Insulation of a log house from the outside is necessary not only to ensure an optimal climate inside the rooms, but also to protect wooden walls from the negative effects of the external environment. However, to ensure high-quality thermal insulation, it is not enough just to choose a material that will have a minimum coefficient of thermal conductivity, but also have natural properties. Is it difficult to insulate a house from a bar outside or choose an internal method?

Insulation of the facade of a log house from the outside has a number of the following advantages:

• when carrying out external work, uncomfortable conditions are not created for the residents of the house;
• the interior space of the premises is preserved;
• additional protection of load-bearing structures from negative external factors is provided;
• the ability to easily change the cladding of the facade of the house;
• the service life of the building is increased;
• the dew point is outside the main structures, so the problems of dampness or the appearance of condensation are not terrible;
• the natural properties of wood are preserved due to optimal air exchange with the external environment.

The disadvantages of this insulation technology include:

• work is permissible only under optimal climatic conditions: in the absence of precipitation and positive ambient temperatures;
• the need for external cladding or finishing, which can cause significant financial costs;
• it is possible to insulate the facade of the building only after the period of shrinkage of the timber has passed, namely after 1-2 years after its construction.

Types of materials for insulation

Insulation of the walls of a log house from the outside can be performed using one of the following thermal insulation materials:

• foam;
• mineral wool;
• extruded polystyrene foam.

Styrofoam

External insulation of a house from a bar with foam is the cheapest way of thermal insulation. The material has a thermal conductivity coefficient of 0.03-0.04 W / mK. It has increased moisture resistance (maximum absorption is up to 1% of the total volume), so mold and mildew do not form on it.

The service life of the foam is more than 20 years, so maintenance of the insulated layer is not required during this time. During installation, no difficulties or problems arise either, since a minimum amount of tools is used, the installation is performed quickly and efficiently.

Other advantages of foam include:

• optimal level of sound insulation;
• minimum loads on supporting structures, compared to other materials;
• ease of sheet processing;
• the possibility of applying a finishing layer directly to the insulation.

Mineral wool

Insulation of a log house outside with mineral wool is the most common method of thermal insulation. The fibrous material has a natural composition, so it can come into contact with wood without any problems. Due to the softness of the mats, they can be tightly laid on surfaces of any shape without air gaps.

The thermal conductivity coefficient of mineral wool is 0.077-0.12 W / m · K, depending on the type of fibers and the thickness of the slabs or rolls. Density varies from 10 to 100 kg / m 3. The minimum service life is 20 years or more.

Insulation of a log house from the outside with stone wool allows you to get the following advantages:

• high level of sound insulation;
• increased fire resistance;
• not prone to damage by rodents or pests;
• optimal vapor permeability and air exchange.

The use of extruded polystyrene foam (EPS) is the most profitable and expensive, since it easily tolerates conditions of high humidity, external mechanical influences, contact with chemically active substances. Its service life is up to 100 years, that is, it has no analogues today.

The thermal conductivity coefficient of EPS is on average 0.03 W / m · K. The level of moisture absorption is up to 0.4% of the total volume in 30 days. Unlike foam, EPSP has a para-permeability of 0.05 mg / m · Pa · h and a homogeneous structure (granules with a size of 0.2 mm).

The density of the slabs varies from 25 to 45 kg / m 3, due to which it is possible to accurately calculate the load on the walls. Compressive strength up to 0.16 MPa, and flexural strength up to 0.25 MPa.

The main advantages of EPS are:

• resistance to sudden temperature changes;
• environmental friendliness of the composition;
• resistance to the appearance of fungus and mold;
• chemical resistance.

Material selection criteria and requirements for the technology of the insulation process

Correct insulation of a log house from the outside can be performed with materials that meet the following requirements:

• optimal ratio of material thickness and strength, minimum coefficient of thermal conductivity;
• moisture resistance;
• incombustibility;
• so that the weight of the insulation is supported by the supporting structures;
• ease of installation;
• simplicity in operation and undemanding maintenance.

Requirements for insulation technology are as follows:

• wood must be protected from external negative factors: temperature, moisture;
• insulating sheathing must be strong enough, not shrink and withstand sudden temperature changes;
• all layers of the material should not accumulate moisture, that is, be well ventilated, or have increased waterproofing properties;
• the technological conditions of installation should allow implementing a specific method of insulation: evenness of the surface, the absence of obvious or hidden defects, the possibility of mounting guides, etc.

The operating conditions of the insulation also play an important role:

• temperature range in a particular area;
• building features: fire hazard, the possibility of contact with various chemically active substances, the likelihood of mechanical damage;
• the minimum duration of operation of the insulation under specific conditions;
• the need for maintenance.

Therefore, when choosing a material, it is important to take into account all influencing factors. Only in this case it is possible to ensure the maximum service life and the absence of problems with the timber. It is also worth paying attention to the additional properties of the insulation, which will save on laying sound or waterproofing.

Features of preparing the walls of the house for insulation

The technology of insulating a log house from the outside requires the following conditions and preparatory work to be met:

• a wooden house must go through a period of shrinkage in the ground after erection;
• wood must be impregnated with antiseptics and protective impregnations that reduce flammability and moisture absorption;
• all cracks and defects must be repaired, if necessary, several logs must be replaced;
• it is necessary to consider how the materials will interact with the timber in order to ensure the maximum possible service life.

Options for external insulation of a log house

Do-it-yourself insulation of a log house from the outside can be done by one of the following methods:

• using a hinged ventilated facade;
• by spraying a polyurethane layer;
• sheathe with foam.

Installation of a hinged ventilated facade

Installation of a ventilated facade provides for the installation of a batten with laying in the space between the guides of the insulation and subsequent cladding with cladding panels. Mineral wool slabs are used as heat-insulating material.

The main advantages of this technology are:

• increasing the level of hydro and sound insulation of walls;
• ease of installation;
• minimum requirements for surface evenness;
• a wide selection of finishing materials;
• displacement of the dew point from the supporting structure into the insulating layers;
• ease of maintenance and repair of the hinged frame.

The implementation of the method is as follows:

1. Preparatory work is being carried out: wood is treated with impregnations, defects are removed, etc.
2. A wooden or metal crate is mounted along the width of the insulation.
3. A waterproofing layer is laid.
4. Insulation is mounted between the guides.
5. The insulation is sheathed with a windproof membrane.
6. The counter lattice is laid along the slats of the main lathing.
7. Sheathing with boards or decorative panels is carried out.

Insulation for siding

Thermal insulation of a log house from the outside for siding is similar to the technology of thermal insulation using the curtain facade method. However, there are a number of features:

• as a heater, you can use mineral wool or EPS;
• joints of thermal insulation and guides are sealed with polyurethane foam;
• when using mineral wool, a diffusion membrane is used as a waterproofing;
• when installing EPS, the siding can be installed directly on the main lathing, since the installation of waterproofing is not required.

Spraying polyurethane layer

Polyurethane spraying is an innovative method, the most effective and expensive among all existing ones. It is with its help that you can form a sealed seamless layer that is highly resistant to negative external influences: moisture, sudden temperature changes, pests.

The advantages of this technology are:

• maximum protection of the timber from rotting;
• improving the fire resistance of walls;
• increased adhesion of the applied layer to various building materials;
• no need to align the base;
• no fasteners needed;
• increases sound insulation;
• high layer uniformity.

However, there are a number of negative points:

• the complexity of applying a uniform layer;
• the need to use special equipment;
• high cost of polyurethane foam;
• instability to direct ultraviolet rays.

The method is implemented like this:

1. The surface of the walls is cleaned from dirt and various stains.
2. Wood is treated with antiseptics and other protective compounds.
3. Wooden guides are installed.
4. Spraying of polyurethane foam is in progress. If necessary, in two layers.
5. The cladding is mounted.

Foam insulation

Thermal insulation of walls with foam plastic is very profitable and inexpensive, since the material is relatively cheap, easy to install and unpretentious in operation. In addition, the laying of the lathing is not required, the finishing can be done directly on the insulation, with sharp temperature fluctuations it does not lose its properties.

Polyfoam is a combustible material, therefore, it is imperative to treat wood with impregnations that increase the ignition temperature or make it non-flammable (fire retardants).

The insulation method is implemented as follows:

1. A vertical lathing made of wooden beams is mounted to the walls. Their thickness is equal to the thickness of the insulation, and the fastening step is equal to the width of the plates.
2. Inside the frame, foam sheets are mounted end-to-end. Seams are glued with sealant or thermal insulation tape. Fastening of the foam is carried out on dowels, called "umbrellas", or on an adhesive base.
3. On top of the foam, a diffusion membrane is laid end-to-end. All joints are glued with special tape. The membrane is attached to the staples using a stapler.
4. The facing layer is mounted.

At the preparatory stage of installing the foam, it is important to carefully align the walls, since at the slightest bends (more than 1.5 mm per linear meter) cracks may appear in the sheets. In addition, this will save on the consumption of the plaster layer.

For plastering the walls, it is not required to install the lathing, since the load of the decorative layer is minimal. However, there is one important condition - it is necessary to lay the reinforcing layer in order to increase the contact area of ​​the outer layer and the mechanical strength.

To make a house from a bar cozy, warm and inexpensive to maintain, to reduce heating costs, the methods of outdoor insulation are the most profitable. Their implementation is relatively simple, and there are a lot of advantages: reducing heating costs, protecting load-bearing structures from temperature extremes, pests, mechanical, physical and chemical influences.

When choosing materials for insulation, it is necessary to be guided by the requirements for thermal insulation and the general budget for all stages of work.

Among the advantages of houses made of timber, one can single out the naturalness of the wall material, environmental friendliness and good ventilation. Despite the advantages, over time, the thermal conductivity of such buildings decreases, more and more gaps form in the walls, and drafts begin to appear. Warm air quickly leaves the home. To solve this problem, additional insulation of the house from a bar is necessary.

You need to insulate your home with a non-combustible, environmentally friendly and durable material. To choose the right one, you should familiarize yourself with the features of each insulation. You can do the work qualitatively only after reading the main points regarding insulation.

The first step is always to prepare the surface for further work. First, the walls need to be assessed, to check how well all the previous activities were carried out. Small cracks and defects may form at the joints. It is better to fix all this at the first stage. After construction, the house will sit down, because the lack of caulking, small cracks are closed.

The initial stage includes the removal of all extraneous elements that may interfere with the insulation of a wooden house from a bar. If the work is done inside, all hinged structures are removed, the surface is freed. Outdoor activities include removing all nearby plantings that touch the home. In both cases, dust and dirt are removed.

After cleaning the walls, they are treated with a fire retardant solution and an antiseptic. Smear several times, use a roller for this. You can get to hard-to-reach places with a brush. After the walls have dried, their condition is assessed, the need for additional caulking. Cracks are sealed with jute fiber and a chisel.

Important! No heat insulator will make a house better if there are large cracks and chips in it. Work does not begin until they are completely eliminated.

Insulation of walls in a log house

After carrying out the above measures, you can proceed to the insulation of the walls. The material is selected, the possibility of carrying out work outside and inside is assessed. The best option is being considered. To choose the right one, you need to familiarize yourself with the pros and cons of each method.

Advantages and disadvantages of internal and external wall insulation

The first advantage of internal insulation is its low cost. It does not require special devices to climb to a great height. The term of work is much shorter. You can make the walls much smoother. You can perform the necessary actions at any time of the year.

But there are disadvantages:

• Living space has to be sacrificed if bulky insulation material is used.
• The dew point is shifted, moisture condensation takes place in a different plane. If the work is done incorrectly, this can lead to freezing of the walls, or their constant moisture. The point offset will be inside the room. With external insulation - outward.
• There is a risk of mold formation, blackening of the walls.
• Slots, joints that are outside the house will still have to be repaired.

The main advantage of external insulation is a higher efficiency of work. The materials used will retain more heat. The dew point is shifted outward so that the walls will not become moldy. The usable volume of the room does not decrease. Disadvantages: high cost compared to the internal version of the work; seasonality and dependence on the weather.

The choice of material for external insulation of a house from a bar

For high-quality insulation, it is worth considering the features of each insulation. They differ in characteristics, service life, degree of environmental friendliness and installation features. The price of products varies greatly.

Mineral wool and its analogues

With the help of this insulation, you can carry out work inside and outside the house. The material is breathable, which is essential for wooden walls. The material is not destroyed by rodents, insects, mold does not grow on the surface.

In addition to those listed, there are advantages:

• relatively low thermal conductivity;
• high degree of sound insulation;
• ease;
• ease of work;
• low cost;
• ecological cleanliness.

The main disadvantage is the ability to accumulate moisture. If the cotton wool is wet, its performance drops significantly. It dries out for a long time, sometimes not completely. After that, the composition becomes heavy. If the fixation was not secure enough, it can shift downward under its own weight.

Insulation of the facade of a log house should only be carried out using the technology of a ventilated facade. Installation of a reliable vapor barrier is mandatory.

It is worth figuring out how to insulate a house from a bar in order to avoid typical mistakes during work. You can use foam for external and internal insulation. The advantages are low cost, poor thermal conductivity. Installation is simple and convenient. It has good hygroscopic properties.

Additional Information! When buying, you should pay attention to the tightness of the grains in the block. The higher the strength, the better the insulation performs its functions.

The main disadvantage is high flammability. This is especially important to consider when work is carried out in a wooden house. Birds and small rodents love to eat foam.

This insulation is similar in properties to the previous one. Differs in execution technology, due to which the operational characteristics increase significantly. The cost is also higher.

Advantages:

• high performance characteristics;
• does not accumulate moisture in the structure;
• not destroyed by rodents, mold;
• has high strength;
• the installation process is simple and fast.

Among the disadvantages are high cost. You can use not any, but only a certain adhesive composition for fixing to the walls. It is obligatory to install high-quality ventilation of the room, because the EPS does not allow air to pass through and the natural ventilation of a wooden house will be disrupted.

Foamed polyethylene

Foil-clad polyethylene can be wrapped with a protective membrane on one or both sides. It is used for insulation outside and inside the house. Usually it is used not as the main one, but as an additional insulation. Answering the question whether it is necessary to insulate a house from a bar of 200x200 mm, it is worth considering not the thickness of the walls, but how well they keep heat. Perhaps you need minimal insulation to create an ideal indoor climate.

Has advantages:

• low cost;
• ease of installation;
• hygroscopicity;
• high noise insulation;
• high performance characteristics.

Among the disadvantages are flexibility. Reliable adhesion to the surface will be required so as not to reduce the quality of the work performed. You can only glue with special compounds.

Sprayed polyurethane foam

In fact, the material is ordinary polyurethane foam. It is applied from a special container, and not with a gun. The positive is the possibility of insulation inside and outside the house. Moisture is not absorbed into the surface. Possesses high thermal insulation characteristics. The walls can be pre-cooked, it is enough to apply the composition to the cleaned surface and it will remain hanging until it hardens. No fasteners or lathing are required. The layer will be solid.

The disadvantage is the price of the insulation. It is much higher than the analogs. The work cannot be done without the use of special equipment. Further processing is required, since the composition is destroyed by the action of sunlight. It becomes fragile.

A composition is used for insulation from the outside of the objects. It does not react to negative environmental factors, is durable, does not require fastening to fasteners. The material is highly hydrophobic. Seamless connection can be made. No further refurbishment required. The material allows air to pass through well, therefore additional ventilation is not needed.

The service life declared by the manufacturers is 15-20 years, but after 5-7 years the composition loses about 30% of its thermal insulation characteristics.

Fire safety is low. To use it, you need special equipment, which is expensive.

Isoplat wind protection boards based on wood fiber

Such plates are quite popular in Europe.

They have the following advantages:

• provide high wind protection;
• high vapor permeability. It is advisable to use the material in places with a cool climate. In case of heat, it will interfere with normal ventilation of the premises;
• good thermal insulation properties. The indicator is higher than the level of basalt wool;
• high strength. The material adheres well to the surface of the house, but it is not easy to break it;
• reliability. The material does not lose its characteristics after some time of use. Properties are retained throughout the entire service life. Exposure to sunlight does not affect the quality of the insulation;
• high heat capacity.

The advantages of windbreak boards are obvious, but there are some disadvantages. Their cost is much higher than that of traditional heaters.... It is advisable to use them only in places with a cold climate, because they do not allow air to pass through well.

Folgizol

The material stands out among traditional insulation materials for its characteristics. It has a high degree of thermal insulation, noise insulation. In comparison, approximately 10 mm of foil insula provides the same heat retention as 45 mm of mineral wool or 150x150 mm of brick. Indicators of sound and vapor insulation are also at their best.

The composition weighs very little, its installation is convenient. It is elastic, it will be easy to close any bends of the walls. It is resistant to any chemical attack, protected from mold, fungus, and is not interesting to insects and rodents. The service life is 80 years, during which the performance characteristics will not decrease. No substances harmful to humans are used in production. No smell, toxicity.

The disadvantage is low vapor permeability. This is not very good for a wooden structure - the walls will stop breathing. It will not be possible to answer the question of how to insulate a log house with one sentence. There are many options, for everyone there is a different one.

SIP panels

The panels are perfect as a base for walls. In comparison, it would take 2.5 m of bricks to achieve the same heat loss as 15 cm panels.

Picture 8. Resistance to heat transfer of materials.

Other positive characteristics:

• high degree of sound insulation. The thickness of the material is small, but the penetration of noise from the street is almost completely eliminated;
• low material weight;
• high speed of construction. When using SIP panels, it will take 3 weeks to build a cottage with an area of ​​about 50 m 2.

The material is usually not used as insulation. You can use it to build a full-fledged home. Among the disadvantages are flammability, the presence of additives that are not considered environmentally friendly. The panels are capable of being attacked by rodents.

Mezhventsovy heaters

The correct choice of mezhventsovy heaters depends on the needs in each individual case.

You can identify important points to pay attention to:

• If the house is being built in the fall, jute is worth using. Synthetic materials are not used. There is almost no shrinkage of structures in winter, condensation forms. Therefore, the insulator must pass air well. Synthetics do not possess this property.
• If there are people with allergies in the family, it makes sense to purchase linen materials. They are not allergenic. Flax is not used in cool climates. For example, he will not be able to endure the Siberian winter.
• If it is not planned to produce external cladding in the house for a long time, it makes sense to use synthetic models of insulation. They do not deteriorate under the influence of active sunlight.

A good mezhventsovy insulation has a number of advantages:

• the same thickness over the entire surface;
• not exposed to rodents and insects;
• after fixing with logs, it does not fade;
• different thickness of products allows you to choose the optimal sample for each joint;
• insulators retain their positive characteristics regardless of the season.

The disadvantages of mezhventsovy heaters appear if the wrong composition is chosen. For example, when a product without pores is selected, and the wall stops letting in air, ventilation will be impaired. Any options are suitable for a wooden house, because the walls themselves allow air to pass through, the insulation will not be able to greatly limit this property.

Additional Information! It is advisable not to use mezhventsovy heaters as the main ones. If the dwelling loses a lot of heat, they can be used to achieve initial insulation. It is advisable to select other modern materials as the main ones.

Rules for external insulation of a wooden house

Any tree absorbs moisture. Even impregnation cannot completely eliminate the hygroscopicity of wood. If ventilation is normally arranged in the dwelling, then the moisture will quickly evaporate without negatively affecting the building, and a comfortable microclimate will remain. If the gas exchange process is disturbed, the tree swells, fungus and mold develop.

In order not to face the listed problems, you need to monitor compliance with the rules:

• do not insulate damp walls;
• use only vapor-permeable insulation;
• thermal insulation materials must necessarily be closed on both sides with waterproofing, if it is absent in the layer of the insulation itself;
• leave a gap between the final finish and the insulation.

If the walls after insulation are only planned to be painted, or only the seams are insulated, vapor-permeable paint or sealant is also chosen. You can use acrylic-based formulations. Before insulation, the surface should be well prepared, cleaned, repaired.

Additional Information! It is important to ensure that no woodworm beetles remain in the wall, which are capable of severely destroying a building. Under an additional layer, they will continue to destroy the structure, nothing will prevent them from multiplying. Over time, the wood will completely deteriorate and become unusable.

Hinged ventilated facade

They have a number of advantages. Among them, the absence of the possibility of dampness, a decrease in the amount of building materials, is distinguished. Building insulation is very effective. Any finishing work on top can be carried out, there are no restrictions. The building does not overheat in summer due to proper ventilation.

The downside is the need to inspect the supporting structures. The work must be carried out by specialists, it will be difficult to independently perform all the actions correctly.

If you decide to do the work yourself, proceed in the following sequence:

• Arrangement of the lathing. The bars are installed so that insulation materials are normally placed between them. The maximum thickness is considered to be 10 cm. The distance between them should not be more than 60 cm, although it should be calculated based on the size of the insulation. Secure with self-tapping screws.
• Insulation installation. It is advisable to use resilient slabs. The distance between the bars will be such that they fit snugly between the beams.
• Installation of wind protection. Attached to the bars with a stapler. Attach to the insulation with double-sided tape.
• Installation of the second lathing. Enough bars with dimensions of 5x5 cm. They are fixed on the wooden bars of the first crate.
• Installation of a block house, other materials for external cladding.
• Final surface treatment. Grinding, adjustment of all components is performed, removal of wood fibers. After completing this type of work, a layer of paint or varnish is applied.

Wooden houses are insulated with thermowood, block house, planken, wood-like porcelain stoneware.

Laying insulation under siding

The main thing is the absence of gaps between the material. Lay them evenly without bending. The material should not protrude and go beyond the boundaries of the bars. Initially, you need to prepare the surface: remove all elements that may interfere with the process: downpipes, lights, and more. Further, the surface is cleaned of dirt.

The frame that will hold the siding elements must be impregnated with an antiseptic. It is advisable to use wooden blocks rather than metal elements. The metal collects condensation, which will turn into ice in winter. Bars with a section of 50x50 mm are taken as standard.

Mineral wool, suitable as insulation, weighs a lot. It is fixed between the installed beams using dowels. On top of the insulation material, a film is installed that protects against steam from the inside and water from the outside. Secure with a stapler.

First, the lathing of the insulation is performed. The bars are arranged vertically in level. Insulation is laid inside, a counter crate is placed on top. Its pitch is 40-50 cm. The bars are vertical. The last action will create a ventilated gap between the sheets and fix the mineral wool sheets.

Polyurethane foam spraying method

For the installation of this type of insulation, special tools are used. The composition comes from 2 containers containing polyol and polyisocyanate. They mix in a spray bottle and hit the walls.

Installation is carried out in the following sequence:

• After preparatory work, a wooden crate is mounted. The distance is 30 cm.
• The space between the bars is filled with foam. Application is made from bottom to top.
• If you need to move to another location, the gun is disabled. If it is necessary to apply several layers, the next one is performed only after the previous one has solidified.
• The insulation should not protrude beyond the borders of the sheathing. Any irregularities after application are carefully removed with a knife.
• After the insulation hardens, the walls are covered with a reinforcing mesh.
• Finishing is in progress.

It is difficult to carry out work on your own, even if you have special equipment. Usually specialists are involved.

Internal insulation

Expanded clay or sand is used as the simplest materials for floor insulation in a wooden house. They are placed in a layer on top of the subfloor, which is used as an additional base. The surface is not exposed to fungi, microorganisms. The main disadvantage is the loss of hygroscopicity over time.

Insulation of floors

From modern materials for floor insulation, you can use mineral wool, ecowool, fiberglass, expanded polystyrene or penoplex and others. It is worth considering the pros and cons of each composition in order to make the right choice.

When insulating a floor in a house made of timber, it is important to take into account the purpose of the room, the average temperature index and humidity. Do not forget about the surface load.

The work is divided into stages:

• A rough floor is laid along the logs. The main advantage of the design is that no mechanical stress is applied to the insulation material. You can use any composition for insulation. Make from rough boards at least 25x150 mm in cross section. The tree must be treated with an antiseptic.
• Wooden logs should not reach the walls by about 3-4 cm. They can be placed on the foundation, wooden spacer or posts (depending on what is available). A roughing bar with a section of 50x50 mm is fixed to them and rough boards are nailed to it below. There should be no large gaps between them. Screws can be used for fastening.
• Insulation is laid. Glass, eco-, mineral wool or other heaters fit tightly on the wooden base between the logs. The remaining space is filled with polyurethane foam.
• A layer of waterproofing is laid. Wet rooms of the house are necessarily insulated, or in the case of hygroscopic compounds (fiberglass, mineral wool, ecowool). If sprayed insulation is used, the waterproofing does not need to be installed.

Waterproofing is found in the form of impregnation, paint or adhesive. Depending on the choice, it is fixed on the surface layer of the resulting cake.

• The vapor barrier is being laid. Overlap immediately on top of the previous layer. The edges protrude 10-15 cm beyond the borders and are glued to the logs. The joints are closed with metallized tape.
• The finishing floor is laid and the final finishing is carried out. It must be fixed at a distance of several cm from the draft. To do this, use boards 10-14 cm wide and 3-4 cm thick. At the bottom, they should have channels for natural ventilation.

Wall insulation

It is not worth insulating the walls in the house from the inside with materials that do not allow air to pass through: polystyrene, penoizol, extruded polystyrene foam. They are able to create a "greenhouse" effect. You will have to spend money on installing air conditioners to remove moisture from the walls. Use mineral wool optimally.

After the preparatory work, impregnation of the walls with an antiseptic solution, a wind and waterproofing layer is installed. It will prevent weathering and moisture penetration from the outside of the dwelling. It is better to use a vapor diffusion membrane for this.

The material will not allow the penetration of liquids, will not stop the movement of steam and air. The waterproofing layer is fixed to the walls with a construction stapler. The overlap at the joints is at least 10 cm and is glued with tape.

• A wooden frame is installed. The width between the posts is selected based on the width of the insulation. Make the distance 2 cm less than the slabs so that the material fits snugly.
• The frame is 2-3 cm thicker than the materials to ensure ventilation. Mineral wool or other substance is laid.
• For fastening, plastic dowels are used.

Answering the question of how to insulate a log house for winter living, it is worth considering the climatic conditions. Many heaters are suitable, which are attached according to the indicated scheme. At the end of the work, a vapor barrier layer is mounted. Typically, the membranes are secured with staples.

The last stage is finishing. The layer should not impede the passage of air currents through the surface. It is advisable not to use plastic options.

Roof insulation

Work in the attic is carried out in the following sequence:

• A vapor barrier is installed. The canvases are overlapped by 15-20 cm over the entire surface. They should be glued together with tape and fastened with staples to the beams. When using polyurethane foam or other similar formulations, this step is not necessary.
• Insulation is laid. If it is ecowool, the measures are carried out by spraying. In other cases, all boards are dismantled so that the material covers the entire surface of the attic space. When using mineral wool and similar substances, the styling should be tight.
• Waterproofing is being laid. Be sure to overlap, adjacent strips are connected with waterproof tape.
• Additional beams are being installed, on which the finishing coating is fixed.

Errors when insulating a house from a bar

Insulation of a log house from the inside is often carried out with errors, after which the material does not fulfill the task assigned to it.

The following typical deviations from the rules are common:

• Lack of control over the condition of the walls. Over time, traces of damage of various types remain on the wood. Before the start of insulation, after which there will be no access to the surface of the walls, it is necessary to complete all the indicated measures. Only then proceed to the next stage.
• Inattentive attitude to caulking the walls. Perhaps due to a couple of defects in this part, the house began to blow through. After correcting the problems associated with this item, the home becomes significantly warmer.
• Thermal insulation of a log house from the inside. If it is possible to carry out work outside, they should be done in this way.
• Wrong choice of thermal insulation material. Mineral wool, glass wool and polystyrene foam of any kind are ideal for wood.
• Improper storage of materials. The thermal insulation must be dry. Only then do the compounds perform the function completely.
• Wrong choice of materials. For vertical surfaces, rigid insulation is used, for floors and ceilings - soft counterparts.

In addition to the listed errors, there is an incorrect choice of insulation thickness. For a log house in central Russia, a couple of layers of materials 50 mm thick are enough, which are stacked one on top of the other. The above material will help you understand how to properly insulate a house from a bar.

The user opened the foundation a little, so as not to cut the extruded polystyrene foam, and the insulation plate was completely seated. Then he cleaned the foundation from dirt, drilled holes with a perforator, glued the thermal insulation onto cement-foam and fixed the slabs with dowel-mushrooms.

To reinforce the blind area, a masonry mesh made of wire with a diameter of 3 mm and a mesh size of 10x10 cm was laid out along the layer of thermal insulation. The reinforcing mesh was passed through temperature-compensating inserts - an ordinary board.

This article talks about.

Installation of metal siding and installation of a ventilated facade

The key feature of the hinged ventilation facade is the presence of a ventilation gap between the insulation (protected by a moisture and windproof membrane) and the external finish, for example, siding panels.

The gap (about 4-5 cm) allows steam and moisture to be freely removed (eroded) through the ventilation duct.

ZlojGenij

For the installation of a hinged ventilation facade, I chose a metal siding, a profileL-bar. It has its own editing subsystem. To save money, I decided to use the ceiling profile used for internal work on the installation of gypsum fiber sheets as guides. Profile thickness 2 mm.

The profile is attached to hangers installed on the plinth. In order to evenly distribute the load along the hangers vertically, the user spliced ​​the profiles together.

All work on the installation of guides for the ventilation facade is divided into a number of sequential steps:

• We mount the extreme profiles.
• We pull a lace between them.
• We set the rest of the profiles according to the markup.

After that, the user carefully measured all the dimensions of the house, including the "dressing room", and ordered "the firm" to calculate the required amount of siding.

Metal siding is made for the specific dimensions of the house, which minimizes the amount of trimmings.

After purchasing siding ZlojGenij started the installation of window strips, tk. this is a complex element and, according to technology, they must be installed before installing the siding.

First, the lower ebb is installed, then the upper one, then the sides are mounted. The whole process is also broken down into sequential operations:

1. We measure the distance between the profiles and transfer them to the ebb workpiece.

2. Leave 2-3 cm for the hem of the metal.

3. Then cut and fold.

For bending and cutting metal, the user used pliers and metal scissors. On the outside, the ebb is not immediately cut off, because this is done with the sidewalls installed.

The upper part of the ebb is made in the same way as the lower one.

The manufacturing process of the side parts is clearly demonstrated by the following photographs.

As a result, you should get such a knot.

The reason for the high heat loss of wooden houses usually lies directly in the constructive solution of such a house, as well as in the thickness of its floors. The size of the timber used for the construction of a wooden house is usually 150 × 150 mm. They began to build such houses in our country using the brought technologies, and where they came from, usually a milder climate and warmer winters.

As a result of this construction, we can observe the following:

• on the one hand, the construction of such a building is extremely cheap;
• on the other hand, there are huge heat losses, and, as a result, huge consumption of electricity and gas.

However, these shortcomings can be very easily removed, the main thing is to have desire, skillful hands and knowledge. The most optimal solution is to insulate the house from a 150x150 bar outside. How to insulate a house from a bar, we will tell you in detail in this article.

External insulation of a house from such a bar must be carried out in several stages:

• decide on insulation;
• calculate the exact amount of materials;
• mount an insulating layer;
• finish the facade.

Choosing a heater

For external insulation of a wooden house made of 150x150 timber, two materials are perfect:

• expanded polystyrene (polystyrene) in the form of sheets;
• mineral wool.

Thermal insulation of a house from a bar with polystyrene foam is perhaps the most popular method of external heating. However, its use is not entirely rational, and we will explain why.

Polyfoam has a thermal conductivity of about 0.082 W / m2. At the same time, for mineral wool, it is - 0.036 W / m2. It conducts much more heat, therefore it loses significantly to mineral wool. This disadvantage can be eliminated by applying a thicker foam layer, but this is not the only point. This material is great for insulating brick or stone houses, but not wood. The main reason is ventilation performance. Mineral wool has excellent air permeability, while it perfectly insulates the room.

Polyfoam cannot boast of such properties. It perfectly protects from the cold, but does not allow air to circulate freely, and the main feature of wooden houses from a bar is precisely the need to "breathe". After insulation with polystyrene, the wooden walls after some time will begin to become covered with fungus and mold, rot and collapse. After all, the formation of condensation in cold winter is simply inevitable.

Therefore, mineral wool remains the best choice for a wooden house.

We calculate materials

• slabs;
• special rolls.

The most suitable form for insulating a house from a bar is the form of a slab. This is explained by:

• slabs are more convenient for walls;
• they are more economical;
• adhere better to vertical surfaces.

Rolled mineral wool is usually used on uneven surfaces. The thickness of one slab is usually 5cm. To correctly calculate the layer of insulation, there are many special formulas, but here is the simplest way:

• if the walls are thicker than 20 cm and the temperature in winter does not drop below -20 ° C, then one layer of mineral wool can be used;

• if it falls below -22-25 ° C, then you need to use two, in rare cases - three layers.

In addition to mineral wool, additional wooden slats will be required based on:

• for a single-layer insulation - 5 × 5 cm;
• for multilayer - 5 × 10 cm.

You also need to buy waterproofing plastic sheeting, anchors, self-tapping screws and an antifungal agent. You will also need a special stapler with staples to attach the film.

Tip: It is better to choose a remedy for fungus that is complex, fire-retardant, and also provides protection against fire. For example, SENEZH Ognebio, Sentinel or another.

We install thermal insulation

The installation of the heat-insulating layer is carried out in the following order:

• preparing the surface;
• we put the first layer of waterproofing;
• we mount the crate;
• we install a heater;
• we mount the second layer of waterproofing.

At the preparatory stage, the wood should be treated with the indicated means.

Important! Here you need to approach this issue especially seriously, because then there will be no access to the surface.

After that, you need to wait until it dries up completely, so it is better to carry out these works only in the warm season.

The waterproofing layer is a special polyethylene film or diffusion membrane. When using membranes, you need to put it on the right side, because it tends to let air through in only one direction. It is fastened with a construction stapler and must be placed with an overlap of about 10-12 cm. The joints are insulated with special tape.

Advice: it is better to subtract 2 cm from the length of the slab, and so already mount the crate. This will provide a slight spring-loaded state of the plates and a more secure hold.

After that, the mineral wool slabs are installed. They are very easy to process - they are cut and you can give them any shape. To fix them more securely, use special anchors made of metal or plastic. It is best to use a wide head anchor.

And the last stage - thermal insulation - the surface layer of the waterproofing film.

Finishing

After the work carried out, a wooden crate is attached to the wall, which will serve as the basis for the future facade. You can use a variety of materials to decorate your home:

• lining;
• boards;
• siding;
• planken and much more.

After external insulation, it is also necessary to take care of internal heating, then your house will become as warm as possible in winter and cool in hot summer! Now you know how to insulate a house from a bar.

Andrey B.

I decided to warm myself the year before last. The house was built as a summer option. But over the years we fell in love with our country house and live in it almost all year round. Gas supply was carried out in our village and, having installed autonomous heating, we overwintered for two winters. The first one is more frequent visits, and the second lived constantly. But I can't say anything, the bills for the consumed gas were impressive. Therefore, having studied the issue, I proceeded to warming. On the advice of knowledgeable people, I bought a mineral wool Thermo plate from the manufacturer Knauf with a thickness of 100 mm.

With self-tapping screws, I screwed a 100x50 rail vertically along the wall of the house, then I made a template to the size of the width of the mineral wool slab and screwed the rest of the slats according to this dimension. This is not at all difficult to do. With a screwdriver, pre-drill holes for the thickness of the self-tapping screw in a 100x50 bar, and then fix it on the wall of the house without any problems. Then I laid the mineral wool. The thickness of 100 mm made it possible to lay the insulation in one layer, which significantly reduced the work time. Then he attached the diffuse membrane with a construction stippler. From a 50x50 timber, I made a crate for siding fastening. Fixed the siding.

Last year, the winter was not the warmest, but the amount of consumed cubic meters of gas has noticeably decreased. This winter, we live practically without going out in a country house. The house fully satisfies our need for warmth.

Vladimir U.

I was going to insulate the house. I found specialists who advised to make insulation from expanded polystyrene. I don’t know what they were guided by, and what I thought, but I agreed. I got the material, I didn’t stint, I took it very durable and expensive. The team got down to business, and within a week my house stood like a thermos. This is exactly what happened, then I still did not understand that in two years I would have to change the facade. So, after the indicated time, if necessary, I looked under the insulation and saw that the wood of the house was covered with black mold. I invited professionals who suggested to me that due to the fact that expanded polystyrene does not absorb moisture that has left the house, condensation has formed, which has caused mold. I had to dismantle the polystyrene facade and use mineral wool as insulation. Which definitely cost me a pretty penny.

Kum was going to insulate the house. We have the same with him, from a bar 150x150. Together we bought plots and built them together. So he comes and says that he has found people, they will spray us with polyurethane. He says that if there are two houses, they give a good discount.

I myself have been thinking for a long time that it would be nice to insulate, then you can live in the winter. Without hesitation he agreed. And I have no regrets. Environmentally friendly, does not rot, does not start spider bugs in it, durable. Sheathed with siding, and everything is beautiful.

Video recording of house insulation from a bar:

https://youtu.be/5eBgKZWcdpc

We also recommend you:

Houses made of timber are becoming more and more popular among Russians, however, their main drawback is their inability to cope with the harsh Russian winters due to some peculiarities.

The fact is that the average thickness of a house made of timber is about 150 mm, and this is not enough to keep warm and cozy in the house during severe winter frosts.

The optimal section for walls made of timber is 40 cm, it was this thickness that was enough to keep warm in the house even in winter.

But not all houses from a bar have such a thick walls. Therefore, in order for the home to be comfortable and cozy not only in summer, the question arises of how to properly insulate houses from a bar outside.

What to choose: insulation from the inside or outside?

Much more often, a house from a bar is insulated from the outside, and this happens for several reasons. First, less useful living space is stolen, and the tree will be better protected from the negative effects of natural factors.

There is an opportunity to insulate a house from a bar outside with your own hands, and competently made thermal insulation will help maintain a comfortable temperature inside the house.

In addition, if the house is insulated in compliance with all the nuances, then utility bills will also decrease, namely, payments for gas or electricity, which will have a beneficial effect on the family budget.

What materials can be used to insulate houses from a bar from the street side?

The modern building materials market is rich and diverse, manufacturers offer various insulation for a house from a bar, such as foam, mineral wool, basalt insulation and some others.

What material to choose for insulating a house from a bar?

For this, the following factors must be taken into account:

• The cost of insulation (initially, you should decide how much you are willing to spend on insulation of the house),
• Its quality,
• Thermal conductivity level,
• Elasticity of the insulation material,
• Focus on how easy it is to carry out insulation work at home with the help of one or another heat-insulating material (this nuance is relevant when carrying out installation work on your own).

The choice of insulation

In order to properly insulate a house from a bar outside, you should take a responsible attitude to the choice of heat-insulating material.

Most often, mineral wool is used to insulate a dwelling, since compared to its competitor, foam, mineral wool is a less flammable material, which has a beneficial effect on the fire safety of the dwelling.

In addition, this building material is environmentally friendly and has good technical characteristics.

So, mineral wool conducts heat and cold very slowly.

Preparatory work

Before purchasing the selected insulation, you need to carry out simple calculations and make an estimate of the cost of house insulation. In addition, it is necessary to carefully verify the amount of material that will be required for insulation.

Mineral wool insulation is sold in three forms, in the form of slabs, mats, and also rolls. The easiest way to work is with plates.

But in order to purchase the required amount, one should take into account the fact that if the thickness of the walls of the house is less than 20 cm and the winter temperature often drops below the mark of 20 degrees, then it will be necessary to insulate the walls with a double layer of mineral wool, therefore, it will be necessary to purchase insulation in 2 times more.

Some professional builders advise to insulate the house with several materials, combining them, for example, sew foamed polyethylene on the facade, and insulate the rest of the house with mineral wool.

What else is needed for thermal insulation work?

In addition to the insulation itself, some other things will also be required:

• Waterproofing film, which should be purchased 10% more than the area of ​​the walls (this is done because the film is overlapped),
• Level for marking,
• Construction stapler for fixing the film,
• Antiseptic for treating walls,
• Screws and self-tapping screws for fastening work,
• A certain amount of small section timber.

The order of work on the insulation of the house

Many people ask professional builders the question of how to properly insulate a house from a bar from the outside and what is the sequence of actions for carrying out thermal insulation work.

So, first you need to treat the walls with an antiseptic, while it would be better to use a product that gives protection against mold and mildew. After application, the antiseptic should dry completely, only then you can proceed to the most important installation work.

After that, it is necessary to make a crate; for this, beams of a smaller section are attached to the walls of the house. Moreover, you need to start fixing them precisely from the corner of the house and vertically at the same distance.

This is the future "frame" for the installation of mineral wool.

Now you can proceed to the installation of mineral wool, but first, the plates with a regular knife should be cut into rectangles of the required size.

It is required to take into account the fact that you need to cut the mineral wool slightly wider than the distance between the bars.

We fasten the mineral wool to the very roof with special anchors, which should be located at a distance of about half a meter from each other.

After that, it is necessary to apply another layer of insulating film, but now with the glossy side outward. In order for the film to hold, it again needs to be secured with a construction stapler.

Additional materials on the topic:

Thermal insulation of the house with mineral wool is completed. It remains only to finish the facade of the building from above with the selected material.

Thus, we can conclude that installation manipulations on the thermal insulation of the house from the outside cannot be attributed to complex construction work, this can be done independently, the main thing is to take into account all the essential aspects and follow the instructions.

It is very important to carry out high-quality thermal insulation work, since competent installation of insulation is a guarantee that your house will be comfortable and cozy for many years.

How to properly insulate a house from a bar outside: important points
If you are still wondering how to insulate a house from a bar, then you are straight to us

Insulation of a private house

Cold floor insulation

How to insulate walls in a house

How to insulate an attic at home

Internal wall insulation

Is it worth insulating a house from a bar outside?

Insulation of a log house outside

Many people now have a question, is it possible that this traditional construction technology does not imply high-quality preservation of heat by a bar? The fact is that the timber technology was developed for more favorable climatic zones, and in Russia we have to deal with additional insulation in order to make the microclimate in the house more favorable and reduce heating costs.

Of course, it is possible to sheathe the timber with siding without insulation, but if you carry out high-quality work with the walls, the heating costs will go down sharply. But before you insulate a log house from the outside with your own hands, you will need to choose an insulation, calculate its amount and the required thickness. This is an estimate that should be met financially. Consider an easy-to-install insulation with undeniable advantages.

Selection and calculation of material for the walls of the house

Today on the market of thermal insulation materials the most demanded are polystyrene, polystyrene foam (extruded polystyrene foam) and mineral wool insulation. We will focus on mineral wool and proceed to consider the benefits of this material. This insulation does not burn (the main and indisputable advantage), it is environmentally friendly, the thermal conductivity of the mineral wool is 0.036 W / m2,

Scheme of wall insulation from a bar outside

The next step is to calculate the amount of material and the thickness of the insulation layer, which will suit our climate and the design features of the walls. Mineral insulation is sold in slabs, mats and rolls. It is easier to work with plates, so we will choose this type for the calculation. Taking into account that the surface of the walls is even, and the standard thickness of the slabs is 50 mm, we begin to count.

If the wall thickness is 20 cm, and the lowest temperature in winter is 20 ° C, then we put the mineral wool in one layer. If the thickness of the walls made of timber is 20 cm, and the temperature in winter drops below 20 ° C, we put the insulation in two layers. The calculation depends on the average value of the climatic conditions of the region. To accurately calculate the thickness of the insulation, use the heat engineering calculator on the site.

Do-it-yourself insulation of a house from a bar outside

How to insulate a house from a bar outside? For work, we will get the necessary tools, materials and get down to work. In addition, you will have to buy: a waterproofing film with a margin of 10-15% of the wall area, anchor screws, wood screws, an antiseptic, a small section bar. Also prepare a set of tools - a hacksaw, a hammer, an ax, nails, a construction stapler with staples, a level, a brush, etc.

Preparing the walls of the house for insulation

Do-it-yourself home insulation from a bar

We treat the walls with an antiseptic with a brush or roller. We process the wall several times and wait until it dries completely. Do not forget to check the quality of the caulking of the walls, dig in the walls if necessary. After that, we start laying the waterproofing film with our own hands, using a stapler, shoot it to a bar with an overlap between the strips of 10-15 cm. We glue all joints with tape.

Fastening lathing from a bar

It is important to start the crate from the corner, and we try to mount the vertical guides at the same distance from each other, check the level or plumb line. Between the timber, the insulation should be laid close to each other with your own hands, and on top of it the finish will be attached - vinyl siding or pvc panels, so the distance between the timber should be 1-1.5 cm less than the width of the mineral wool slabs.

Installation of insulation on the walls

Installation of insulation on timber walls

Having installed the mineral wool, we drill holes in the wall and install the mushroom dowel in the form of an umbrella. Fastening the plates can be done in increments of 40-50 cm. Fully installing and fixing the insulation to the very roof, cover the wall with a second layer of vapor barrier, fix it to the timber with a stapler. Vapor barrier is necessary to protect the mineral wool from moisture, so the film should be laid with the smooth side to the insulation.

The waterproofing film does not allow moisture to pass in one direction and calmly allows it to come out from the reverse side - this property is excellent for waterproofing and insulating walls in a bath. Do not forget to read the instructions of the manufacturer of the vapor barrier film, so as not to make mistakes when installing it. Warming is almost complete at this point, and you can start finishing the facade with a planed board. See further - how to insulate a house from a bar outside with mineral wool.

(9 estimates, average: 4,33 out of 5)

Do-it-yourself insulation of a house from a bar outside
In this article, we will consider the technology of insulating a log house from the outside and propose a technology. We also picked up a video instruction from the company on this topic.

The climate in Russia is extremely harsh, winters are cold, so the question of how to properly insulate a house from a bar outside is relevant. This work must be done very carefully, especially from the outside of the house, only then will we get conditions for year-round living.

Insulation with mineral wool insulation.

Features of housing construction in Russia

Naturally, the question arises, how did you get along without insulating a house outside? After all, wooden houses have been built in Russia since ancient times, they have stood for centuries.

It must be understood that an old and reliable log house and a modern log house are somewhat different concepts. Until the 20th century, only chopped timber was used for buildings. The preference in carpentry work was given to the ax, although the saw was known in Russia from ancient times.

But it was believed that sawn wood absorbs moisture more strongly, swells and is subject to decay. And the wood in the logs, which are processed with an ax, seems to clog up under his blows and does not absorb moisture.

Houses were built without nails, there were several ways to cut logs. The cups were cut down strictly according to the shape of the logs, which were placed in them; a longitudinal groove was made in the crowns for a better density of the frame. We carefully caulked the joints of the logs.

All this gave the effect of solidity. The logs were thick enough to keep warm.

House with a male roof, 19th century.

Another feature was the erection of a log house under the very roof, the design of which in this case was called male. This type of structure was especially widespread in the north of Russia. The logs were raised to the very roof, they built a triangle of the pediment, on which they fastened the boards for the tes.

So, we see the following features that did not allow traditional wooden houses in Russia to get cold:

1. wall thickness sufficient to retain heat,
2. solidity of the walls, achieved by the density of planting logs and caulking cracks,
3. low level of hygroscopicity of wood due to its processing with an ax.

Consider these features as applied to modern timber houses.

Modern house from a bar

A modern house from a bar with a section of 150 mm.

For a normal microclimate in the house, when winter frosts are raging, it is necessary to build a house from a bar with a thickness of 40 cm. After all, the timber simply by itself will freeze through in severe frosts.

In modern housing construction, a bar with a cross section of 150 mm is used, so such a house has to be insulated from the outside or from the inside. The most correct to achieve the desired effect is considered to be the external insulation of a log house.

The level of hygroscopicity is reduced by treating the timber with special impregnations. With the help of various methods of external insulation, it will be possible to achieve the effect of solidity and sufficient wall thickness, the main thing is to correctly find the answer to the question of what is the best way to insulate a house from a bar outside.

The advantages of outdoor insulation

The advantages of the method of insulating a house from the outside are as follows:

1. the inner space is not affected, work can be carried out without disrupting the usual rhythm of life of the owners,
2. the ability to do insulation work with your own hands, without the involvement of specialists,
3. there is a possibility of an original solution of the facade of the house,
4. heat loss decreases,
5. external walls will be protected from the adverse effects of the external environment.

Heaters

Basalt wool thermal insulation - Light Butts.

The modern market is rich in materials that are used for wall insulation:

1. basalt insulation,
2. glass wool,
3. Styrofoam,
4. extruded polystyrene foam,
5. foamed polyethylene,
6. insulation made of polyester fibers,
7. sprayed polyurethane foam.

In the photo foil insulation Penofol-A made of foamed polyethylene.

When deciding how to insulate a house from a bar outside, it is necessary to take into account many factors, take them into account and draw the right conclusions. In this matter, the price, quality and thickness of the insulation play an important role.

In order to make the right decision, it is necessary to consider all the comparative mechanical and thermal technical characteristics of heaters, given that the characteristics of materials produced by different manufacturers may differ.

What features should be paid attention to when deciding how to insulate a log house from the outside:

1. thermal conductivity index,
2. compressive strength index,
3. an indicator of elasticity, elasticity (this is important for understanding the ability of a material not to break when bending and restore its original shape),
4. study the installation conditions (each material is accompanied by the manufacturer's instructions on how to install this insulation).

Advice. When choosing the thickness of the insulation, you can face the choice that the mineral wool insulation 50 mm thick will be insufficient for walls of 150 mm according to the requirements of SNiP 23-02-2003 "Thermal protection of buildings", and with a 100 mm thick insulation it will significantly exceed them.

In this case, you can use a combination of different insulation materials. For example, use expanded polyethylene, covering the facade with it directly along the vapor barrier, and sew on bars on it, between which and strengthen the mineral wool insulation.

The procedure for carrying out thermal insulation works

Consider how to properly insulate a log house outside, what stages of work must be performed and in what sequence.

In order for the air vapor passing through the thickness of the timber not to turn into water in the thickness of the insulation, it is necessary to make a vapor barrier. The best option would be to conduct it from the inside of the walls, made of foil material that reflects heat into the room.

The option of insulating the walls of a house from a bar with a vapor barrier inside the room (1-outer sheathing, 2-counter-rail, 3 windscreen, 4 - insulation, 5 - load-bearing wall).

Consider how to insulate a log house from the outside, when the interior decoration has already been completed and it is necessary to provide for a wind insulation device outside (see also the article Finishing a house from a bar inside on your own).

You must do this in the following order:

1. we fill the vertical crate on the outer walls from edged boards with a thickness of 40-50 mm,
2. we fasten the vapor barrier membrane on the boards with a continuous sheet with an overlap,
3. we fill the second layer of lathing on the same boards with a step suitable for the selected insulation,
4. we lay the insulation between the bars,
5. we lay a film or membrane for wind protection,
6. we fix the wind protection with counter rails,
7. we mount the outer cladding on the slats.

Important. The vapor barrier of the wall must have air vents arranged from below and from above. This is necessary to circulate air and balance the temperature in the gap area and the temperature in the interior.

How to insulate a house from a bar outside to create a comfortable atmosphere in it
How to insulate a house from a bar outside correctly with your own hands: DIY installation instructions (photo and video)

Many individual developers insulate a log house from the outside with their own hands in order to save money. The best option is to lay the insulating material under the finishing coat. As such, vinyl siding is very often used, which allows you to reliably protect the building from external influences for an acceptable fee.

The photo shows the main work.

Advantages of this option

In this case, the elements of the supporting structure are installed, between which mineral slabs are laid, capable of providing high-quality thermal insulation of the structure. The insulation is closed with a waterproofing film. Vinyl panels are attached to the elements of the wooden lathing.

List of merits

• The cost of the materials used is relatively low, which means that the final design is not too expensive,
• The absence of complex construction processes allows you to carry out all the work yourself,
• Siding panels are resistant to external influences, so they can protect thermal insulation for a long time,
• The mass of all products is not so great, so there is no need to strengthen the facade before the main operations.

You can even transform such a structure from a bar.

Addition!
When mineral wool insulation is laid under the siding, the side surfaces of the structure can be leveled, since the construction of the supporting structure is imperative.

Installation

Further instructions will help you understand how to properly insulate a log house from the outside directly under the siding finish. If the basic rules are followed, then you should not worry about the quality of the work performed, even if there is no solid experience in construction.

Necessary materials

• Bars with a cross section of 50 × 40 or 50 × 50 mm are required to create cells in which the insulation will be laid,
• A vapor barrier material is needed to protect thermal insulation from impact from the inside of the building,
• Mineral wool slabs or rolls are required to form a barrier against heat loss,
• The waterproofing membrane will protect the insulation from the outside directly from moisture,
• Edged board will be required for the construction of the lathing for the cladding,
• Siding panels and accessories are purchased for finishing works,

Plates are supplied in small packages.

Note!
During the installation process, nails and screws of various lengths will be needed to fix the fragments of the structure.
The final size of the fasteners depends on the materials used in each case.

Used tools

• Hammer,
• A hacksaw or any other cutting tool
• Nail puller,
• Screwdriver,
• Long string
• Building level,
• Simple pencil,
• Roulette at least 5 m long,
• Metal scissors,
• Stapler.

Thermal insulation process

Before starting work, it is necessary to remove from the facade of the building all objects that will interfere. Platbands are completely torn off from windows and doors, decorative strips are removed in places of edging, visors and other elements are removed.

Satellite dishes, lanterns and fixed structures can be left in place.

This is how the insulation should be laid.

1. First, a vapor-tight membrane is laid out. It is fixed directly to the wall using a stapler. When laying the canvases, a slight overlap must be made. Usually manufacturers make special labels,
2. Bars 50 × 50 mm are taken and fixed horizontally to the side surface of the structure. A distance should be left between them, which will be 1-2 cm less than the width of the thermal insulation board. Self-tapping screws with a length of at least 65 mm are used for fastening,
3. Next, insulation is carried out with mineral wool. Fragments of material are inserted between the installed wooden blocks close to each other. First, one edge of the plate is wound up, after which the other is carefully refueled. If necessary, the elements are cut with a clerical knife,
4. After laying the insulating material, a waterproofing film is attached to the bars. It is fixed according to the same rules as the vapor barrier membrane. The overlap on adjacent canvases should not be less than 10-15 cm.

Waterproofing material.

Attention!
Bars for insulation at the installation stage do not require alignment.
This will be done in the next step.
The elements are tightly attached to the lateral plane and fixed with self-tapping screws.

Sheathing device

After the layer of thermal insulation has been created, the lathing for the facade material is erected. Edged boards are used as basic elements. Their thickness should not be less than 25 mm, otherwise it is impossible to guarantee a long service life of the supporting structure.

First you need to prepare the corner pieces for installation. It is best to take two boards at once and connect them so that a right angle is formed. It is recommended to fix such products directly along the edges of the wall. Their alignment should be carried out by means of a building level.

Demonstrated wooden lathing.

When the corner elements are fixed, it is necessary to stretch the twine from one of them to the other. It will help you to align the intermediate pillars on the same level. The optimal step is 40 cm. It is this distance that allows you to save on lumber without compromising quality.

After the erection of the supporting structure, the siding is installed directly in compliance with all the rules.

Important points when installing the coating

• There should be a distance of 7 to 11 mm between the components of the finish, since plastic is used as the main material for the manufacture of panels and component parts,
• First of all, elements are mounted for the design of joints, corners and openings, as well as starting and finishing profiles, after which vinyl panels are installed,
• Fasteners in the form of screws and nails should not be driven in to the end to compensate for linear expansion, otherwise cracks and chips may appear on the coating,
• The fixing elements should be located strictly in the central part of the perforations, otherwise the trim fragments may deform, which will lead to additional costs and time costs.

Places of installation of siding elements.

As a conclusion

Insulation of a log house from the outside: mineral wool under siding cover
Insulation of a log house from the outside: do-it-yourself video instructions for installation, how to insulate with mineral wool, under siding, price, photo