What kind of inter-crown insulation for timber. Interventional insulation for timber: which one to choose?

Wooden beam- excellent building material. It is lightweight, absorbs and releases moisture, and its thermal conductivity is several times lower than that of brick, concrete or stone. The only serious drawback of this material is the change in size during the drying process. Therefore, the dimensions of both the timber itself and the house made from it are constantly changing. In winter and autumn, the timber increases, absorbing atmospheric moisture, in spring and summer it decreases, because during the drying process the moisture evaporates. Because of this, gaps appear between the crowns, which increase heat loss in the house, and this negatively affects the microclimate of the rooms and increases heating costs. In this article we will talk about the various insulation materials that are used in the construction of houses made of timber, and also give recommendations on choosing the most suitable one for specific conditions.

Requirements for interventional insulation

In wooden houses, including those built from timber, it is necessary to use only organic insulation. This is due to their characteristics, the main ones of which are:

• the ability to absorb and release moisture without increasing thermal conductivity;
• resistance to high humidity;
• flexibility and elasticity;
• UV resistance;
• inapplicability for the construction of bird nests and burrows of various small animals.

One of the main requirements for insulation is the ability to retain its properties even after getting wet, because during rain, the insulation absorbs a certain amount of moisture. Therefore, they are not used as insulation mineral wool, which is suddenly losing its thermal insulation properties when wet or under strong pressure. An equally important characteristic is the ability to absorb and evaporate moisture. After all wooden wall absorbs moisture both from rain and from the room, so wooden houses with normal ventilation are never damp or too dry. If the insulation absorbs well, but does not release moisture well, then the timber will begin to rot, which is why the house will soon begin to collapse. Therefore, modern synthetic insulation cannot be used for. They absorb water well, but do not evaporate it well, which is why the timber at the point of contact with the insulation will constantly become damp. In such conditions, the appearance of rot and fungi is only a matter of time.

Important characteristics of insulation are flexibility and elasticity. When a house is being built, the pressure on the insulation of the lower crowns is maximum. Then summer comes, the timber is exposed to the heat and sun rays loses moisture and dries out, causing gaps to appear between the crowns. If the insulation is not elastic enough, it will remain crumpled and compressed, as a result of which the joint between the crowns will become a source of cold. Therefore, a house with unsuitable insulation often has to be caulked, because this is the only way to avoid drafts in winter. An important factor influencing the choice of material is its demand among birds and various rodents who can use it to create or finish nests and burrows. Therefore, for use as inter-crown insulation, it is necessary to use only those materials that will not be attacked by birds and rodents. Otherwise, they will pick out the insulation from the walls, which will lead to an increase in their thermal conductivity and the appearance of cold bridges in winter.

What kinds of inter-crown insulation are there - jute, flax

Most often, the following materials are used as inter-crown insulation:

• jute;
• flax wool;
• felt.

Which interventional insulation to choose + Video

When starting to choose insulation, first of all calculate the required amount of material. To insulate profiled or laminated timber, the insulation consumption is 200–400 grams per square meter of total insulated area. For sawn and planed timber, the consumption is 300–500 grams per square meter. For timber with natural humidity, insulation consumption is 350–600 grams per square meter. After this, it is necessary to determine the thickness of the insulation. For dry profiled and laminated timber, the optimal thickness is 3 mm. For sawn and planed timber, the optimal insulation thickness is 4–5 mm. For timber with natural humidity, the thickness of the insulation should be from 6 to 10 mm. This is due to humidity and the shape of the timber. Having determined the quantity and thickness of insulation, find out the cost in stores various materials, then calculate the price of the entire volume and think about whether you can afford such expenses. If installed correctly, any of the materials described above will provide excellent insulation for a house made of timber, so there is not much difference between them.

In nature, there are several main types of insulation for houses made of logs and timber, which differ in the quality of thermal insulation and special technical characteristics. These include inter-crown insulation for timber, which is popular because it is capable of retaining the heat of a wooden residential building very efficiently and reliably.

Today, such jute material is considered one of the most advanced types of protection and heat preservation in timber buildings. It can consist of jute non-woven fabric, flax-jute, flax wool and ribbon tow. Jute is a derivative of jute fiber, which comes in Russian Federation from Bangladesh and India.

Features of the material

Varieties

1. Linen batting is a non-woven product and consists of 100% flax.
2. Flax-jute - as a rule, consists of 15-20% flax + 80-85% jute. In this case, the percentage may well be slightly changed.
3. Linen tape tow, like the first option, consists of 100% flax - it is used mainly as insulation between timber (logs - for inter-crown seams), and is also widely used as caulking for wooden buildings, sealing joints between logs and joinery (doors , window). The usual width of tape tow is 150 mm, and thickness is 8-10 mm.

What to choose

Most private developers and construction organizations use flax-jute and jute as insulation for walls made of timber in log joints. Flax wool is more often used by developers individual character who purchase material on construction markets in full confidence that they are buying jute insulation.

Often the consumer is faced with the question of what material to choose? Jute, tow or flax wool? Which one is of higher quality and better?

It is not so easy to answer these questions unequivocally, but let's try.

Choosing interventional insulation for timber house First of all you need to know:

• about the quality of the manufactured log house;
• about the quality of mating grooves and cut cups in timber or logs.

As a rule, the components of rounded logs of log houses or wooden house have a lower groove of higher quality, in contrast to log cabins chopped with an ax. In addition, they are often planed (profiled) or sawn with rather rough processing of wall beams.

Because interventional insulation material for timber and for log houses made from rounded logs, it is most suitable in the form of a flax strip or non-woven jute fabric. But for chopped log houses, tape tow made of flax and jute is more suitable.

Distinctive characteristics

There is no particular difference between inter-crown insulation made from flax and jute. Both of these materials are excellent for both construction and assembly. However, there is one feature in these products that we want to focus your attention on, and that is density.

Advice!
The denser the inter-crown insulation for laminated timber, the better the insulation of the joint.
That is why this parameter is very important!
In some cases, the density indicator has higher value than the thickness of the material - after all, dense insulation is much better than thick, less dense insulation.

Modern builders especially value technology in the use of tape insulation, the use of which significantly speeds up installation work, and also promotes uniform distribution over the entire surface of the inter-crown space.

Comparative characteristics of jute insulation

Let's spend comparative analysis various tape insulation materials, for which we will consider “lush” and “thin” jute material:

1. “Lush” insulation for jute beams appeared on the markets not very long ago. The material attracts attention with its thickness, and its low price also attracts attention. However, it is worth considering that the external “pomp” can hide the low surface density (as we discussed above).

Such cheap jute is made by joining jute fibers using the gluing method - called chemical heat bonding. The fibers are combined with each other under the influence of elevated temperatures, and synthetic materials (mainly lavsan) are used.

At this method the following can be observed:

• the consumption of raw materials is reduced significantly, which also reduces the cost;
• the manufacturing process is more rapid.
• Insulation for a house made of “thin” timber is made using needle-punched technology: the fibers are attached using long jute fibers, which pull over short ones. This technology is more labor-intensive and expensive, but significantly increases the quality of the material and its uniformity over the entire surface of the thermal insulation.

This event results in the following:

• such insulation does not flake at all;
• it does not accumulate moisture (breathes);
• does not emit harmful chemicals that destroy the timber.

You should know!
Dense thin material easy to drill when making the holes required for the dowel.

Necessary calculation

What should you consider when purchasing so as not to purchase “air”? There are certain instructions. First of all, the surface density of the inter-crown insulation is taken into account.

It depends on the following indicators:

• length;
• width;

The width and length will be known to you upon purchase, the weight is easily determined by weighing. After this, the already known parameters are entered into the calculation formula:

Surface density is directly proportional to weight (g) and inversely proportional to length and width (m). The resulting value is compared with the specified manufacturer (seller).

Traditionally, in the wooden construction of bathhouses or residential buildings, inter-crown insulation is used to seal the joints in the walls.

The main purpose of the material is to insulate the log structure and improve the performance characteristics of the wood.

Most insulation materials contain natural components, however, some materials may contain artificial filling, which is absolutely not suitable for wooden buildings.

Why is insulation needed?

Intercrown insulation is universal material, therefore it is widely used for houses and bathhouses made of rounded, profiled or logs. In this case, the density of the insulation can be about 750 g/sq.m. with a thickness of up to 11 mm.

To reduce heat loss, the insulation is laid in one layer. It is important to remember that when using uneven or under-dried timber, the insulation is laid in several layers.

Insulation promotes timely vapor and heat insulation of wooden structures and high-quality air exchange in rooms.

Performance characteristics

High-quality insulation, which is laid between the crowns of logs or beams, must comply high standards quality and safety of use. Therefore, the main performance characteristics of the material include:

• High elasticity and density, maintaining properties throughout the entire period of operation. Thanks to its elasticity, the insulation is able to take the desired shape, and its density is able to fill existing gaps between the crowns.
• Low thermal conductivity for effective protection walls from heat loss.
• High moisture and vapor permeability.
• Resistance to mold, fungi and harmful microorganisms that arise when exposed to increased moisture and heat.
• Resistant to ultraviolet exposure and adverse weather conditions.

Types of interventional insulation

The modern construction market offers big choice natural insulation materials.

The most common options are felt, jute, moss, linen and combined.

Manufacturers also offer wear-resistant synthetic insulating materials - penofol, mineral wool, polystyrene foam boards, silicone sealants.

Without a doubt, they have higher performance characteristics in comparison with natural analogues, but not suitable for.

Felt (sheep's wool)

A natural material for insulation, which in its performance properties is superior to tape insulation made from plant fibers.

Felt is a worthy option for buildings made of profiled timber. It is simply irreplaceable for insulating residential buildings and baths, although it is not cheap.

During the production process, the felt seal is carefully treated with special fire-retardant compounds, as a result of which it absorbs moisture well and quickly releases it when heated.

It is resistant to mold and mildew and does not cake during use.

Felt is suitable for insulating walls and partitions of log houses and bathhouses.

Jute material is a modern representative of tape insulation, which has a dense and uniform structure. Jute is an expensive material, unlike flax, but it is of higher quality.

A distinctive characteristic of jute is its high hygroscopicity.

Jute interventional insulation is made from annual tropical plants the mallow family, which grows in hot countries. Plants contain about 25% lingin - a natural resin that has high antiseptic properties.

Jute has a lot of advantages that set it apart from its main competitors:

• Environmental friendliness and safety;
• Good thermal conductivity;
• Resistance to rotting and fungal attack;
• Durability and practicality;
• Easy installation;
• Attractive appearance.

Disadvantages include susceptibility to caking and high cost.

Walls insulated with jute tape do not require additional decorative finishing, and the seams are smooth and tight.

Jute is represented by the following varieties: jute tow, jute felt and jute flax.

• Tow has solid and long fibers. Is used for .
• Felt is characterized by increased fragility and stiffness of the fibers. Used to seal door and window openings.
• Jute flax is a mixture of flax and jute fibers. It is characterized by high wear resistance and elasticity. Suitable for caulking walls and partitions.

Moss

Currently, moss remains an accessible and cheap option for insulating crowns in houses and bathhouses made of logs or timber. Moss is natural thermal insulation material, which has unique performance characteristics:

• Environmentally friendly;
• Vapor tightness;
• Resistant to creasing and deformation;
• Antiseptic properties.

Moss quickly absorbs excess moisture and provides good air exchange. It is recommended to use sphagnum (white moss) and cuckoo flax (red moss) as inter-crown insulation.

The most durable and wear-resistant is red moss, which is characterized by a high content of antiseptic components and resistance to high moisture.

White moss has high thermal insulation properties and reliably protects wood from fungal infections.

Despite the obvious advantages, moss also has some disadvantages - low fire resistance and difficulty in installation.

Linen

Linen materials for insulation have been used for quite a long time. Linen is hypoallergenic, provides good air exchange, does not create static charges, and is resistant to mold on the walls. Interventional insulation of this type has:

• High elasticity and softness of fibers;
• Long service life;
• Low thermal conductivity coefficient;
• Resistant to UV radiation, microorganisms and mold;
• Affordable price.

Currently, manufacturers offer two types of linen insulation - tow and flax wool.

Tow

It is characterized by low cost and complexity of installation. Inter-crown insulation for timber is highly hygroscopic and prone to rotting, so it is more advisable to use it to seal window and door openings.

When using tow, caulking is carried out twice - in the first year after construction is completed, and in the second year - after the building has settled.

Lnovatin

A material that is made from flax fibers using special equipment.

To give strength, the finished fabric is stitched with threads. Linen batting is affordable and easy to install. This is a good economical option that is suitable for insulating houses and baths.

Often used after complete shrinkage of the structure.

Combined insulation materials

They have unique operational properties the material from which they are made.

Flax in combined materials increases elasticity and practicality, jute increases resistance to creasing and caking.

The special structure of combined insulation materials satisfies the needs of the building material, taking into account the climatic conditions in which it is used.

What insulation is suitable for a bath?

Beginners often ask themselves the question: what insulation to choose for the walls of a bathhouse?

The best representatives are insulation materials made of moss, jute and flax, as well as their derivatives. They are successfully used for caulking wooden houses and baths.

To understand which is the best insulation for a bathhouse, you should pay attention to the main characteristic of the material – density.

For timber structures, insulation with a thickness of 4 mm and a density of 350–450 g/sq.m. is used.

For steam rooms made from rounded logs, products with a thickness of 5 mm and a density of at least 600 g/sq.m. are better suited.

For houses with 2–3 floors combined with a bathhouse, material with a thickness of 9–11 mm and a density of up to 750 g/sq.m is used.

To choose a quality sealant, you need to know what type of wood is used to build the log house.

For baths made of timber and rounded logs, you can choose materials up to 10 mm thick - jute felt, flax felt, combined option with jute and flax.

For a chopped-type bathhouse, it is better to choose insulation up to 15 mm thick - felt made of jute and flax, tow in ribbons and bales made of flax or jute, moss.

Methods for sealing inter-crown gaps

Regardless of what type of material was chosen for insulating a wooden structure, installation work is carried out in several available ways:

• No bends;
• With a bend on one side;
• With a bend on both sides.

Laying insulation without using bends is different high quality execution of fit and small technological gaps.

The material is laid out around the perimeter of the log house on the base, and the next element is laid on top. Fixation is performed with a construction stapler.

For timber buildings, a one-sided bending installation method is used. To do this, take a compactor whose width is twice the width of the log. The strip is mounted with a one-sided bend on the lock. WITH outside The walls are additionally installed with a rope made of jute or flax.

Installation of insulation with a double-sided bend is carried out for buildings made of wild logs, fire monitors or rounded logs.

Often similar Construction Materials differ in uneven sizes at different ends.

The inter-crown insulation for the timber is fixed using a stapler, while the strips are folded in half and shifted in width. This allows you to perform correct styling between different sized ends. In addition, this method prevents complete shrinkage of the wood.

Choosing the best insulation option for a home or bathhouse depends on many factors that experienced craftsmen taken into account at the beginning of construction.

Inter-crown insulation is one of the important elements of a wooden structure. The microclimate in your wooden house will depend on which interventional insulation you choose. For effective and environmentally friendly thermal insulation of a wooden house or bathhouse, it is best to use TERMOFIBER inter-crown insulation.

The main advantages of interventional insulation

Firstly, this inter-crown insulation is made from hollow polyester fibers, which are 5 times thinner than the natural fiber of jute or flax.

At the same time, the material is absolutely vapor permeable (your home breathes).

Secondly, the material is environmentally friendly for humans and environment.

Thirdly, interventional insulation does not absorb moisture, this is one of the important indicators, since raw insulation cannot be a good heat insulator.

Fourthly, due to the elasticity of hollow fibers (the fibers do not break like jute or flax), the material restores the thickness from full compression to 90%.

For example, THERMOFIBER, thickness 20 mm, density 300 g, will compress under load up to 1 mm and straighten, evenly filling the resulting gap or cavity between a beam or log up to 18 mm, thereby eliminating blowing and providing reliable thermal insulation.

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Video interventional insulation

Application of interventional insulation

For inter-crown insulation of profiled or laminated timber, inter-crown insulation TERMOFIBER with a thickness of 15 mm is used.

Inter-crown insulation for timber: an excellent material for wooden house construction

Inter-crown insulation is laid in the beam profile. In this case, a material 15 mm thick will compress under a load of up to 1 mm and restore the thickness by 90% without interfering with the shrinkage of the entire structure.

For inter-crown insulation of rounded or chopped logs, TERMOFIBER inter-crown insulation with a thickness of 20 mm is used and is laid on the width of the lunar groove with or without a bend (at the client’s request), a 20 mm inter-crown insulation will compress under a load of up to 1 mm and restore the thickness by 90% without will prevent shrinkage of the entire structure.

How much does interventional insulation save?

Inter-crown insulation TERMOFIBER can actually save up to 100,000 rubles and these are not empty words.

For example, your log house is 5x10 m, two-story, wall height is 5.7 m, you use a 240 mm log, 24 crowns. Perimeter of the first crown 30 linear meters((5+10)*2 = 30), the total perimeter of the house is 720 linear meters (30*24 crowns).

The cost of caulking a log house is 70 rubles/linear meter (2017 prices), caulking is done on both sides, the total cost of work alone is 100,800 rubles (70*2*720). You may have to caulk every year, as the jute or moss is pecked by birds. To summarize, THERMOFIBER saves 100,800 rubles.

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Jute disadvantages

As many years of practice have shown, jute or flax are NOT good and durable inter-crown insulation for a wooden house or bathhouse.

They have a number of disadvantages, which indicate that these materials cannot be used as inter-crown insulation for logs and beams.

Firstly, jute or flax absorb moisture very strongly. That is, at 100% humidity, jute will absorb 30% while it dries very slowly (from 2 to 4 days). That is why jute (flax) was chosen as the material for making burlap for transporting bulk goods such as sugar, rice, sand.

But this quality of the material indicates that jute does not allow moisture to pass through, and does not mean that it is a good heat insulator. Since wet material loses all its properties.

Secondly, many builders believe that jute or flax do not rot due to great content resins in these materials. This is a direct misconception; jute or flax rot and create a favorable environment for the development of fungi and microorganisms since it is a natural material.

You yourself can conduct a simple experiment: take two damp boards (natural humidity) and lay jute or flax between them and leave them indoors under pressure for 1-2 weeks. Then open it and see what you got.

And in conclusion, your builder makes money from caulking the log house if jute or flax is chosen as inter-crown insulation.

The jute is rotting

These photographs were taken at sites where wooden houses were built.

As can be seen from the photographs, the jute has already begun to destroy the wood, although the log houses are still under construction. The rotting of jute or flax is due to its natural origin, that is, jute contains a lot of microorganisms that, when exposed to a humid environment (and wood has a moisture content of 30-40%), begin to instantly multiply creating favorable conditions for the development of various fungi, which immediately begin to infect the tree.

And if you can fight the external manifestation of fungus (clean, sand, paint), then how to deal with fungus that has already formed in the inter-crown grooves.

And remembering the quality of jute (flax) as hydrophobicity (moisture absorption), the fungi will receive constant nourishment and their population in the grooves of the log house will only grow.

And the scary thing is not that the wood will begin to deteriorate, but that the fungi, as they multiply, release spores that can cause various allergic diseases.

Articles about interventional insulation

Jute and jute fiber characteristics and disadvantages

What thickness of jute insulation is best to insulate a house made of timber?

Houses made of timber are different. There are houses made of glued and planed profiled timber, and there are wooden houses made of ordinary sawn (unplaned) timber.

Accordingly, each type of timber is recommended to have its own inter-crown insulation made of jute. For example, the walls of a house made of laminated and planed timber have fairly clear parameters and are of better quality. Interventional grooves in the walls of such wooden houses are, as a rule, minimal. In this case, we can recommend interventional jute 5-6 mm thick, laid in one layer.

In rare cases, the technical specifications for the assembly of such walls indicate insulation with a thickness of 8-10 mm. The width of the tape in these cases depends on the width laid by the designers in the inter-crown groove.

Photo: construction in the Moscow region of a cottage village with houses made of timber with natural humidity.

For houses made of ordinary unplaned sawn timber it is recommended minimum thickness interventional insulation in the region of 8 mm.

This option is often used: take a jute tape 5-6 mm thick and lay it with a fold on one or both sides. Thus, in the edge areas of the timber between the crowns, a thickness of the inter-crown jute tape of 10-12 mm is achieved.

Nuances of choosing interventional materials

In wooden houses made of ordinary sawn timber, in addition to the importance of selecting inter-crown insulation according to thickness, the correct installation of the dowel in timber wall and its qualities.

To prevent the sawn timber of natural moisture from twisting, it is very important to install round wooden dowels in the timber in a checkerboard pattern at intervals of at least one and a half meters.

Advantages of inter-crown insulation made of jute for timber

Choosing inter-crown insulation is a complex and responsible process, especially when it comes to a structure such as a bathhouse.

It simply must retain heat well, therefore, the insulation has a serious responsibility, which it, of course, must cope with. In this regard, I would like to note the interventional insulation made of jute, which is preferred by many experts, calling it the best option in terms of value for money.

Before we begin the story about its advantages, let us draw your attention to the fact that we are talking about insulation made from natural material - fibers annual plant jute, which grows in South-East Asia, China and Kazakhstan.

The price for such inter-crown insulation is not high, but this is not its main advantage, especially if you are talking about insulating a bathhouse. The fact is that jute is very strong and resistant to rotting. That is why it is used to sew bags for storing various crops.

Advantages of choosing materials for timber

But the most important thing is that jute is able to remain dry.

Even if the relative humidity around it, let's say, is 80%! Agree, this material is indispensable for a bathhouse, and therefore it is actively used for insulating buildings made of timber, rounded logs, and frame-panel structures. Why did we highlight the options? wood construction? The fact is that jute is ideally suited to wood in terms of its technical characteristics.

Watch a thematic video on choosing inter-crown insulation for timber:

In particular, we are talking about the capillary structure of the fibers, low thermal conductivity, and excellent natural ventilation.

In addition, jute insulation has a high surface density, and this indicator is achieved not in the same way as in many synthetic materials, by the method of chemical gluing, but thanks to the so-called technique.

Choosing interventional insulation for a wooden house

needlepunched What does this mean? The fact that such insulation is durable and also absolutely safe from an environmental point of view. The last nuance is important; the insulation for the bathhouse will be regularly exposed to high temperatures Therefore, in this case it should not emit fumes harmful to human health.

Question answer

We publish a typical question from a buyer from a region of the Russian Federation and our answer:

Buyer Message:
I need jute thickness 8-10 mm 800 m (100 mm) 800 m (150 mm) and 160 m (20 mm) and delivery to Kaluga

Our answer:
Then, if you are an individual, and not an individual entrepreneur or LLC, then you will need to pay for the goods on our SBERBANK card before Monday - November 7th.

If you pay before November 7, we will send you the agreed interventional insulation to you - according to the details that you give us after payment.

If you agree, then write a confirmation, we will send you a card number to pay for the goods.

Conclusion

When choosing high-quality inter-crown cushioning materials for a house made of timber, we advise you to get qualified advice from our company. Telephone numbers for consultations on the choice of inter-crown insulation for timber are listed in the header of our website and in the section contacts.

The use of interplanetary sealant in the construction of a house from profiled beams

In this article we will review and compare options for using interdisciplinary sealants in the construction of houses from profiled beams.

One of the characteristics of the work of wooden houses (including houses made of profiled beams) is that, under the influence of environmental conditions, the elements wooden structures can change their geometry to some extent.

This leads to the creation of a gap between the structural elements of the wall and, consequently, reduces the thermal insulation properties of such a structure.

Therefore, in practice, the construction of wooden houses has become a widespread use of various interplanetary seals.

It should be noted that when constructing houses from profiled beams, the use of intertwined spacers is determined by the properties of the upper and lower surfaces of the beam. In this regard, the main possibilities for using alternating sealing materials in the construction of houses from profiled beams are:

1. Use of jute and ginatin fillings.
   This option is traditional for wooden housing construction, but when building a profiled beam with a “main” profile (Fig.

   1) the use of jute and lornokine strips is difficult because

   How to choose a thermal insulator for an intervention house

   Beam profiles do not have large installation holes sealing tape. For this profile these seals can be used up to 3mm. In this case, they do not have the properties of filling the slots between the crowns, the appearance of which is possible due to the reduction of the house.

   This confirmed the traditional sealing of walls in Russia.

2. Using polyethylene foam sealant.
   Polyethylene sealants (proven as a substrate for laminate flooring) are highly resistant to moisture, good thermal insulators are not contaminated by various bacteria and fungi, and they are not interested in rodents and insects.

   To be thinner than jute and laminate, polyethylene foam tape can be placed between rings in a rod that does not have holes in the profile.

   But due to the low thickness and properties of the “dissipative” foam, polyethylene tape will not be able to close the gaps caused by possible deformation of the rod.

3. Use of foam rubber (EPDM) sealant (Figure 2). Self-adhesive foam seals (commonly used to seal window frames) do not contain the defects associated with previous options.

   These seals are easily inserted into the profile groove (Fig. 3) and retract their shaft when the shaft is deformed, which even covers very important slots (up to 7 mm). In addition, a number of Finnish companies that are leaders in the construction of wooden residential buildings are currently using this seal (Figure 4).

Modern people have long been accustomed to the fact that it is customary to use apartments in high-rise buildings as housing. They are built from foam concrete and brick. To insulate the walls in these buildings, materials of synthetic origin are increasingly being used, which, although not harmful to human health, are sometimes unable to perform their direct functions.

That is why residents of megacities are trying to move into houses from natural wood. If this is not possible, then you can build a house outside the city.

For this purpose, logs or beams insulated with jute thermal insulation are usually used.

Types and features of jute insulation

Before you lay jute on timber, you should become more familiar with the varieties and features of this material. It is of natural origin, so it is close to dry wood. We can consider that jute is a dry grass, a spinning crop that successfully replaces flax.

Modern jute thermal insulation has excellent characteristics, including:

• ability to seal joints;
• biological inertia;
• no unpleasant odor;
• tight fit to timber and logs;
• vapor permeability;
• rot resistance.

Additional benefits

Jute insulation is also quite dense.

If you purchase high-quality jute, its density will be 60 g/m2, while the layer thickness can be up to 10 mm. The fiber length does not exceed three centimeters.

You can find jute insulation in several varieties; in the first case, felt is added to the material in an amount of up to 15%, in the second - flax - up to 50%. Pure jute and jute with admixtures of flax are produced in rolls of different widths.

Selection and installation

Before you lay jute on the timber, it is important to choose the right material.

It is necessary to begin insulation work only some time after the completion of the house. During this period, the wood will reach the desired level of humidity, and the walls will shrink. But even after thermal insulation, the inter-crown insulation will allow moisture to pass through, which comes from the timber or log.

Using thermal insulation, it will be possible to fill the joints to prevent the formation of cold bridges.

Choosing a thicker seal will ensure ease of installation. The material should be placed in the connecting groove so that it does not move, and after it is pressed with a log, the insulation must be fixed with a stapler, installing the fasteners at a distance of 250 mm. If you purchased a ribbon that is too wide, then its edges must be folded inward. The tape should also be located in the bowls.

Features of caulk

Laying jute on timber is prerequisite insulation.

Some craftsmen believe that there is no need to caulk joints, but in practice this procedure is still required.

Once the log has settled, it can be twisted violently. On one side, a 0.5 cm gap is formed, while on the other side the seal is tightly clamped.

In this case, caulking helps, in which it is best to use tow or tape.

This must be done only a year and a half after the construction of the house. In some cases, laying inter-crown insulation does not involve tucking in the ends of an overly wide tape. In this case, the ends will hang on both sides. After the house has settled, the hanging ends can be driven into the joints.

However, in this case, you may encounter a problem, which is expressed in the fact that after 2 years the seal will deteriorate under the influence of ultraviolet radiation, moisture and wind.

In the end, you will have to hammer in low-quality material between the joints, which does not always allow for complete sealing.

Why choose jute sealant?

If you have not yet decided whether jute will be laid on timber or some other material, then you should familiarize yourself with this issue in more detail.

First of all, they begin the construction of a wooden house, pursuing main goal– environmental friendliness. To caulk the joints between the crowns, you can use other materials, namely:

• flax wool;
• liquid acrylic sealants;
• linen rope.

One of the advantages of jute over the above materials is that it does not wrap around the drill.

The insulation has such a structure that when drilling, the metal does not adhere to the thermal insulation, which is very convenient when working. In addition, jute is ready to last exactly as long as a wooden house will last.

The declared service life of thermal insulation is 75 years.

Some owners of wooden houses do not use jute to insulate the crowns of timber, preferring acrylic sealant.

Experts believe that the feasibility of this approach may be questionable. Although the joints will not allow the cold to pass through, the walls will lose their ability to breathe. The steam will stop circulating and the wood may begin to rot.

Laying features

You can independently lay jute on timber; the specifics of this work require compliance with several rules.

It is important to place the tape on the connecting groove. It should fill the space of the bowls.

The material is laid without bends if the house is built from ordinary logs or glued profiled timber.

Sometimes the insulation is folded on both sides; this solution is suitable for houses made of chopped or rounded logs. The material can also be laid with one-sided bending; this method is suitable for structures made of planed timber.

It is also important to take into account the dependence of the thickness of the insulation on the wall material. If it is intended to use laminated veneer lumber in construction, then the insulation should have a thickness of 0.5 cm.

When the system is based on a rounded log, it is necessary to purchase insulation with a thickness of 0.8 to 1 centimeter. If you plan to use chopped logs, then the jute should have a thickness of up to 1.5 cm.

Work technology

Quite often, novice craftsmen wonder how to properly lay timber when jute insulation is used.

The work will consist of several stages.

How to choose inter-crown insulation for timber? Reviews about manufacturers

The first involves the distribution of insulation along the inter-crown grooves, on next stage the material is fixed using a stapler. Next, the next log or timber is laid, and at the end of the crowns the thermal insulation is cut with scissors.

Once the installation of the frame is completed, the protruding parts of the insulation can be caulked inside.

It is important to pay special attention that the grooves must be completely filled with thermal insulation. When installing log walls that will be assembled manually, it is necessary to select thermal insulation depending on the quality of the roof joints. The neater and denser they are, the easier it will be to insulate the walls. But, as practice shows, log elements assembled by hand are of average quality. In this case, it is important to know how to properly lay jute on timber.

The mentioned insulating material is combined with an analogue in the form of tow.

Lay out the thermal insulation with your hands and place it in the cuts and grooves. In the place where the thickness of the jute tape is sufficient, you can fix the tow with a stapler.

Recommendations for laying jute between rounded logs and beams without longitudinal grooves

Quite often lately, home craftsmen have been laying jute.

Profiled timber or rounded logs are insulated in one layer. When using conventional timber, thermal insulation must be laid in two layers. This rule will be more applicable to timber houses that do not have longitudinal grooves.

This building material does not have recesses for insulation; it is not possible to form a thermal lock in it, so it will be subject to blowing.

Conclusion

A prerequisite for the construction of a wooden house is the laying of jute on timber. Inter-crown insulation made from natural materials is preferable to synthetic sealants, which, although easy to use, do not allow the wood to breathe.

As practice shows, the technologies for insulating wooden residential structures, which were popular with our ancestors, are not only more familiar, but also more reliable for Russian residents.

Before laying the frame, beams for beams (logs)? Tips, reviews, recommendations

During construction wooden frame, whether it is a frame for wooden houses from a bar or a frame wooden bath, naturally asks the question - how to build a log from a wooden (log) bathhouse?

In the photo there is a lining between the logs of a wooden frame made of moss - Kukushkin flax.

Since the composition of wooden cabins, natural material has been planted in the intermediate space, mainly from plant origin, since it was easier to obtain and use everywhere.

What to choose when installing a wood heater - tips and tricks

Before laying the frame, beams for beams (logs)? This issue has been of interest to the construction of wooden houses and wooden baths for many years.

What construction materials made buildings in ancient times?

For a long time, Russia used materials such as crane grass, moss, and downy pine wood to house houses.

The most popular method for this task was drag and drop once the assembly of the apartment walls was completed.

Photo: This usually looks like a tugboat that heated the gaps between the logs in ancient times.

The hell, using a tool specially designed for this purpose, was cut into the space between the magazines.

In addition, this must be done both externally and internally. Otherwise, the entire building may be short after use.

It should also be noted that with proper handling of the rubber parts, the height of the walls increased by 10 centimeters. Considering that for a log cabin, as well as for modern buildings, the characteristic shrinkage occurred when pressing on the strands of wood, as a result, a year after the construction of the house, the walls began to be damaged again.

If the house is made of wood, it is better not to replace it. In addition, such models have amazing small gaps, in which it is quite difficult to place the patch correctly.

Photo: excellent choice moss with the exotic name “cuckoo lan” is used for laying logs.

You can buy this material from our company. The store-warehouse is located in the east of Moscow, in Moscow.

An equally popular material was also mosses, which are not susceptible to rotting under the influence of the environment and protect the wood from which the house was built before this accident.

Photo: A good intervention heater can be obtained from sphagnum moss - a bog.

Fuzzy wood, which is essentially cellulose, is a material made up of very short fibers.

The resulting problem is that when it becomes saturated with moisture, once shrinkage begins, it becomes less elastic, which reduces the tightness of the seal. Therefore, the main condition for long-term and effective use fluffy wood is counted between the logs so that it does not come out of the gutters and is not wet.

Photo: on the left side of the photo - jute and on the right - llena llena (flnovatin).

The main layers between the logs were bath and tree moss, flax fiber, jute fibers.

The use of these plants for masonry among the crowns of a wooden house was not only practical, but also very functional. All of them are hydrophobic plants and have excellent hygroscopicity, as well as sphagnum moss, which contains antiseptic substances.

Such intervention insulators have been and remain the main tool for heating a wooden house, but are now available for some purposes thanks to advanced modern technologies.

In the same way, some manufacturers initially impregnate materials with antiseptic compositions to prevent decay and improve their quality properties.

The photo shows a high-quality material for laying wooden chalets between logs - jute tape is a dye.

The need for installation for a wooden house or bathroom with an intervention heater is mainly due to the provision of an appropriate microclimate in the interior of the house, that is, directly with insulation.

Tomorrow, tapes, linotin and other heaters will securely lock the joints between the logs, insulating cracks and cracks. Thanks to their special properties, these materials perfectly absorb moisture not only from the space between the springs, but also from the surrounding air, as if it is too dry, it returns moisture. Today, having considered experienced builders- laying, wooden house and logs, the most popular material for the construction of log cottages and bathhouses from logs, load-bearing houses and other wooden buildings, jute tape.

The photo shows a wall covering between cylindrical logs with jute tape.

This type of insulation - pads - is made from jute fibers, which grow mainly in countries with warm and humid climates, such as Bangladesh, India, etc.

The plant consists of the following: When the time is right, the jute with your hand is cut as it grows in water. It is then dried and washed in running water to facilitate fiber separation. Only after these procedures are implemented, the jute goes to the processing plant, where the needle is a non-woven fabric for laying logs and wood fibers. Depending on the desired end result, jute fabric has different thickness and thickness.

For laying between crowns of logs - a wooden house, use dressing tape cut from canvas and rolled into rollers of a certain width. Standard cuts can be called cylinders with a width of 10, 12, 15 and 20 centimeters. The cylinder is unloaded onto a log bowl or inside a rod and attached to it with a construction clamp.

If desired, the jute tape is treated with an antiseptic.

conclusion

This is our answer, consultation, guidance and feedback to the question - what would create a house from a wooden bathhouse and frame houses and log baths, including round wood and manual cutting of logs.

All these soft materials are available at our warehouse in Moscow, where you can order and buy them. Do you need more reviews, tips and advice from experts?

As you know, you have to pay for everything. The craving for environmental friendliness and comfort is no exception. If you have chosen a log house as the material for your home or, say, a bathhouse, be prepared for non-standard approaches to thermal insulation. Although the timber itself usually does not need insulation, at least externally, the joints of the logs (or crowns) will still have to be insulated.

For this purpose, inter-crown insulation is used. Which inter-crown insulation for logs should I choose? Let's learn not only about popular materials, but also understand the principles of thermal insulation of seams.

Timber insulation scheme

The joint of logs is the most weakness log structures. Firstly, this is where the wall thickness is smallest, and secondly, initially it is an open gap into which moisture and wind can penetrate. To protect this “deprived” area of ​​a wooden house, insulation for logs is used.

This material performs several important functions at once:

• Reliably isolates the space between the crowns of the house, inaccessible for inspection, from water and moisture, which, over time, can seriously damage the house;
• Does not allow air to blow through the cracks between the logs;
• Compensates for changes in wood volume that occur due to seasonality and changes in temperature and humidity.

The timber is insulated both at the construction stage and after, the so-called caulking of the log house.

As a conclusion: The inter-crown seal serves not only as a heat insulator, but also:

• Performs waterproofing functions;
• Increases the service life of the building.

The choice of such material must be approached very carefully.

Selection principles

What properties should inter-crown insulation have to insulate joints?

1. Must be resistant to water and moisture, which can fall on it as a result of precipitation. The material must protect the timber from mold and mildew and their consequences, rotting, as well as insects. Some of the best and at the same time popular materials in this direction are flax and jute. Due to the natural resin lingina included in their composition, jute and flax do their job perfectly.
2. Fire hazard. Although wooden building more susceptible to the fire element a priori, choosing the appropriate material for insulating the seams can complicate the situation. But here everything is as usual, natural ones burn better, synthetic ones burn poorly or don’t burn at all. Linen insulation is most at risk. To increase their fire resistance, the tapes are impregnated with fire retardants. However, this is not a panacea, but only a slight improvement in their fire-resistant properties.
3. Life time. The heat insulator is installed during the construction stage, which means it will be difficult to replace it during operation. Therefore, it is best to choose a material that, in an ideal situation, will be comparable in service life to that of the wooden house itself.
4. Should not be of interest to birds. One of the problems for owners of wooden buildings is the attack of birds on the insulation between the beams. They use the material to build their homes. Most of all they like flax and moss. When using these materials, you need to regularly check the condition of the seams and seal the resulting gaps.
5. Quite dense, with moderate thickness. In most cases, insulation with a thickness of 8 to 10 millimeters is sufficient, provided that its density is 700 grams per square centimeter. The following indicators of the ratio of thickness and density can be considered acceptable:
   1. 5 mm - 400 grams per square centimeter;
   2. 6-10 mm - 600 grams per square centimeter;
   3. 10-15 mm - 800 grams per square centimeter.
6. Shape of the material. At the construction stage, tape insulation is used. It is convenient to roll it out directly onto the deck and secure it with a construction stapler. Materials in the form of tow are used for caulking (laying cracks) between the crowns.
7. Good thermal resistance. In fact, this is one of the most important indicators. Natural materials in our case, they cope better with the task of preserving heat.
8. No harm to health. Most thermal insulators used today comply with this rule. However, there are (usually cheap) materials that contain and emit substances harmful to humans. For example, when Izover is damaged, allergic dust is released.
9. Elasticity and compensation properties. Wood has the ability to shrink and expand. The inter-crown insulation must be able to compensate for changes in the distance between the crowns. To do this, it must be both dense and elastic.
10. Material width. This indicator is directly related to the climatic conditions of the region in which it will be used. If the average temperature does not exceed -20 degrees, a tape 10 mm wide is enough, at -30 you need 12, and if it’s -40 outside, all 14 centimeters. For beauty, it is important that the tape is not visible from under the log, so it is good to purchase a product that is 5 mm narrower than the groove of the log. If this material is to be used for caulking, you need to purchase 10-15 percent more of the area of ​​the groove in which it will be laid.

Having dealt with the main principles, we can pay a little attention to three specific samples from natural and synthetic materials and determine which interventional insulation materials are better.

Old timers

There are materials that were used for our purpose in ancient times, since a wooden structure in Rus' is not at all a novelty. Let's see which interventional insulation is better.

Moss

There are several hundred varieties of moss, but only two of them are used in construction. These are sphagnum moss and cuckoo flax. The first one is white, and the second one is red.

Sphagnum moss has very high insulating properties. Compared to its brother, it has more light color. It contains antiseptic substances. It owes its use not only in construction, but also in medicine to the latter.

Sphagnum moss

Flax can be harvested by hand, but since this is a northern plant, it is not available in all regions. There are organizations that sell moss briquettes for construction.

After collection, the moss needs to dry. However, the rash process does not last long - 1-2 weeks. Buying sphagnum in construction company, you receive a ready-to-use product. However, completely dry moss is never used for insulation. After laying on the timber and pressing down with the upper crown, the moss should release juice containing all the same notorious antiseptic substances, which in the future will protect the lower frame from rotting and insects.

The moss is placed on the crowns in large piles, which are pressed down by the next log. If you put a small amount, cracks may form after drying and even through holes. It is necessary to make an overlap on the walls. In this case, you can caulk the timber after it dries.

• Buildings insulated with moss have a special aroma. People suffering from asthma feel relief in such buildings.
• Moss is hygroscopic - it absorbs moisture and leaves the log dry. Natural, vapor-permeable material does not harm, but rather creates a microclimate in the house.
• The disadvantage of moss is the difficulty of laying when installing the timber, as well as the interest from birds. These creatures also prefer to use not synthetic, but natural materials for their nests.

The material in the form of a ribbon is made from natural linen. After this, it undergoes processing on a needle machine, which increases the natural properties of this material.

Industrial flax, which serves as the basis for the production of this material, is grown on special “dry” soils. Flax contains 4 main components:

• Cellulose;
• Water;
• Wax;
• Lingin.

The latter, in turn, connects ordinary, fragile substances into one whole, wear-resistant structure. Linen wool is one of the most durable natural insulation materials.

Synthetic material. Created on the basis of polyesters and has Finnish roots. Three significant advantages over natural insulation:

• Life time. Manufacturers claim that the service life of the material reaches 200 years, and this is more than enough for a wooden structure.
• Lack of interest in birds. Only natural insulators are suitable for birds.
• Avatherm is a fire-resistant material that during construction wooden structure has special meaning.

The seal is available in the form of strips of different lengths and widths. Thickness options available: 8.15 and 20 mm. The width can be 100-200 mm. "Avaterm" is sold in rolls 10-20 meters long, depending on the thickness. Options are also available for laminated timber.

The price of the material is also quite reasonable.

Other

Of course, the three examples we have given are not full list insulation between logs. For these purposes use:

• Sheep wool;
• Jute;
• Polytherm.

We will talk about all these materials in separate publications. For example, many people are interested in what is better to use, flax or jute, for inter-crown space.

And someone asks: what is better, jute or moss?

We will devote a separate article to jute insulation in the near future.

By the way, the issue of . This approach can greatly protect the seal.

This article deliberately did not discuss all the issues related to seals. However, we have collected the most important and useful. Interventional insulation for timber, which one to choose for your home depends on various factors and the main ones are the financial component and efficiency. The selected option must match overall project building.