evenness of the walls and, if necessary, align them with puttying or cutting off excess.
  3. The walls should be ground with a deep penetrating primer. This will create an extra protective layer of the wall.

After preparing the surface of the wall proceed to the installation of beacon guides. They are necessary in order to fight off the smooth edge of the insulating layer. These guides are plumbs, attached at the top of the wall on the anchor and lowered down to the base of the building.

How to insulate the walls of a brick house outside

For brick houses, polystyrene foam, polystyrene foam, mineral wool, multilayer heat panels or EPPS are most often used as insulation. Let us dwell on the intricacies of warming a brick wall with the help of the most affordable, but effective thermal insulator, foam plastic.

After the preparatory work described above, the sheets of foam are fastened to the wall of the house with a special adhesive solution.

This type of attachment is also duplicated by dowel. Dowel-nails drive in the corners of the sheet and in its center. The gap between the sheets of foam is insulated with a special tape. The overlying rows of foam are laid out in such a way that the sheets are offset from the previous row.

After gluing all the rows of the foam, it is left to dry, after which the plastic mesh is mounted on top of the insulation. It performs a reinforcing function during the subsequent application of cement mortar. After the cement is completely dry, you can finish the wall: plaster it or paint it.

How to insulate the walls of the panel house outside

Often, not only private, but panel apartment buildings require external insulation. In this case, most often turn to specialists, because insulation can be associated with work at a considerable height, and here you can not do without the skills of industrial mountaineering.

If your apartment is located on the ground floor, then the external insulation of your apartment can be done with your own hands.
To do this, first carefully cleaned, and then close up the seams between the panels of the house. Then, if necessary, align the walls and only then proceed to the installation of insulation sheets.

As insulators can be used the same materials as in the insulation of stone walls. But often preference is given polystyrene foam or foam. The technology of mounting foam sheets is described by us above, and therefore we will not dwell on it in detail.
Decorative plastering is used to finish the wall.

Sources:, sten-snaruzhi.html,

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