media concept How to improve health and refuse utility bills?
Most of the population in Belarus, Russia and other countries is very cautious about the use of chemicals in food and drink - preservatives, emulsifiers, dyes, antioxidants, other food additives, although they buy food, as a rule, without reading its composition on the packaging. People are very active in protesting against the use of chemicals in agriculture - herbicides, pesticides and even fertilizers. Everyone unanimously stands up for environmentally friendly products, constantly talks about it, but almost no one really knows what it really is and how to distinguish it from polluted. People are already accustomed to the mass introduction of artificial, that is, chemically obtained substances into the category of things and do not protest, apparently relying on the fact that they will be able to make the right choice themselves. Therefore, a much smaller number of people control the quality of their "second skin" - clothes, shoes, accessories and other wearable items, meticulously finding out the proportion of synthetics in them and trying to choose items with a predominance of natural components.
It may seem incredible, but the same people who strive not to use "synthetics" in their everyday life do not think about the fact that their home is largely the same "synthetics", that is, the product of the chemical revolution.
If, when buying a suit or boots, we try to choose those models in which there is generally less “synthetics” of any kind, without going into the differences between the types of synthetic substances, then when building or updating our home, most often we do not even ask ourselves about the composition and origin of certain building materials.
Having chosen a suit according to the criterion of the naturalness of the fabric, we usually do not think about the naturalness of the lining, not to mention the material of the threads, buttons and other things. In the case of housing, such a lightweight approach is unacceptable, if only because there are much more arrays and surfaces of building elements, which means that the flow of influences on a person is many times more powerful.
Those who ask such questions usually reassure themselves that everything will be all right if the main building material of the house is brick or wood, which does not arouse suspicion due to its centuries-old experience. But they forget that even 60–70 years ago a log thinner than 40 cm in diameter was not used in housing construction due to large heat losses (and now finding such a log is a problem) and that in such a complex system as a house, there are other materials, the effect of which cannot be compensated by brick or wood walls.
To an even lesser extent, designers and builders care about the environmental friendliness of the materials that make up buildings. The reason is clear - not for myself. Even today, when it is possible to choose and buy materials of different levels of environmental friendliness, one often has to observe the picture of the construction of an “elite” house, during which the walls are lined with bricks on the outside, and thermal insulation from phenol-resol foam or other harmful polymer is laid inside.
natural alternative
Have you seen swallows or wasps near the nest? These are dwellings perfectly adapted to the environment, weather conditions, life rhythm and natural cycle, which are in close connection with Nature and Space. Is it possible to use some methods of building bird and wasp dwellings in human habitation?
Building a home out of straw bales may seem like a crazy idea at first glance. But it is well known that straw bales combine all the properties of an excellent building material: they are cheap, durable, easily accessible, environmentally friendly and have good thermal insulation. Straw bales are durable as long as they are protected from penetrating and rising damp. Their insulating properties are much better than those of wood or brick. A straw block with a typical thickness of 50 cm has excellent thermal insulation properties, which improve after plastering. Moreover, the wall remains "breathing" an order of magnitude higher than a wall made of natural logs. Thick walls with their structural surface have particular advantages. "Living" and "breathing" structures create an extraordinary indoor climate, allow you to feel confident and secure. Strict rectangular surfaces and smooth straw block walls can also be created, but this will require more skill and effort. They are not characteristic of this natural material. Houses made of straw cubes, on the contrary, will please the eye, delight with soft lines. Thanks to the easy processing of the straw blocks, round shapes are also possible. Niches or round arched windows and doors are made using an ordinary electric saw, cutting the desired shape in the straw. Although if the owner gravitates toward even planes and right angles, there are no problems either ...
Warm straw nest
The eco-house project is based on the principle of compliance with the theory of sustainable development - development, in which the satisfaction of the needs of the current generation does not jeopardize the ability to meet the needs of future generations. The environmental imperative is included in the concept of the project as a component of the dominant.
The project, in addition to the general requirements for the construction of the building, is drawn up on the basis of the following provisions:
Planning and volume decisions should take into account the peculiarities of the landscape and construction technologies and ensure the maximum ecological quality of the habitat - internal and external - at minimal cost;
The house and the plot make up a single artificial ecosystem that does not harm the environment and the health of current and future generations;
The total energy consumption (especially fossil fuel energy) both in the construction process and in the operation of buildings should be kept to a minimum;
Maximum use of environmentally friendly materials, respect for local flora and fauna;
Socialization of the environment.
The planning of the territory was carried out taking into account the use of the principles of passive "solar" architecture and was aimed at the socialization of the territory, the development of a human-friendly environment, which should become a "small home" for the current and future generations of residents of the eco-house.
This dictated the planning decisions for the development of the territory and the "sunny" architecture of the buildings: a small pool and a sauna (at the request of the residents), a fireplace can be provided in a straw house. The eco-house can be equipped with local low-cost permaculture systems for the disposal of domestic wastewater, which improve the fertility of household plots and have been worked out in the climatic conditions of Belarus.
A straw eco-house is usually made energy-passive: building envelopes have a heat transfer resistance coefficient of at least 8 (modern SNiPs require 2.5), only local environmentally friendly natural materials are used (straw blocks are delivered directly from the field during cereal harvesting), which has a good effect on value terms. Earthmoving and lifting mechanisms are not used during the construction of the eco-house, since the walls are light and do not require a large amount of reinforced concrete in the foundation, which allows you to save the grass cover and not injure the land, which our ancestors considered (and not without reason) to be “alive”.
The eco-house was built using the already well-established eco-technology in Belarus for the construction of enclosing structures (a plastered or plasterboard-covered wall made of straw blocks) in a frame version (the load is carried by a wooden half-timbered frame).
This technology provides the following parameters:
Energy indicators. It provides a reduction in energy consumption during construction by at least 300 times compared to brick and gas silicate building envelopes with modern insulation per 1 m2 of the total area.
Thermal conductivity coefficients of enclosing structures. The thermal conductivity index of the floor without heating is 0.23 W/m2K, thatch walls - 0.12 W/m2K, roofs - 0.19 W/m2K.
The need for energy for heating.
Is less than 40 kWh/m2 per year.
High fire safety (after plastering).
Confirmed by official tests. The structure of the plastered straw wall has been officially tested in the USA and Germany and classified as fire class F119 (a metal truss, for example, belongs to class F15, i.e. loses its load-bearing capacity 15 minutes after exposure to open fire).
Construction time. It takes about 14 weeks from the start of earthworks (foundation) to the moment of settlement, if the construction is carried out rhythmically.
Construction cost. The cost per 1 m2 of the total area with the finish "under the wallpaper" in the basic version is about 260 USD. e. (in 2006).
Implementation experience.
In Belarus, the first rural eco-houses made of straw blocks were built in 1996. In 1999, after official testing, the Ministry of Construction and Architecture of the Republic of Belarus recommended the projects of these eco-houses for reuse.
Their construction continues in increasing volumes, and, having begun as the construction of "housing for the poor", has turned into "housing for the middle class and smart rich." It is this part of the population that today is concerned about the environmental quality of their homes (problems of the impact on the health of polystyrene, polyvinyl chloride, phenol formaldehyde, etc.) and heating costs, as well as the environmental problem of global climate change. It is already clear to everyone that gas prices are unlikely to fall in the future, but will only increase many times over. The requirements for joining the WTO are to raise energy prices to the world (European) level. By 2011, in Russia, the domestic gas price will reach the European one (230 USD per thousand m³ in 2006). Heating of 1 m3 of thatched eco-houses consumes 3–4 times less energy, which has been proven by practice…
All necessary regulatory and technical documentation is available. For the first time in the history of the CIS, developers were awarded the International Prize for Energy Efficiency and Sustainable Energy in the Housing nomination (Austria, 2000), and were nominated for the UN Habitat Prize and a number of other prestigious international awards. In 2003–2004 a number of foreign experts, including German, Latvian, Lithuanian, Russian, Ukrainian, learned this eco-technology during the seminars of the Belarusian branch of the International Academy of Ecology (MAE BO). Note: we are not with them, but they are with us.
From the Bible it is known that the wise Solomon for the craftsmen who "knew how to cut wood" gave values equivalent to the cost of several cities. Why? Esotericists know that if a person interrupts someone else's life (for example, a tree) to create items that satisfy his basic needs, then he bears karmic responsibility for this. Therefore, the skill of cutting a tree in ancient times consisted in the ability to reduce or remove this responsibility, preserve the purity of the energy of the tree and increase its service life, which contributed to the formation of a favorable energy environment in the built dwelling. Bits of this knowledge have been preserved by the Eastern Feng Shui teaching, but still today we know practically nothing about it.
At best, they will tell you that the forest must be prepared in winter and at a certain phase of the moon ... Straw is another matter: the plant has gone through a full development cycle, the energy of the stem is powerful and positive, no special skills are required when harvesting, and the energy of the home is excellent. This is emphasized by everyone who lives in eco-houses made of straw. For example, residents of the Druzhnaya eco-village call straw houses “alive” and note that they “sleep well” in them. This is probably why the sites for the foundations of ancient religious and defensive structures, for example, the pyramids at Giza or the Great Wall of China, were lined with a thin layer of straw. Previously, Belarusians also used the energy of straw: when creating straw "spiders" that were attached over cradles and protected children from "evil spirits" (and practically blocked the effects of geo- and anthropogenic zones), thatched roofs, mattresses (still considered to be curative), utensils, etc.
The first and most important thing is environmental friendliness. We use the most environmentally friendly materials, with minimal industrial processing. Expression: the level of included energy. In Russia, the term is not used; in Europe, this term is used much more often. What does it mean? The amount of energy that was expended in all stages of the production of building materials and the construction of a house. Starting from the stage of resource extraction, material processing, delivery and construction. If we compare a house built of brick and a straw house (assuming straw grows within a radius of 50 km), then the level of included energy in a straw house will be 1000 times less. A thousand times less energy needs to be invested in building a house from straw. This figure is surprising.
Second. The highest degree of energy efficiency. If we compare the walls in terms of energy efficiency, then in order to achieve a result from a straw wall 45 cm thick, a brick house must be 6 meters thick. If we talk about mineral wool and polystyrene, then 45 cm of straw can be equated to 30 cm of mineral wool and polystyrene. If compared with wood (solid wood, glued beams), then the thickness will be 90 cm. On the market 22, 24 cm and everyone says that it is very warm. There is no more than 28 cm on the market. The heat resistance of a straw wall is maximum and equal to R=9.
Third. Microclimate. The wall of a straw house is vapor permeable. There are no cracks in the wall like in a wooden house, and the air is always fresh. Straw is a fairly warm material, and besides, it is quite well blown. But, this does not mean that the straw gives a draft. Straw houses are well protected both indoors and out. No one will ever know what a smart straw house is made of. The exterior of the house is finished in the same way as houses made of other building materials. In the process of finishing houses, highly vapor-permeable plasters and materials are used. Straw house ventilation is diffusion (diffusion is the movement of gases), air penetration at the molecular level. The average annual humidity level is 50%. In a stone house, when it is well heated, the air is always dry, and special steam generators are bought for humidification. The wall of a thatched house is a recuperator, i.e. part of the warm air is returned back to the house with fresh air. There is no ventilation device, the ventilation function is performed. Those. the air quality in the house is in perfect condition.
Fourth: Biopositivity. It is interesting to note that the quantity and quality of sleep is much better than in city apartments.
Fifth: The soundproofing of the straw wall. The material is an excellent thermal insulator. If you have enough high-quality windows in your house, and your children go outside the window and you want to tell them something, they will not hear you. Very high degree of sound insulation.
Many people, having heard about, will surely immediately remember the tale of the three little pigs, in which the most stupid, lazy and not far-sighted piglet decided to use straw as a building material. But when used and materials used, straw can be one of the best options for building. Why? This issue is worth looking into in more detail.
Of course, building a house using only straw is simply impossible. Therefore, straw frame houses are usually called so. In this case, a wood-metal frame is used as the main structure, and the main purpose of the straw is to provide the required level of heat and sound insulation. And I must admit, straw copes with this task just fine.
Most of the work is done in the company's workshops. Thanks to this, ready-made parts are brought to the construction site. Their collection takes a minimum of time - it usually takes no more than one week to build an average house. This indicator can be called one of the best to date. Neither can boast such a short construction time.
What are the benefits of straw houses?
Many readers will probably have a question - why today more and more people who decide to acquire their own home are choosing a house made of straw and clay, and not classic wooden, brick or frame? This question should be answered in as much detail as possible.
- Light weight. Any person understands that pressed straw weighs several times less than an ordinary tree, not to mention a brick. Thanks to this, work takes less time. It also allows you to get rid of the need, the filling of which is very expensive and takes a lot of time.
- Raw materials are as accessible as possible and easily renewed. A tree, in order to grow to a size suitable for construction, must grow for decades. The manufacture of bricks in general is a complex technological chain. But the straw grows in a matter of months. And the cereal plants necessary for obtaining straw grow in almost all regions of our country. This makes building straw houses a very easy and affordable option.
- The thermal conductivity of straw bales is very low - about 0.05-0.065 W/m*K.
To make it more intelligible, it is worth giving similar indicators for brick and wood. Different types of building bricks have thermal conductivity from 0.56 to 0.7 W / m * K. For wood, this figure is 0.18 to 0.23 W / m * K - depending on the species. This means that even on the most frosty winter days, you can comfortably live in your straw house, spending a minimum of money to maintain a high temperature. In the summer heat, it will be quite cool in such a house - the external walls will heat up in the sun, but will not transfer heat into the premises, which allows you to refuse. - Straw easily maintains an optimal indoor climate. Therefore, being in one of these is very easy and comfortable.
- Low cost. As mentioned above, the price of this material is many times lower than the cost of other building materials, due to its availability. Replacing an expensive foundation with a simpler and cheaper one (pile, sometimes tape) allows you to further save money.
- Compared to, straw houses do not need frequent replacement of artificial insulation (its service life is usually from 12 to 25 years), without which it is simply impossible to be in a frame house during the winter months.
Read also
Projects of two-story houses from a bar
And this is not a complete list of reasons why people are increasingly choosing straw bale houses.
Is a fire terrible for such a house
Someone may be horrified by the very possibility of building houses from such a fire hazardous material. After all, one spark is enough to ignite the straw, and then a whole haystack can burn out in a matter of minutes.
But if we talk about a house made of pressed straw, you can forget about such dangers forever.
To begin with, straw bales are necessarily covered with a thick layer of clay, which does not allow fire to reach the straw. Clay is able to withstand the effects of fire for a long time without the slightest harm to itself.
In the voids of the walls filled with straw, there is practically no air left, which is needed to maintain combustion. Therefore, even when the clay is damaged and collapses, the straw only smolders slightly, not supporting combustion.
Laboratory tests show that such walls are able to withstand open fire for up to 2 hours. So, thatched houses can be called much less fire hazardous than classic wooden ones.
What a thatched house might look like
The light weight of the material and ease of installation allows you to build. This gives a huge scope for the imagination of designers, as well as people who decide to get their own home. All that remains for them to do is to tell the experts about their vision of the ideal home. In a matter of days they will be ready, and they will be able to choose the option that seems most suitable to them.
Thatched house with an unusual shape Building houses using straw does not impose the slightest restrictions on builders. Neither the thickness of the walls nor the set length of the source material limit the plans of the designers. Therefore, the house can really be anything.
Learn about the benefits of a straw house by watching the video
Do you want a hexagonal house? Specialists will be able to make your dream a reality. Or maybe you like unusual ones? Well, conclude an agreement with a construction company, and a round straw house will be erected on your site in the shortest possible time.
Thanks to Yevgeny Ivanovich Shirokov, straw house building is being popularized more and more in Russia. A person who knows literally everything about this segment. Evgeny Ivanovich, tell us a little about yourself.
Konstantin Nikolayevich, Head of Razekodom
I am Shirokov Evgeny Ivanovich, I was born in Moscow, I grew up in Khost, this is the Sochi region. Studied at MVTU im. Bauman, graduated with honors back in 1981. In 1984 he defended his dissertation there. After that, he spent 25 years in Belarus, worked at the Academy of Sciences, then was vice-president of the International Academy of Ecology. For the last 12 years until 2010, he was the head of the Habitat National Center. This center performed the functions of monitoring the state housing construction programs that were carried out in Belarus. In parallel with this, in the same period, for 5 years, I was an expert in the red-green faction of the European Parliament until 2000. I was often involved in work as an expert, through the UN, twice was the winner of the UN Habitat Prize, in 2000 I was the winner of the Energy global worlds award in the Housing nomination for the development of thatched housing construction in Belarus. For the last 5 years I have returned to Khosta, where we are creating a center with the functions of research and recreation. Now we are developing technologies that can dramatically improve the environmental friendliness of the human environment. This is a wide range of issues: the impact on human bioenergetics of enclosing structures, architectural forms, what shape a house should be, what to cover a tree with - that is, patchwork wax is produced, we deal with cleansing the body, both in coarse energy and in subtle energy, we are partly engaged in multidimensional medicine. In general, a whole range of issues that allows a person to live a free happy life. To do this, you need your home to be not just a place where you live, but a place that fully provides for you - a place of work. In Krasnodar, several projects have now been implemented: a house and a mushroom farm nearby made of straw panels 6 by 15 meters. This gives an income of approximately 450 thousand rubles in 35 days. Net income is about 100-150 thousand, depending on whether you hire people or you yourself. Such technologies, and they are quite interesting, because if you just go to the ground and dance there and do nothing, as the experience of many of our ecovillages shows, then a wave of reverse negativity arises, and it is impossible to look at it without tears. We also deal with synchronization issues. Why do people leave for land in settlements, and after 3 years there are all enemies? Because no one is synchronizing. What it is? When our ancestors went to the collective cultivation of the field, they sang together. They walked from the field - they also sang. We don't even sing in families now. If you sing together, there is a very high level of synchronization, in which case you run out of conflicts. The same is true in family relationships. If you have any problem - the last thing to figure out who is right and who is wrong. You will be right, but you will be left alone. The best thing is co-creation. If you have co-creation, you will automatically sync. You can’t sing, in extreme cases, sing “om” at least 3 times together, and you will already have a reason for conflict. When I studied the American experience of successful ecovillages, there are places where you want to return. We practically don’t want to return anywhere, with very, very rare exceptions, and I drove almost everything that we have. Because there is no synchronization, outwardly all people, it seems, on earth, dance in circles (by the way, it is also a good means of synchronization), but if there is no joint work, there is no joint creativity, then all this is doomed to conflicts.
Evgeny Ivanovich Shirokov, expert in the field of green building
Cost of straw green building
What can you say about those people who are customers of thatched houses? More often these are people who are looking for where it is cheaper, or are they still those who are interested in quality and environmental friendliness?
K.N.
There is an opinion in Russian society that straw houses are houses for the marginalized. But it's not. The most expensive hotel in the Krasnodar Territory is made of straw and the most expensive houses in the Krasnodar Territory are also made of straw. Rich people could build their houses even from Kara marble, but they build from straw. Why? Because straw is a biopositive building material. What is biopositivity? Any material affects your biofield, the more fossil fuel energy is spent on the production of building material, the more expensive and more negative it becomes. How is it defined? If you take a control group of 10-12 people, measure their biofield using the crown laboratory method, now there are a lot of devices. You measure "to", for an hour you place it in a reinforced concrete apartment, in a brick apartment, in a wooden house, in a gas silicate house, in an adobe house, and in a straw house. They put it in for an hour, the person comes out, the biofield is taken from him again, the second ones are subtracted from the first indicators of the biofield, and the result is averaged over the control group. You get a generalized effect of the influence of this type of building material and architectural form on human bioenergetics. Here's what we got, and what I was forbidden to publish: a reinforced concrete panel shrinks a person's energy up to 40% in an hour, a brick 25-30%, that is, even worse, it draws energy out of a person. Gas silicate is the same. The wooden house is neutral. The adobe house is neutral. Straw increases a person's energy from 5% to 15% within an hour. There are things that allow you to make healing beds. The straw panel can also be a healing bed. Recently, studies were carried out: people approached, the biofield was filmed, lay down for 10 minutes on a straw bed, after 10 minutes the biofield was filmed again. The minimum effect is plus 8%, the maximum plus 58%, that is, the biofield increases almost one and a half times in 10 minutes. And imagine you are in a house where all the walls are made of straw, and the house is also round, there are no corners in it that draw energy, and you also sleep on a straw bed. Before telling and recommending something to someone, I always conduct an experiment on myself, I make sure what and how. So here is my personal experiment - this is 3 years of life in a round thatched house in Belarus, where we checked our health quite often according to 26 parameters. Measurements showed that for 3 years of living in a round thatched house, my biological age has decreased by almost 25 years. If before that my biological age was greater than physical, then after 3 years of life it became almost 15 years less than physical. What is it connected with? This is due to the fact that the impact of the straw biofield on a person, plus the way of life, when you get up with the sun, lie down also in the sun, live in nature, you recover better than in any Kremlin hospital, better than any qigong and everything else. Therefore, such houses are healing and that is why very rich people are now building such houses for themselves. In Russian society, we work with customers like this: 15-20% are very wealthy people, and 75-80% are very poor people who do not have enough for a brick. Why? Because if you don't have the money to make a high quality finish, then you can buy a straw panel, it's not expensive. And you will assemble the house in 4-5 days, and then you will slowly finish it. That is, the technology is suitable for both the very poor and the very rich. And in this regard, I believe that this technology is the future.
E.I. Shirokov
Mice in a straw house
Very often people ask questions about rodents. In your experience, are rodents, mice in particular, really a problem in thatched houses?
K.N.
As 20 years of operating experience shows, and the first houses in the CIS were built 20 years ago, mice are not a problem if everything is done according to technology. Why are they not a problem? In order for a mouse to make a move in straw, which is pressed with a force of 4 tons, they need to expend 3 times more energy than in a tree. Kevlar vests work on this principle. That is, a Kevlar vest is a chaotic interweaving of threads and a bullet gets stuck in them much better than in titanium and other alloys. Therefore, mice are not a problem if done correctly. No need to make any nets from mice. We used to do this, but then we saw that it was not necessary at all. Requirements for straw: straw must be closed on all sides. Preferably non-combustible screed material. If this is done, then mice are not a problem. Screed in the form of clay, cement-lime or some kind of plaster.
E.I. Shirokov
Fire resistance of straw houses
The second most popular question among people after rodents is fire safety in a straw house. Does straw burn?
K.N.
Does straw burn? By itself, of course, it burns. Does the paper burn? Yes, it's on fire. But if you try to burn a thick book, it will already burn very badly. If you plaster this book, it won't burn at all. If you cover straw with combustible material, then the fire resistance class is the same as that of wooden log cabins. If the straw is covered with fireproof plaster 1.5-2 cm, then this is the limiting class of fire resistance. Tests were carried out in the USA, England, Germany. Limiting fire resistance class F-119, S-135. What is F-119? This means that a plastered thatched wall can withstand exposure to plasma with a temperature of at least 800 ° C, while not transmitting fire through the wall and does not lose its bearing capacity. Plastered thatched houses have an extreme fire resistance class. Another question is that if there are wooden floors, then houses can burn on wooden floors. Therefore, special attention should be paid to the fire protection of wooden floors. This spring we had an international meeting on straw construction, and we adopted such a norm for ourselves that if we lay straw in ceilings as a heater at the top, then it is desirable to make a layer of self-compacting non-combustible material, for example, fine sand, expanded clay, oak leaves with clay, as our ancestors did, or something like that. Physical meaning: if drying occurs there and cracks appear, then, for example, sand automatically fills all the cracks and the fire loses the ability to be fueled by oxygen. Therefore, in terms of fire resistance, thatched houses are much safer than log cabins.
E.I. Shirokov
Economic benefit from the operation of a straw house
It is clear that if you build a house from straw, according to technology, then this is not the cheapest construction. Can people, choosing a thatched house, derive some economic benefit from it for themselves?
K.N.
If you are building a thatched house and you have enough funds, it will not look marginal, we will soon go near Krasnodar, see a very expensive thatched house, three-level, 500 m2, built 5 years ago, and ask a person why he built himself a house from straw . A thatched house, when built correctly and with eco-friendly finishes, costs the same as houses made from other materials, but you can save a lot on maintenance. Heating costs in a straw house are 4 to 7 times less than in an ordinary brick house or any other house. This investment is very good and correct. Why? Because GAZPROM has taken a course on the principle of equal profitability. What it is? Revenues from the sale of gas within the country must be equal to the income from the sale of gas abroad. That is, the price inside the country will be pulled to the level of the European one, and they are already pulling it. And here, unlike in Europe, the duration of the heating season is 3 times longer. Our climate is objectively 3 times colder than in Europe, so our heating costs are much higher. Thus, it turns out that it is necessary to invest in good thermal insulation. Why? Because in the future it will allow you to live comfortably, and even better to make a house that has no utility bills at all. That is, a house completely untied from the central networks. In this case, a crisis is not a crisis, there is nothing to take you for, you have nothing but a land tax. Otherwise, you live and do not pay for anything. There are a lot of such projects, there are in the Krasnodar Territory, there are also near Moscow, there are also in Siberia. It is now possible to make a completely autonomous house that fully complies with the energy-passive standard easily and simply.
E.I. Shirokov
Energy efficiency of straw houses in numbers
What does the energy efficiency of a straw house look like in numbers?
K.N.
The thermal conductivity of the straw panel according to German studies is lambda 0.047 - 0.053 W / m3, the pressing density is from 80 to 160 kg / m3. Straw panel is 7 times warmer than brick, 4 times warmer than wood. Here we have 45 centimeters wide, if we take a tree, then this is almost 3 meters. Heat loss through such a wall is less than 2%. In fact, such a house is a thermos. If we take the international coefficient, if we take a wall of 45 cm, then it has a coefficient of 001 according to the German classification, if we take our system, then 10. SRO now recommends 4, we do 10.
E.I. Shirokov
Breathable walls in a straw house
How does moisture circulate in straw houses? The walls of thatched houses are breathable, what does this mean, please tell us.
K.N.
A very interesting phenomenon is that even if you do not heat a straw house for 10 years, mold never appears in it. This is in contrast to brick, concrete, gas silicate and other houses. What is the reason? Because the wall is breathable, humidity is automatically regulated: a straw house is never too dry or too wet. For what? If you use natural clay plaster or clay-lime, or cement-lime (but cement should not be more than 10%), then in this case your wall is breathable, and it automatically regulates the humidity inside the house. Accordingly, the humidity is regulated and never reaches critical parameters. There is Darcy's equation: the higher the temperature, the higher the partial pressure of vapor, water. If you are warm inside, you have a high partial vapor pressure and the wall breathes easily. If an interesting phenomenon, we did a laser check, even at -40 ° C moisture enters, although it would seem that it should freeze at the dew point, but it does not freeze, it exits and evaporates from the outer surface. Due to what? Due to the fact that when moisture goes through the straw, the water does not form a short-range order. It turns out that the molecule with one end of the water is always on the surface, in this case, a straw tube or straw pores. When water does not form a short-range order, it, firstly, cannot freeze, that is, it retains mobility at -40 - -60 ° C, and since no one has canceled the Darcy equation, if the concentration outside is less than inside, then the steam comes out, from warm to cold. Therefore, if you are doing not with plaster, but with a vapor barrier, the film should always be inscribed on the outside. It often happens that they are laid in the floor in the same way as on the roof, this is a mistake. It is necessary to do so that the moisture comes out from the heat. If you do this, then such a house is maintained in an optimal humidity regime in a natural way, which is very valuable. When is the best solution to a technical problem? When a function is executed but the device is not. If such a solution can be found, then this is considered the best solution. Therefore, straw is the best solution for building envelopes for housing, offices, industrial premises, and so on.
E.I. Shirokov
Durability of straw houses
What can you say about the durability of thatched houses? Where did this technology come from, what examples exist, why can straw stand for a long time?
K.N.
There are thatched houses that have been standing since the last century. I did not come up with this technology, it was invented by the first American settlers who came to the Great Plains. There was nothing but grass. By that time, the first horse-drawn balers had already appeared, they made straw blocks, as in “Well, you wait!”, If you remember, and since there was nothing else, people began to make houses, schools, churches out of this. Many of these buildings have survived and are still functioning: housing, churches, and schools. They were built in 1896, 1901, 1904, I was there in those places. Many of them are even built of hay, not straw. Why do they feel good? Because breathable plaster works like a reverse osmosis pump: all excess moisture will be thrown out. The question usually asked is: “What about the dew point?”. So, if water goes through the straw, it cannot form a short-range order, because it is absorbed into the straw, and there is no short-range order, that is, it cannot freeze, relatively speaking. How to make sure that the breathable plaster works like a reverse osmosis pump? If you have any pre-revolutionary or pre-war barracks, come up when they are being demolished and see what happened to the wood there. As a rule, the floors and logs have already rotted away, and when they break the wall, then under the lime plaster, the tree is as if it had been put up yesterday: it is sonorous, in excellent condition. Why? Because lime plaster, just like clay or clay-lime plaster, is a reverse osmosis pump. It draws all excess moisture out of the wood, even if you are making from wet wood. You can put even dry, even wet wood in the panel, because the plaster will dry it out. The tree can only sit across the fiber, not along. That's why it doesn't rot. Regarding durability, I want to say again that there are houses that stand for more than a hundred years. If everything is done correctly, there is no problem for the house to stand for more than 100 years. There is another advantage that few people talk about: these houses have an optimal capitalization. For example, what is the problem of demolition of five-story buildings that are obsolete now in Moscow? These five-story buildings can be demolished and higher-rise buildings can be built in their place, but this is not possible for economic reasons, because the solidity of reinforced concrete is very large. To dismantle it - iron separately, crushed stone separately - the costs will be $ 300 per m3. It is impossible to simply take it out and throw it into a landfill, as is usually done, because there are no more free sites for landfills near Moscow. Driving long distances is also expensive. Moreover, from a five-story building, the landfill spot will be five times larger than the building spot. Therefore, a program for the demolition of dilapidated housing began to be done, but they ran into such problems. It passed as a pilot project, but as a system it does not work.
E.I. Shirokov
Durability of thatched houses
Everyone knows the tale of the three little pigs, in which the wolf easily blows away the straw house. What can you say about the durability of thatched houses?
K.N.
A straw-panel house or a straw-filled frame house is a frame house in which straw, a natural material, is used as insulation. You need to understand that the insulation is actually not polystyrene, not stone wool, but air. With the help of straw or, for example, stone wool, we simply stop the movement of air. In my opinion, it is much better to stop the movement of air with the help of natural, natural natural materials without any chemistry and harmfulness. As for strength: using a fortieth or fiftieth board in the frame allows you to build three-story houses without any problems. Houses withstand any hurricanes, earthquakes and so on. In terms of earthquakes, such a house is much safer than panel, brick and any other, because it is difficult to kill a person with a straw panel. This design is very easy to pass shock waves, it does not collapse, because the tree is easily bent, and the shock waves pass. Since the house is light, the foundation is very light. In Sochi, we build houses on any slope, 45-60o - please. We easily build a house, asbestos-cement pipes are made, reinforced, poured with concrete, and this is designed for a 10-magnitude earthquake. Everything else that is being built in Sochi is 8 points. What is the danger? If there are 9 points, then with a guarantee no one will leave the panel house, because the reinforcing belts, which should protect from destruction, will burst and the effect of a compressed spring will occur. There is no danger in a house made of straw panels, because the shock wave passes easily, the foundations are light, stable. I carried out construction in Denmark, Germany, what is the difference in mentality in Russia and in Europe? In Germany, for example, a person is ready to pay a double price if he understands that the house will be environmentally friendly, will not destroy his health, will not destroy the health of his children. This is not the case in Russia. In 2000, 30 people from Germany studied with me, and in fact everyone created their own company and everyone builds such houses. But there this direction is supported by the state, and people are ready to pay for the environment. In our country, no one is ready to pay for the environment, even more than that, I will tell you: in Russia there are no maximum permissible concentrations of harmfulness for housing. This is a paradox. You can make a house out of what you can’t live in, and very often this happens. Recent scandals in Moscow, when new nine-story buildings were dismantled there, because for seven years there was not a single normal pregnancy, and all building materials were approved and had hygienic certificates. How can this be? The state allows it on the market, but you can't live in it. Either something in the state is not right, or the goals are different, or some other reasons. What is the principle: if you use natural natural materials, then you do not need to know any MPCs. As soon as you go into chemistry, supposedly harmless, which does not exist, problems immediately begin: allergies and everything else. Therefore, this direction is the future.
E.I. Shirokov
Bridges of cold between straw panels
Is heat lost in a house built of straw due to interpanel joints?
K.N.
What are the constructive options for the execution of panel walls, so that there are no cold bridges, there is no infiltration through the cracks, and so on. There are several approaches. The first approach is plaster. Plastering is done like this: a mesh is stretched, and plastered on top. In this case, the gap is under the plaster and has no effect on infiltration. If you are making a finishing material, for example, heat-treated pine, you definitely need windproofing. It is no longer a mesh, but a wind insulation, necessarily breathable, after which - a finishing material. If you do not have either, you want to leave the straw so that it has the most effective effect on your biofield. There are also such options: you need to lay a jute or linen gasket, which is used when laying log cabins, and screw it together. It turns out that the gap is filled with jute. Here are the solutions.
E.I. Shirokov
Biopositivity of thatched houses
Many people do not understand the term "biopositive material". Could you please tell us what are the biopositive properties of straw?
K.N.
What is the physics of the biopositivity of such a pressed straw wall? When I was in Siberia, the hunters told me a trick that is used when the hands freeze so that it is impossible to hold a matchbox, and there is a real danger to life - you cannot light a fire. What should be done in this case? In this case, a tinder fungus is located, gloves are removed and the hand is brought under the tinder fungus at -40 ° C. After a minute and a half, the hand begins to move. Why? Because at the bottom of the tinder fungus is a very porous structure of tubes in which spores are located. These porous structures create a certain field that affects the qi and activates the movement of qi in the channels. If qi began to move actively, lymph will move behind it, blood will follow the lymph, and the hands will become mobile. In a straw house, the entire wall is such a tinder fungus. Or let's say the bed will give the same effect: you lie down and you have an intensification of the qi movement. Qi is the energy that falls on us from outer space, we are familiar with it mainly from the Chinese qigong gymnastics, which is aimed at activating the movement of qi in our body. “Qi” is cosmic energy, “gong” is movement. A straw wall, especially when the house is round, is the factor that strengthens your biofield by intensifying the movement of qi. This is basically a mechanism that allows you to get therapeutic effects, health effects, up to the treatment of psychosomatic and mental illnesses. The Germans, who studied with me in 2000, created a department of mental problems at the Munich Institute of Parapsychology, in which deep depressions are treated by laying a person on straw, making a straw hemisphere, putting on headphones and fixing alpha, deta, beta, gamma rhythm of the brain. First, he hears the bells, and then there is harmonious music and they watch until all his biorhythms return to normal, like a healthy person. It takes from 1.5 to 5 hours. After that, he puts 1500€ in a box and receives a guarantee for six months that he will not get depressed. Such treatment is quite effective and has already been tested in Europe. Although our grandmothers used it. Ask your grandmother which mattress was considered healing, maybe she won’t explain “why?”, But which one she will tell you for sure - straw. It was possible to sleep on a downy feather bed, but in general they slept on straw, because the biofield on straw is restored very effectively.
E.I. Shirokov
The idea of eco-houses made of straw, the concept of a healthy lifestyle
A real eco-house is not just a house made of straw, it is a connected house-site system. You can, literally in a nutshell, reveal the concept of a healthy lifestyle. What is the idea of building eco-houses?
K.N.
How are we different from other construction companies? We are trying to solve the issue in a comprehensive manner, that is, not just building a house, but creating a “house-land” ecosystem. The most important thing is the local permaculture sewerage, which would convey the energy information of your health status to your plants. The Creator so arranged that the lower ones serve the higher ones. If plants receive energy information about the state of a higher being, and we are higher beings in relation to plants, then they must produce substances that are medicines. It was written in Ayurveda 9 thousand years ago. How to do it cheaply, simply and effectively? If we are ordered a house and ordered such a system, then we immediately design it. If you want, we will do it ourselves, if you don't want, hire Tajiks, and in 3-4 days they will make such a system according to our drawings. It turns out that you pulled the toilet handle and you started underground watering the site. Your waste goes through aerobic, anaerobic, again aerobic treatment, and then the water, actually already purified and structured, filled with nutrients, enters your plants, and the yield increases significantly, and the fruits are medicine for you. Plus, I have already talked about the house as a place of application of labor. It is important to build not just a house, but it is important to build a house and something that provides for the family. You fit into the social division of labor by growing fruits, vegetables, mushrooms, in a word, whatever you like. It is important to understand the boundary conditions, you need to understand that the Krasnodar Territory, Southern Siberia, the Central part are now heavily sprinkled with chemicals from civilian aircraft of American and Turkish airlines, NATO aircraft have a base in Ulyanovsk, they are also sprinkled with powder. So when you make systems that provide you with food, it is very important to protect them from what falls from above. We give recommendations on how to do it, develop drawings, how, for example, to make a greenhouse around the house, which would cover your needs, and at the same time keep the soil clean. Because their task is now they have made a line of plants resistant to aluminum salts and pour this aluminum mercilessly so that natural plants simply do not grow. Who cares, go to the Internet, Galina Tsareva's film "Haarp - climate weapon" the second part, or just "chemtrail", there will be a lot of information. All this also needs to be understood, and we take this into account when we make such systems.
E.I. Shirokov
Straw eco-building and ecology
It is clear that straw has a very beneficial effect on human health. And what can be said about the impact of straw construction on nature, on the environment?
K.N.
Ecology impact on nature. In Russia, about 100 million tons of straw are burned annually. Because there is no adequate straw utilization technology. Sometimes combines are equipped with drum choppers that grind straw into dust, but in this case, fuel consumption increases by 30-40%, and farmers already live in a “compressed” state, and they are not interested in increasing the consumption of diesel fuel by almost one and a half times, for to crush the straw. It turns out that the straw remains in the field and then is burned, there is practically no bedding for livestock now, everything is on the hydrowash of manure. When straw burns in the fields, it is clear that nothing good happens: smoke, the destruction of entire ecosystems of insects, small animals, and so on. This is on the one hand. On the other hand, rice straw in the Krasnodar Territory is a big problem, because it does not go anywhere, even for livestock bedding, and it is not clear what to do with it. In general, the technology of building straw houses will allow solving the housing problem in the country in 2 years. But there is no interest, because there are existing financial flows, formed, and changing them is fraught with consequences. Everything is already divided, so to speak, so there are always people who don't like it very much. Now the third factor. We have already said that when a reinforced concrete five-story building "dies", it is not clear what to do with construction waste. In Germany, this is also a very big problem, because every year 10 million tons of construction waste appear there. You can't bury it in the ground, because, as a rule, it is bent reinforcement, concrete, it is very expensive to process it so that the crushed stone is separate, and the iron is separate. When the straw has served its time, he threw it into the field, and a natural cycle will begin. Also clay plaster. Everything here is completely renewable, ecological, without any chemistry. What is the bottom line? Production solves environmental problems, recycling does not create environmental problems, in the process of operation, a person improves health. Why not use this technology?
In what at the moment can there be difficulties in the construction of a straw house?
K.N.
There are not so many specialists in the construction of houses from straw panels now. Although people receive information via the Internet, they themselves begin to assemble machine tools, make panels. This is not bad, but a house is such a thing that it is better to learn from the mistakes of others from professionals, or to attract specialists to build such houses. Razekodom is the first company in Russia that builds three-story houses from straw panels, built in Siberia, the Volga region, and near Moscow, in the Krasnodar Territory. There were also round houses, one- and two-story, also made of straw panels. The results are good. Everything that I said about the timing and technology has been verified by practice, this is not a fantasy, but the reality of our days. Therefore, contact the experts.
E.I. Shirokov
Steps and timing of building thatched houses
If a person has already decided to build a straw house for himself, how should he proceed? What is the time frame for construction?
K.N.
What is the scheme of work? If you have a plot, then before building a house, you need to find out what you have with the energy patterns on the plot: how the sun goes, where you have aboveground, underground water. In straw panels, the compression force is 4-5 tons, there can be no ventilation even theoretically. Everything costs very quickly. There is another factor: with the same estimate, if you build quickly, your costs are significantly less than if you stretch this pleasure for 3-4 months. So, the foundation is about a week, the house is assembled in 3-4 days without a roof, the roof is made for a week, and after that you can start finishing. Ecological quality of houses is checked, certified. We build everywhere: in the Krasnodar Territory, in the Urals, in Omsk, in Moscow, in St. Petersburg, the Volga region. In a word, all over Russia. I was often approached with requests to build a village for 100-150 houses per season. Last year, I had to give up. Because I worked with straw blocks, and with the number of specialists with which I could guarantee quality, a maximum of 10-15 houses per season could be counted on. Couldn't do more. Now, with more modern technology of building straw panels, you can build 100 or 200 houses. This is already a fairly high quality and fairly fast construction. From straw panels you can make round houses, rectangular, oval, whatever.
E.I. Shirokov
Press conference E.I. Shirokov about straw eco-construction entirely
Terminology
The most valuable thing in a person's life is his health. Everyone understands that it is impossible without a healthy lifestyle. Human health is influenced by many environmental factors. What we eat, what we ride, where we live - all this is of decisive importance.
A healthy lifestyle is not possible in an environment filled with harmful substances. Consequently, in the pursuit of health, we come to the need to use environmentally friendly building materials. Unfortunately, many of those who prioritize a healthy lifestyle do not see the difference between environmentally friendly and sustainable materials.
Environmentally friendly materials are materials that do not have a detrimental effect on the environment. But only those materials that do not cause any harm to the environment can be called absolutely environmentally friendly.
About the need to use straw
The use of environmentally friendly materials is not enough to save the environment. The fact is that when creating such materials, technologies that harm nature are often used. For example, when using different devices and units, the need for electricity increases, the production of which may be associated with "dirty" processes. In addition, the amount of resources needed to maintain production is increasing. This includes the creation and use of lubricants, spare parts, as well as waste from related production processes.
Brick, mineral wool, natural stone and other environmentally friendly building materials require a lot of energy and resources to manufacture. The use of wood, as one of the most environmentally friendly materials, leads to a rapid reduction in forests on the planet. Therefore, the use of wood cannot be called an environmentally friendly approach to construction.
Combination of convenience and environmental friendliness
The logical conclusion is to reduce the amount of wood in the construction of buildings to the minimum possible. This issue has already been partially resolved - "frame" construction is gaining more and more popularity. The share of wood used in this technology is only about 15% of the total wall material.
(Compare with a house made of timber, in which wood occupies 100% of the material. To build one house with an area of 150 square meters, you need to cut down a quarter of a hectare of forest. For reference: it takes 30-50 years to grow a tree suitable for sawing six-meter-long boards).
The walls of buildings with frame technology consist of wooden "ribs", the space between which is filled with some kind of insulation. Most often it is mineral wool or expanded polystyrene, better known as polystyrene. And he and the other insulation can not be called environmentally friendly. During operation, they can emit harmful substances into the atmosphere. In addition, the installation of mineral wool insulation is associated with the risk of damage to the skin and mucous membranes of a person.
Perhaps the only insulating material that has the right to be called environmentally friendly can be called ordinary straw. It is an annually renewable resource. Moreover, it appears as a by-product in the cultivation of cereals.
Therefore, there is no need to create a separate production for straw. After all, straw remains on the field after harvesting - wheat, rye and the like. It just needs to be assembled.
In the production of wall panels, it is best to use rye straw. It is not suitable for the household - due to its rigidity, it is not even suitable for laying the floor in animal rooms. Often it is simply left to rot in the fields. In addition to this, straw has excellent sound and heat insulation qualities. It is three times more effective than pine wood and 10 times more effective than brick.
Therefore, rye straw, as a raw material for construction, has three key advantages: annual renewability (remains in the fields), no energy-intensive production (costs only for straw collection) and fiber structure (thermal insulation). Thanks to these advantages, straw insulation is out of competition in terms of environmental friendliness compared to other materials.
History reference
People have been using straw to build houses for thousands of years. The first mention of thatched houses (in surviving sources) came to us from ancient Egypt (about 5000 BC). Since then, straw building technology has come a long way from adobe houses to multi-storey buildings with straw insulation.
Initially, these were walls made of straw, covered with clay for strength and weather resistance. Then came houses made of bricks made from a mixture of straw, clay, sand, earth and water. Later, straw pressing was invented, which made it possible to erect the walls of one-story buildings from straw briquettes, and then cover them with plaster. To date, the development of technology has reached the creation of wall panels with straw inside, ready to be installed and formed walls.
Today, straw technology is used in many areas of Eurasia (from the Kuban to Great Britain), North America (USA, Canada) and others.
Not afraid of water or teeth
Straw, which is used as insulation, is not subject to decay. First, the rye that has not yet been harvested is washed by rain and then dried by the wind. Secondly, it is collected only in dry sunny weather. Thirdly, after pressing into the wall panel, the straw is plastered on both sides with a layer of moisture-proof material: clay or gypsum. This plaster protects from moisture, but at the same time perfectly passes steam. Thanks to this, straw insulation is very durable.
In addition, rodents do not start in rye straw. There are also several reasons for this. The first is that the straw goes to the production of panels after harvesting. These are simply dry stems remaining after threshing, they are freed from leaves, inflorescences and seeds. There is nothing for rodents to eat in this straw. The second is that straw contains a substance called lignin, which rodents really do not like. Third, rye straw is so hard and prickly that it cuts the skin. Therefore, straw is not suitable for housing either - it is uncomfortable to sleep on it.
In addition to this, straw contains 2-3 times more silica than wood. This makes it more durable and resistant to fungal attack.
Brief description of technology
Straw is collected from the field using an automatic baler. He leaves behind bales, which workers manually reload into the back of a tractor. After that, the straw is delivered to the edge of the field, where it is transferred to a truck that carries the straw to the production of panels.
In the workshop at this time, the frame for the panels is being assembled. Using pre-prepared boards (dried and sanded), frames of future panels are formed. Then the straw is pressed into the assembled frames to a density of 140 kg/m3. With this degree of pressing, the straw becomes an absolutely non-combustible material.
When creating one standard wall panel with a width of 1.25 m, a height of 2.5 m and a thickness of 0.42 m, 15 rectangular bales measuring 30 * 50 * 80 cm are required. Taking into account the weight of the dried wood, the finished panel weighs 230 kg. The plastered panel weighs almost 600 kg.
The last step in creating a wall panel is to cover the front sides of the panel with plaster mortar. At the same stage, cable and ventilation ducts are laid in the plane of the wall. As a result, a finished panel comes out of the production line, suitable for mounting walls or ceilings at the construction site.
Such panels allow you to build houses up to 3 floors high. If, when assembling the panel, metal is added to the tree, the number of storeys of the building with straw insulation can be increased up to 5 floors. Such houses can often be found, for example, in Germany.
A building assembled from such wall panels can withstand an earthquake of magnitude 10.
Assembly of the finished house
Wall panels, assembled using the latest achievements in the field of straw construction, have such important qualities as durability and reliability. They are self-supporting. In addition, the technology allows you to set up production for the production of panels of various formats.
Thanks to the proven technology, the finished panels are easy to install, and also have a primary finish. To the side of the panel facing the inside of the house, you can immediately attach decorative elements and light furniture.
The technology allows you to assemble the house at any time of the year, observing the only condition - dry weather.
Not afraid of water and fire
The plaster that covers the straw consists only of natural materials. Its main components: gypsum or clay, which have the same properties. Other components of the plaster serve to stiffen it - salt, lime, or are added as heat-insulating fillers: chopped straw, sawdust, sand, vermiculite, expanded clay.
In addition, clay additionally preserves the entire structure. They say that thanks to this very property, a few decades after the construction, when dismantling such a house, a tree completely unspoiled by time is found in the thickness of the wall.
But clay has another unique property: it maintains ideal humidity in the room, absorbing excess moisture or giving it back if necessary.
The fire safety class of the wall panel is K0(30). This means that the plastered panel will withstand exposure to open fire for 30 minutes. Only after that, the straw insulation inside the panel will heat up and begin to smolder. Without further heating, the smoldering of the straw will stop.
Humidity inside a panel house with straw insulation is maintained in the range from 40 to 60%. This indicator is comfortable for a person in the warm season. Therefore, the humidity inside such a house will be comfortable all year round.
Today is easier
For a long time, building with straw was very labor intensive. Collecting straw, laying in walls, covering with clay - all this required a lot of time and effort from the builder. The formation of straw briquettes with a baler directly on the field did not save the builder from manually stacking briquettes to form walls, as well as from plastering. Now, using presses in the workshop, the process of assembling panels has been greatly simplified and accelerated.
Straw house building is the most environmentally friendly.
A house built using straw has many positive aspects. Straw insulation does not require large energy costs to create. Straw does not create inconvenience during installation, like mineral wool insulation. It does not emit harmful substances and does not serve as a pollutant remaining after construction.
In addition, straw has excellent sound and heat insulation. It is the best basis for creating a passive, self-contained home. It allows you to significantly, up to 50%, reduce energy consumption to maintain the temperature. According to statistics, 27% of the energy generated in the world is spent on space heating during the cold season and cooling during the warm season.
Considering all the listed features of straw insulation, we can conclude that this is an absolutely biopositive material. Its extraction, production, use and disposal do not cause any harm to the environment.
To keep up with the times
A house in which rye straw is used for insulation is not only environmentally friendly. Such a house will be the most energy efficient and environmentally friendly of all possible. By building such houses, we protect nature from pollution. Thanks to the development of technology, today's straw-insulated house has nothing to do with the hut that crumbled from the breath of a wolf in a well-known fairy tale.
Life goes on, technology develops, straw grows, houses with straw insulation stand and delight their owners. Understanding the value of the environment, you need to arm yourself with the fruits of technology development and keep up with the times.