External wall insulation of the house according to all the rules

Gusevsky Andrey Anatolyevich

Insulation of the walls of a private house

Wall insulation A country house is often used to better maintain heat indoors. The insulation layer is the missing barrier between the cold air from outside the house and the internal microclimate inside the house.

In this case, the main wall of the building will be additionally protected from moisture and exposure to sunlight, which will increase its life. The article will tell you how to make a building insulation with your own hands.

Types and features of insulation of external walls

The main feature of outdoor types of insulation, in addition to low thermal conductivity, is resistance to environmental influences: increased humidity, rain, snow, exposure to sunlight, high and low temperatures. New technologies in warming the walls of houses create an insulating “pie”.

In his scheme - the device of various layers, each of them solves its own problem:

• Thermal insulation.
• Waterproofing.
• Air gap.

An important role in this case is the proper placement of the layers.

As a result, insulation acquires:

• Durability.
• Efficiency.
• Convenience.
• Low cost.
• No dampness problems.
• Mold protection.
• Protection against rodents and insects.

The most popular types of material for external insulation of houses are:

• Styrofoam or Styrofoam (cm.How is the insulation of the walls with polystyrene foam done outside) It is a porous material that is obtained by foaming, consists of fine-meshed granules that are well caked together. Polyfoam is made of different density, the higher it is, the material will be more durable. Its advantages:

1. durability, up to 60 years;
2. resistance to moisture;
3. resistance to bacteria;
4. maintains temperature differences in the range from (-40 ° C) to (+ 40 ° C);
5. not a high price.

Foam insulation at home

• Warm plaster. This type of building insulation, is a cement, gypsum or lime cement mortar with different fillers, which give it thermal insulation properties. As part of this material:

1. perlite sand;
2. polystyrene foam;
3. sawdust;
4. perlite;
5. vermiculite.

Advantages of insulation are:

1. fire safety;
2. environmental friendliness and safety for humans;
3. increased thermal insulation properties;
4. high practicality;
5. multifunctionality;
6. not high cost.

• Basalt insulation of the walls of houses. Can be used:

1. for external and internal insulation of the building;
2. for warming attics, loggias and balconies.

The material contains basalt fiber, made from natural minerals by melting and subsequent processing into fiber. Its main characteristics:

1. increased porosity, up to 70%, which allows for low thermal conductivity;
2. high temperature resistance;
3. chemical resistance;
4. vapor permeability, guaranteeing the dryness of the material even with a sufficiently high humidity in the atmosphere or room;
5. high strength;
6. it turns out an environmentally friendly wall of the house with insulation;
7. lightness of material.

How to insulate exterior walls with isolon

Isolon for thermal insulation of building walls

Isolon is a material related to reflective heat insulation materials. In this case, heat is a special type of radiation that can be well reflected from some surfaces.

Isolon does not allow thermal energy to go outside, but reflects it back into the room.Material is produced in the form of large rolls.

Tip: Before making insulation of the walls of the house with Isolon, it is necessary to correctly calculate the amount of material.

An example of an estimate for insulating a house wall with an isolon can be seen in the video in this article. For high-quality wall insulation with isolon, you need to purchase an additional aluminum adhesive tape to connect the joints of the insulation so that it is solid, and its reflectivity is improved.

The material is placed:

• Between the outer wall and the finishing layer.
• Between two walls.

In both cases, the thermal energy in the room:

• Will be reflected.
• Outside, cold air will never enter a building.

This is due to the fact that the insulation from the isolon is foiled on both sides, but more often in practice a material having one-sided foiling is used.

Tip: Before choosing one of the options, you need to decide on the features of the design of the house, each of the options for installing insulation material is justified for a certain type of building.

To achieve the best result, a free space is arranged between the insulation and the wall, with a thickness of about 15 - 22 millimeters. To do this, rails of the same thickness are packed on the wall surface. The slats are staggered in increments of not more than one meter, each part should be no more than 1.5 meters long.

Wherein:

• The material is fastened with a stapler or small nails.

Tip: When installing the isolon, it is necessary to monitor the reliability of bonding the material with aluminum tape.

• On top of the insulation, another rack layer is applied, on which the finishing coat will be attached.

A qualitative result when warming the exterior walls of the house with an isolon will be only when creating air gaps that contribute to thermal reflection, which will not allow street cold air to enter the room. The insulation of the walls of a country house is best done with foil insulator on both sides. Such material does not absorb moisture, it is good to use it in the temperature range from (-65 ° C) to (+ 120 ° C).

How to insulate walls in a dry way

This method of insulation is called the ventilation unit. His example is shown in the photo.

Insulation of the walls of the facade of the house "dry way"

The instruction for the construction of the “dry method” offers:

• A grid of boards, wooden beams or a galvanized metal profile is arranged on the wall.
• Insulation is laid.
• On top of the insulation, a moisture-proof membrane is attached to the elements of the crate.
• On the membrane is superimposed and attached to the crate.
• Decorative trim is fixed, usually a siding (see How to finish a house with siding: attractiveness and economy).

The use of a counter-lattice between the moisture-proof membrane and the outer casing allows you to get a gap where the air that ventilates this space circulates and removes moisture from it.

Advantages of the dry method of wall insulation:

• When performing insulation, great skill is not required.
• No need for large physical costs.
• Even very curved walls can be insulated with material. The curvature is easily leveled by a crate device that can be perfectly flat.
• Work can be done at any temperature, throughout the year, which allows the absence of wet processes.
• You can perform insulation with mineral wool. This will allow the walls to breathe.

Tip: Mineral wool should be placed in the wooden crate, not foam, which can cause wood to rot.

• In the future, when using the dry method, the walls of the house can be insulated with any material.

Which one to choose a heater for your home, everyone decides for himself. When performing all the work on their own, an important factor is the maximum ease of installation of insulation.The best options for this are the use of foil penofol or expanded polystyrene foam.