Autonomous ecological housing, fully equipped with effective support systems, is able to “support” itself. And without harming the environment. But to build it and equip it with smart technology is quite realistic.
We will tell you how to build an eco-house with your own hands, using exclusively natural building materials - clay, sand, straw, wood. For you, we have collected, studied and presented information on the most promising options. Described in detail the technology for the construction of environmentally priority housing.
For beginners, the recommendations presented by us will provide effective assistance. To facilitate the perception of a difficult topic, photo collections, informative schemes, and video instructions are attached to the text.
Construction of an eco-house: a dream or reality
Interest in the construction of eco-houses is growing every day - projects that previously seemed fantastic are realized and show amazing results. Some principles of green housing are well known to anyone who has lived or vacationed in a village.
And to this day, outside the city, houses are being built from logs, timber, bricks - that is, natural materials that do not contain harmful artificial impurities.
The scheme of a two-story residential building using the “double beam” technology - walls, internal ceilings, ceilings are made of two layers of wood (profiled dry pine timber)
Advanced villagers and summer residents have long installed septic tanks and biological stations - compact modern waste processing systems. Household plums decompose naturally, then the solid sediment is used as fertilizer, and the liquid is cleaned (up to 98%) and put into secondary use - for watering the garden or garden, care for the territory.
Diagram of a biological water treatment system with two chambers (aerobic and anaerobic exposure) and a filtration field. After cleansing, the fluid enters the soil
Of course, everything is different with the heating system: as before, the main source of heat is either an electric (gas, gas, coal) boiler, or a stove, which is heated in the old fashioned wood. In environmentally friendly systems, the use of natural fuels (gas, coal, firewood, petroleum products) is excluded.
The use of solar panels leads to the economical consumption of electricity, because the power of the alternative system is not enough to ensure the operation of energy-intensive devices
The following are recognized as optimal sources of energy and heat:
- hydrodynamic heat generator with a cavitator;
- solar powered system;
- home wind generators;
- biogas plants (for farms).
The functioning of smart heating, energy saving and waste management systems is combined, and the result is a full autonomous maintenance of the house without any pollution of the atmosphere or soil.
An eco-house with an area of 48 m², designed by Romanian specialists, is built of glued beams and double-glazed windows, the roof is covered with wooden tiles. Cost - 25 thousand euros
It turns out that if you wish, you can independently build a completely “clean” house, especially since there are plenty of examples - hundreds of ecological housing projects are being developed in the countries of Scandinavia, Austria, Germany, Denmark, the UK, and not only by nature lovers and representatives of “green” ones, but and government agencies.
The principles of green homes
If you nevertheless took a chance and decided to build an eco house with your own hands, you need to start with a project - a detailed planning of all the stages of building construction and connecting life support systems.
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Principle 1: The main features of the eco-house include a vast territory intended for arrangement and accommodation. For one person should be at least 30 square meters. m, near the house there is enough space for landscaping
Principle 2: The interior of the living space should be made of environmentally friendly materials of natural origin
Principle 3: The height of the ceilings in the premises intended for housing is not less than 2.8 m, the height of the equipped attic space is not less than 2.6 m
Principle 4: The total energy consumption should not exceed 5 kW / h. To reduce electricity consumption, the use of a heat pump, solar panels, a wind generator, etc.
Principle 5: The priority is the use of used and natural building materials used in construction and exterior decoration. It is desirable that they prevail whenever possible
Principle 6: The canons of eco, country, boho and traditional folk styles are observed in landscape and interior design
Principle 7: It is recommended that the project provide for the arrangement of a winter garden, extensive terraces, corners with green spaces
Principle 8: The layout should be reserved for a sauna, a Russian bath, a large hot tub or pool
Extensive territory for living and landscaping
Eco-friendly interior decoration
Ceiling height in living quarters and attic
Use of green energy sources
The naturalness of building materials and exterior decoration
The sustainability of eco-style in the design
Winter back in an eco-friendly project
The layout of the pool, sauna or jacuzzi
The first stage is the choice of the construction site. The most favorable site is a flat area with a close source of water, open to sunlight and wind. If the region often blows northern winds, if possible, the northern part of the house should be protected (for example, by planting tall conifers).
An interesting design decision is the partial construction of a house "in the ground." Part of the building is protected and insulated in a natural way, the only minus is the mandatory artificial lighting of the underground part
The second stage is the determination of the nuances of building an eco-house. An important role is played by the insulation of the house - the more efficiently the natural protection system is arranged, the less energy will be used for heating.
To increase the insulating properties, several techniques are used, for example:
- increased thermal protection in areas with “cold bridges”;
- the device of the multilayer structure of the walls (up to 4 layers with gaps filled with mineral insulation, waste from the pulp or cotton industry);
- additional insulation of the basement and basement.
An interesting architectural solution for the northern regions is the division of space into "winter" and "summer". As you know, our ancestors also had a winter hut (with a Russian stove) and a summer one, not heated.
A lot of energy is spent on maintaining the operation of light bulbs, so you should maximize the natural light. To do this, one wall of the main room can be made glass using triple glazed windows with wooden frames and shockproof glass.
Variant of a house with circular glazing. During daylight hours, almost all the rooms of the building are naturally lit - through the glass walls erected around the perimeter
The tightness of the house will be extreme, so it is worth thinking about ventilation. The more useful qualities will be laid during construction, the less energy will be required to provide the living area with heat, light, clean water.
The device of "green" roofs creates an additional effect of warming the building and delays rainwater. In order for the grass to grow on the roof, the technology of equipment for inverse exploited roofs has been developed
Layout secrets: drawings and diagrams
Visualization of the project simplifies its implementation, and sketches, drawings, diagrams indicating the exact location, specific parameters and materials help to "start" the process of completing the task.
We remember that building a house (including with the prefix eco) cannot be started without permits from state institutions that give the go-ahead only after a thorough study of the project. We recommend that you prepare “serious” documentation with design engineers in order to avoid prolonged red tape.
One of the options for the general scheme of building a green house with the elements of the water supply system, heat insulation, ventilation, lighting and decoration (+)
What needs to be displayed on the schemes for the construction of eco-houses? Everything that causes even the slightest difficulty - for example, the location of the ventilation system.
A possible ventilation scheme with a recuperator - a device that is a heat exchanger that uses the heat of the exhaust gases to partially heat the heating system (+)
Saving the energy generated by solar panels also implies the equipment of a complex set of various systems, including hot water.
The diagram shows a system with a double source of electrical energy: solar panels located on the roof slope, and a boiler installed in the lower part of the house (basement, basement). This decision will be considered environmental if biofuel is used for the boiler (+)
And here is another option for installing a solar system with a water collector. The disadvantage of such systems is that heated water can only be used as a coolant or sanitary water. In addition, only immediately after heating.
Those wishing to accumulate solar energy and use it to charge household appliances is better to build a solar system from solar panels.
The solar collector is mounted on the roof of a separate building, specially built to house the water heating system. Hot and cold water enters the house through an underground pipeline
It is not rational to install wind generators in regions with forest plantations or other protection from the wind, however, on the shores of seas, reservoirs, in the steppes and mountains, they justify the installation costs.
The work of the solar collector and wind generator can be combined using a hybrid controller that distributes the energy received at the points of consumption or sends it to storage devices (+)
Before the construction of a country or village house of timber or logs, it is necessary to consider the arrangement of a heat-insulating layer.
Depending on the location, different heaters are used: mineral wool, solid and loose heat-insulating materials on a natural basis, mats made of wool or cotton
Here is a house invented by scientists from Wales. It spends less energy than it produces. The miniature "electric factory" is a standard project, that is, anyone can buy a house. It is claimed that its cost is almost the same as that of an ordinary house.
Powerful solar panels installed on the roof and parts of the wall, economical household appliances, “smart” distribution automation - factors that provide excessive amounts of electricity (+)
Ready-made schemes can be found on the websites of companies involved in the construction of eco-houses and buildings with passive energy saving.
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Autonomous water supply from a well / well
Solar panels as a supplement to heating
The presence of a heat accumulator in the economy of the eco-house
Automatic irrigation to care for the territory
Electric or gas generator
Install a smart access control system
Intelligent climate control system
Smart lighting control system
And now we will dwell in more detail on two projects - the construction of eco-houses from straw and firewood with the addition of clay, which plays the role of a binder.
Construction of an eco-house from straw and clay
Straw, which has excellent heat-saving qualities, has long been used in peasant houses - it covered roofs, stuffed mattresses, and insulated grooves between logs. In the southern areas you can find huts completely consisting of straw bales.
Knowing the properties of the material and the features of the technology for assembling the frame, you can build a "thatched house" on your own.
Samanny houses can have different number of storeys, wall or roof configuration, size. Because of clay plaster, it is sometimes difficult to guess that the “building” brick is the main building material.
Pros and Cons of Straw Blocks
The first thing worth noting is the availability of basic building material. It is obtained as a result of growing and processing crops (legumes, grains, hemp, flax, etc.).
Grains, inflorescences, seeds go for further processing, and the stems with the remains of the leaves are dried and sent to livestock feed. Also, straw is suitable for making rustic decor.
The relative lightness and compact size of the material is at hand for economical owners who plan to do it on their own without the involvement of a work team and the rental of heavy construction equipment
With the growing demand for environmentally friendly raw materials, a whole industry has emerged for the production of adobe brick (building material from pressed straw and clay) and biofuels.
Saman and simply straw bales are actively used for the construction of private houses, since they have the following qualities:
- have a low degree of thermal conductivity;
- Do not ignite, but only smolder (we are talking about pressed plastered material);
- do not contain chemical inclusions;
- have a budget value.
Cons are considered hygroscopic and the associated predisposition to rapid decay. In addition, straw bales are an attractive place for rodents that also value environmental cleanliness.
To get rid of the shortcomings, increase the density of the building material to 300 kg / m³, reinforce the blocks and cover them with stucco with the addition of slaked lime.
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The construction of an eco-friendly house from straw panels
Workability and lightness of straw elements
Insulating advantages of building materials
Hygroscopicity of environmentally friendly panels
Rules for the preparation of material
To build a house faster, you can buy ready-made straw bales or adobe bricks. Both options are easy to prepare on your own, having prepared enough material in advance. The harvesting period falls at the end of summer or fall - harvest time.
Only during this period, dry stems are fully consistent in their characteristics. Until spring, straw rarely "lives" without changes, as it deteriorates due to dampness and is covered with mold.
Adobe bricks (adobe) are often prepared independently: a mixture of clay, plant fibers, manure and lime is placed in forms resembling boxes without a bottom, compacted and allowed to dry for 7-10 days, turning on different sides
To store the material, it is necessary to build a large shed with a strong insulated roof, a dry microclimate and good ventilation of a natural type. As a natural insulation, mats are used, made also from straw (preferably rye, since mice do not like it).
Foundation and frame construction
While the material "ripens", you can prepare the foundation.It is equipped in the usual way for a frame house. Masters recommend a lightweight tape option because the bales are lightweight.
A shallow foundation pit is dug out for the foundation, a formwork is formed from the boards along the perimeter and poured with a thick mixture of clay and sand. By the way, straw is sometimes added to the base of the house.
Until the clay is grasped, metal reinforcement is fixed in the corners and along the walls for future strapping. Then, when the foundation is strengthened, a frame is assembled from wooden bars (15 cm x 15 cm). First of all, angular racks are fixed, then - auxiliary supports for the walls. Horizontal elements are added to vertical elements - boards or bars of a smaller section.
If it is planned to install a basement, it is necessary to deepen the foundation at least 45 cm, and in the course of construction to waterproof the basement
Straw binding
The blocks are stacked alternately, in rows, according to the principle of brickwork. The seams between the rows caulk. Each block is fixed with a metal bar and strapping. After filling the entire frame, diagonaling is done diagonally with thin boards to give the walls more stability. The roof is installed at the very end, according to conventional technology.
Before using straw bales, check its quality once again: good material has a pleasant golden color and smell of dried grass, dry to the touch
The resulting seams and gaps are sealed with adobe mixture. If protection against rodents is needed, the walls around the perimeter are covered with a metal mesh with a small mesh. Sometimes, for insulation, lay out a second layer of thinner straw mats.
The outer part of the straw hut is plastered with a lime mixture (2.5-3 cm thick) and decorated with white or colored paint. As a color, ultramarine, umber, cobalt violet, iron minium and chromium oxide are used.
The last stage is the interior decoration, at the same time the equipment of the building and the adjacent area are produced with life support systems.
The technology of building a building of firewood and clay
Firewood, which is perceived by everyone as a traditional, but fading fuel, can be used differently - as a material for building walls.
For the technology of erecting buildings from logs in Russia, they came up with an interesting name - “clay shovel”, and in America, where this method of construction is also known, it is called Cordwood. If a house made of firewood is equipped with a smart energy-saving system, then it can be safely attributed to ecological, non-polluting environment.
The original "green" house, built using cordwood masonry technology. Naturalness is emphasized with the help of various structural elements: a lawn inversion roof, logs-supports, natural stone finishes
Advantages of the Clay Scoop Method
Ancient buildings with walls of wooden chocks fastened with clay mortar were found around the world. Some of them are several hundred years old, which means that the technology is paying off, at least in terms of strength and stability. Having wall thicknesses from 15 cm to 45 cm, the houses not only retained their shape, but still function.
Clay and pieces of wood are not only the main, but also the only materials for masonry. They complement each other perfectly, creating a pleasant, comfortable microclimate in the house.
People who happen to live in cordwood masonry type houses claim that they are warm enough in the winter and there is amazing coolness in the summer heat. The walls take away excess moisture and keep it in themselves.
The interior of a house made of firewood is also distinguished by the use of natural materials - undisclosed masonry of walls, solid wood worktops, wooden floors and window frames
Another advantage of natural material is its low cost.Residents of secluded communities, living away from cities and used to save on everything, willingly use wood for housing, including clay.
Features of building houses from chocks
The method of assembling clay "woodpile" resembles ordinary brickwork, with the difference that the logs can have a different diameter and shape. Their length is equal to the width of the wall, so it should be the same.
For central Russia, it is recommended to use logs with a length of 50-60 cm, for northern regions - up to 80 cm. The long length is explained by the fact that the longitudinal thermal conductivity of wood is 2 times higher than the transverse one.
The process of building a wall of logs of various shapes and cement mortar: at the edges - a rigid cement frame, inside it - a heater made of pressed sawdust
A clay solution is prepared as follows:
- take clay and sand, knead on water;
- crushed straw is added as a reinforcing element;
- adjusted to the desired consistency;
- spread on firewood, like a mortar.
For the fortress, instead of clay, cement is sometimes used, lime is added, and then the technology turns into "concrete". It is slightly different from the previous one. The cement mixture is laid out only at the edges of the logs, and the middle is filled with insulation - adobe solution or sawdust mixed with lime.
Collective construction of a round building using the technology of “clay pots”: each layer of firewood is leveled, chocks slightly protrude from the clay solution
As the finishing layer, plaster, also made from natural ingredients, is used. To soften the structure of the finishing solution, manure is added to the clay - a natural antiseptic.
Clay mortar sets at least one and a half months - throughout the entire period of the wall must be kept dry. To do this, a large canopy is erected over the building. Drying, the clay will crack, so you need to regularly cover the cracks and monitor the integrity of the structure.
Recommendations for beginner builders
If you decide to get a house of chocks, about a year before the start of construction, start preparing the wood. It must be dried for at least 10 months so that the structure does not deform further.
A small country house of 40 m² will require about 30 m³ of wood. It is better to take not round chocks, which during cracking can crack along the fibers, but chopped firewood freed from the bark. The length of the blanks is 50-60 cm.
The same length of logs is easy to achieve using a bench machine, but some easily cope with the task, placing the logs on ordinary goats. On the one hand, emphasis is made, on the other hand, at a certain distance, a mark is made on it and a cut is made.
When constructing voluminous two-story structures, it is mandatory to use a wooden frame of thick supports, beams and ceilings, since the load on the walls increases
The order of construction of the house:
- the device of the strip foundation;
- assembly of the frame (with a circular laying principle, it is not needed);
- step-by-step laying of “woodpile” with openings for windows and doors;
- pause for clay maturing (at least 2 months);
- roof construction;
- plaster and interior decoration.
When building walls, you can use traditional technologies. For example, a beam is used for corner strapping. In order for the wood to lie evenly, on one side a large shield is placed vertically - it plays the role of a limiter. To increase the stability of the structure horizontally after each 4 rows, it is recommended to lay barbed wire.
Thematic videos will help to understand the nuances of the construction of eco-houses.
Video # 1. Overview of green houses:
Video # 2. A film about the construction of an adobe house in the northern ecovillage:
Video # 3. Do-it-yourself clay peeling technology:
As you can see, building a house using one of the well-known eco-technologies on our own is quite realistic. You can start not with a residential building, but with a small utility room, a summer kitchen or a summer cottage decor. Try to apply the principles of building an energy-efficient home - this will be a small step into the future and a wonderful personal experience.
Want to talk about another original way of constructing and arranging an eco-house? Do you have any questions about our information? Please write comments in the block below.