Recently, there has been a trend towards a constant decrease in orders for log houses. In order to somehow preserve the segment, unscrupulous competitors have created myths and negative reviews about rounded logs to compromise this type of building material.
Our opinion is unchanged: any material has the right to exist, it is advisable to choose what corresponds to desires and capabilities. You should also take a responsible approach to choosing a development company, because the main characteristics of your future house made of rounded logs depend on them.
For you, we tried to dispel the following 5 myths:
See reviews of houses made of rounded logs
“Disadvantage” No. 1: Sapwood is a protective layer of wood
Adherents of hand-cutting say that the shortcomings and disadvantages of rounded logs are already visible in production, during which the sapwood, the most important protective layer, is removed.
In fact, sapwood is the younger layers of the tree; bast and bark are adjacent to them. Let's figure out what this “strongest and most important layer” is. If you believe Wikipedia, a resource that is the most important primary source of knowledge of our time, then Sapwood is lighter than inner part logs, and is characterized by less mechanical strength. It contains more water, since water is transported to the crown through it, and is less resistant to attacks by fungi and insects.
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The same opinion is shared by the authors of the Bolshoi Soviet Encyclopedia, which also says that sapwood is less dense, due to its role as a transport hub for water to the crown. In construction, it is believed that this part will deteriorate and wear out faster due to fungal rot or mechanical stress. Pine sapwood in summer period becomes blue-black or green, the same color penetrates to the beginning of the core. This phenomenon occurs due to the influence of staining fungi. These fungi do not spoil absolutely anything in the tree except its appearance, and they feed on substances that are present in the sapwood
How then is it possible for a less stable layer of wood to protect a more durable one?
Now let's go backwards. The most interesting thing is that adherents of this myth of deficiency say that this is precisely the most durable layer. Then timber (profiled and glued), as well as a number of other building materials, are no good at all. In this case, it turns out that all the coverings must be made from logs: frames for doors and windows, sheathing and rafters, and most importantly, work with an ax.
By logical argument, we can say that for rounded logs, the removal of sapwood is not a disadvantage. On the contrary, removing young layers reduces the risk of rotting.
And to finally refute the disadvantages of rounded logs regarding production, imagine that you are the owner of such a production. You have purchased raw materials with a diameter from 220 to 330 mm, about 2500 cubic meters. Fans of hand-cutting say that when removing sapwood, 30 or even 40% of the diameter of the log is removed. Then it turns out that at the output we get OCB with a diameter of 200 - 240 mm, and in cubic capacity we get 1500 cubic meters. The cost of such production of one cubic meter will be 10,000 rubles. As a result, it turns out that production is unprofitable, because the average selling price of rounded logs per cubic meter is 7000-7500 rubles and no one will work at a loss, this is obvious. Traditional processing from 2500 cubic meters. produces 2300 cubic meters. processed material. Due to the fact that the wood is sorted by diameter, only 1-3 cm is removed.
“Disadvantage” No. 2: It’s cold in OCB houses!
This option is possible if you used an OCB with a diameter of 180 mm, the area of the house is 250 m2, and the house itself is heated by one oil heater.
When designing a house for all-season use, you need to consider some parameters:
- Log diameter for residential buildings should be from 240 to 320 mm, there is simply no point in taking more.
- The cubic capacity of the house must be taken into account: the more air there is, the more difficult it is to retain heat.
- The floors of the first floor and the roof must be insulated; they account for 17 to 23% of the heat loss of the house.
Such wall material, like a rounded log, the reviews are quite positive. This construction material characterized by good thermal insulation and attractive appearance.
The quality of the material depends on the equipment where it was processed, on the place of growth (for OCB, the further north, the better), and also everything depends on the specialists who participate in the production.
Very important point is correct installation wall kit, you need to correctly install the dowels, lay the inter-crown seal or insulation. All work must be carried out by qualified specialists: from the device roofing pie before calculating shrinkage and caulking of walls. It is also important to use only quality materials and related tools.
“Disadvantage” No. 3: Rounded logs crack and burst
Naturally, anyone natural material natural humidity is really susceptible to shrinkage and shrinkage. And that's okay - it's not plastic. But as the owners of houses made of rounded logs say, reviews and complaints that excessive cracks appear without human intervention are fictitious. Luckily, there are sealants available to seal cracks. wooden walls, by the way, they were invented even earlier than the rounded log. To avoid the appearance of unnecessary cracks you need to:
- after the log house, treat the ends with PVA glue or lime, this promotes uniform release of moisture from the material, which means that the internal stress in the log will be significantly reduced;
- not worth a log possessing high humidity, coat with paintwork materials, which forms a film on the surface of the material;
- Incorrectly turned on heating is the main reason for significant cracking of the log and the formation of negative reviews. After completion of construction it is necessary to obtain detailed instructions about how to properly put a house into operation and follow it.
“Disadvantage” No. 4: The cost of a house from the Central Bank is higher than the cost of a log house
A log house is good appearance can be as beautiful as a log house.
At the same time, the cost of a log house is 25% more expensive than the cost of the same house from the Central Bank.
If the cost is the same, then perhaps you are lucky, but if it is lower, then you risk getting a house in which it will be a shame to receive guests, and you will feel uncomfortable and cold there.
If you don’t believe the words, then you can’t go against the numbers:
- When producing OCB, cutting cups at the factory is free, in any case, any self-respecting factory will not indicate this as a separate item in the price list. So, for cutting one bowl by hand, you will need to pay from 200 to 500 rubles, and a “Canadian” one will cost up to 1,750 rubles for 1 piece. There are approximately 700 to 3000 of them in the house, it all depends on the number of cuts and the height of the house. It turns out that the bowls will cost from 150 thousand to a million rubles, if not more. It takes up to half an hour to make one bowl: the machine cuts one bowl in 10 seconds, but it is impossible to cut out one high-quality one in less than 20 minutes, and this is a big minus in terms of assembly time.
- Cutting a groove takes even more time, and even masters can make mistakes. Only you are not destined to find out about this, the groove is inside. There is less chance that the machine will make a mistake, and you can check the grooves during unloading. In production, running a log into a groove takes 2 minutes, and cutting a groove takes about 30 minutes, this without any additional measurements and fittings, which are impossible to do without.
- A log house needs more serious caulking than a house made from OCB. The average price of caulking on both sides is plus or minus 100 rubles per linear meter. (50-60 rubles per linear meter / 1 side) In an 8x8 house there are approximately 1000 meters of groove, you will have to pay 100,000 rubles only for caulking, which will need to be produced 2 times.
We come to the conclusion that a house from OCB can be cut on a machine in 2-3 days, and the team will do the same work for several months.
The cost of a house made from OCB in comparison with the cost of hand-cutting:
Manual cutting costs about 9,500 rubles per cubic meter with a diameter of 240-280 mm. For an 8x8 house you will need 75 cubic meters of raw materials, in total you will spend 712,500 rubles, plus lumber costs approximately 85,000, delivery and assembly for roofing felt will cost 420,000, other materials for assembly cost a total of 50,000. In general, a good-quality house without jambs will cost a minus RUB 1,250,000, without foundation, but with delivery, accommodation for craftsmen and other related expenses.
The same house, but from OCB, with perfect cups and grooves, will cost about 950,000 rubles.
“Disadvantage” No. 5: Grandfathers knew what they were doing, and progress and development of technology is bad
At the same time, I would like to ask the question why hewers use machines and not horses. Getting to the heart of the matter, it is the development of technology that now allows us to build more durable houses. The first OCB houses were built 70 years ago, and to this day they look no worse. Perhaps even better than chopped ones due to their perfectly even shapes.
Finally:
To summarize, I would like to voice information that is not directly mentioned anywhere.
Producers of securities are large companies with huge capital. For example, the cost of the entire technological line for the production of proper quality central bank with a diameter of up to 300 mm is $450,000. It is these companies that buy huge volumes of first-grade logs, logs without rungs, this is necessary so as not to break machines, but the remains with bent logs and defects are increasingly going to small companies and enterprises. They also create all sorts of reviews and myths for gullible customers.
This is not an attempt to make arguments for anyone, we simply encourage logical reasoning. Perhaps the authors of reviews and myths about rounded logs simply cannot afford the costs of a production line.
In turn, the owners of the central bank production never denied the obvious:
- a house made of laminated veneer lumber is superior to a house made of OCB in all respects except price, which is the main disadvantage of the technology;
- brick house stronger than any wooden house;
- frame house may be warmer and even cheaper;
- a log house is a certain sign of prestige; a real log house is very expensive.
Any material has its pros and cons and is worthy of certain reviews. All technologies are good in their own way. We produce and build houses from rounded logs and do it as well as possible, because... We have high-quality equipment, sufficient experience and undeniable professionalism of our assembly teams. To produce OCB, we use only northern forest, which is distinguished by its excellent characteristics, warmth and durability. During our work, clients leave only positive reviews about houses made of rounded logs!
Since ancient times in Rus' they have been chopping wooden huts and tower. As construction technologies improved, other, more modern materials. However, to this day, a house made of timber is considered the most durable, environmentally friendly, reliable and strong. And it is not surprising that this is the material option that the owners choose during construction. country cottages. At the same time, many people prefer to build their house from rounded logs. Reviews from owners of ready-made cottages claim that this material is affordable and easy to use. Moreover, he has good quality and has a long service life.
Wooden houses
Today it is difficult to find a person who would not dream of living in his own cottage, built from environmentally friendly material. And this is only possible when using wood. Since ancient times, people have preferred to live in such houses. It was believed that all its rooms, saturated with woody spirit, had a beneficial effect on a person’s mood and well-being. And what can compare with the facade of such a house? The design of even the most modern buildings cannot be compared with it.
That is why houses built from rounded logs are very popular among consumers. And this despite the fact that their cost is twenty-five percent higher than the cost of frame buildings.
What is a rounded log?
What is this material? This ordinary log, which was processed on a special machine with a cylindrical milling system installed. Such mechanisms have been used for more than a century. However, initially the logs on them were processed for installation as
After the machine, the material takes on the form ideal cylinders having the same diameter and shape. The main advantage of such logs lies in their surface. After being processed on the machine, it becomes round and smooth. The material attracts many consumers, despite the fact that wood during processing loses a significant part of its most durable layer - sapwood.
For further use in construction, rounded logs are trimmed. They also create crown cups and grooves. Further mechanical restoration surface of the material. So, some logs are left convex on both sides, while in others the part that will be located inside the built house is made flat. Next, the material is treated with various compounds to give it fire-fighting and antiseptic properties.
Types of rounded logs
The atmosphere in wooden house, will be remembered for a long time by those guests who live in a brick or panel cottage. She is characteristic clean air, which is soaked in essential oils.
Type of wood;
Log diameter;
Building area.
One-story houses made of rounded logs will cost less. They do not require delivery of a large number of floor beams.
Sometimes the first two crowns are made from the most expensive material - larch. This will protect houses made from rounded logs from rot and moisture. Prices for larch beams are quite high, which will immediately increase the cost of construction. In the estimate previously compiled by specialists, you will be able to familiarize yourself with the prices for the manufacture and installation of the building’s power kit. All this will also have a direct impact on the amount that will have to be paid for a rounded house. On average, with an area of about one hundred square meters you will need to shell out 1 million rubles.
Advantages of houses made of rounded logs
The main advantage of such cottages is the use of safe and environmentally friendly pure materials. Natural wood has a positive effect on human health, creating a favorable indoor microclimate. An important advantage of using rounded timber is that it does not contribute to the occurrence of an allergic reaction. Such a house will be completely safe even for small children.
According to reviews from the owners of wooden cottages, the advantage of such a building is significant savings on the purchase of climate control equipment. Unique properties trees allow you to support optimal values humidity levels, and also create coolness on the hottest days and provide warmth on cold days.
The tree species used to build a house are distinguished by their durability, reliability, increased strength and density. In addition, their natural beauty allows you not to waste additional funds for interior decoration.
When building a house standard project construction time is minimal. It is not difficult to assemble a log house from rounded logs. The construction process is greatly simplified by specially designed grooves and bowls in the material.
An important advantage of houses made of rounded logs is their lower cost compared, for example, to brick ones. That is why wooden structure It is considered to be a budget option.
The advantage of houses made of rounded logs is their unsurpassed appearance. The design of such buildings will certainly evoke admiring glances from guests. In addition, houses made of rounded logs have excellent heat and sound insulation properties. This allows you to save on the purchase of insulating materials.
Disadvantages of houses made of rounded logs
The main disadvantages of such buildings include the construction period. Experts recommend taking a break from work for six months when building houses made of rounded logs. This time is necessary to complete the shrinkage process.
Besides, wooden buildings have low fire resistance. In order for the house to be as reliable as possible and have high level safety, the surface of rounded logs must be treated with special solutions.
Natural wood also needs protection from negative influence environment. For example, increased moisture will certainly lead to the appearance of fungi and mold, and will also cause the timber to rot. They destroy the tree and various pests. That is why the timber must be treated with special protective agents.
In the form of wind, they can cause the logs to twist. This is also a disadvantage of such houses. Deformation of a rounded log can occur under the influence of precipitation and sun rays. To prevent these unpleasant phenomena, the material must be constantly monitored, covering the cracks special compounds. Otherwise, moisture will easily penetrate into the house through the gaps.
In fact, this material made from milled logs that have undergone careful processing using special equipment. Depending on the type of machine used, it can be given a different profile. The entire production stage is divided into 6 steps:
- sorting saw logs by diameter;
- feeding to the rounding machine;
- cutting into house parts using chain and circular saws;
- the bowl-cutting machine receives parts under gusset- “cup”;
- treating all parts with an antiseptic;
- packaging in special bags for further transportation.
Moreover, during processing they can be used different kinds machines – through-type, turning and milling (positional), center, broaching and others.
Rounded log: pros and cons
This material has both its pros and cons. The advantages of rounded logs, first of all, lie in completely ecological production. No chemical adhesives are used in the manufacturing process. Secondly, houses made of rounded logs – very solid construction, since the log has the same diameter along its entire length. This provides more long term operation. Third, has increased insulating ability, thanks to minimal gaps on the crowns.
The material itself has a high ability to accumulate heat and, moreover, a fairly low thermal conductivity. Fourthly, Log elements can be connected at any angle. This provides truly excellent opportunities for the implementation of any wooden structures.
Fifthly, significantly saves money and labor during assembly, since the logs arrive at construction site with ready-made channels and cups. All the craftsmen have to do is collect them. At sixth, the material has an aesthetically attractive appearance and does not require further decorative finishing.
The disadvantages of rounded logs are due to the fact that the topmost protective layer is removed during processing. That's why they appear the following disadvantages: shrinkage of the first floor of the structure by an average of 10-20 cm; the appearance of cracks, twisting of logs in a spiral under the influence of wind. The first drawback is especially noticeable. Shrinkage lasts from 6 months to 1 year, and during this period it is important to ensure gentle operation of the house. The use of heating devices is undesirable.
How to determine the quality of logs?
Quality of rounded logs directly depends on the processing mechanisms, as well as on the qualifications of the employees performing this work. So, we will describe the points that you should pay attention to when purchasing. Firstly, all parts must be made from the same type of wood. Secondly, rot, cracks, and chips are not allowed on the products. Thirdly, the material must be perfectly flat, curvature is excluded. Fourthly, the deviation in diameter and length between logs can exceed a maximum of 2 mm.
Fifthly, each product must have markings confirming a particular specification. Sixthly, log houses made from rounded logs are made only from growing trees (not dried out before felling). This is necessary to ensure natural humidity. Seventh, the entire surface is treated with an appropriate antiseptic for longer service life. If all these conditions are met, the service life of a rounded log can be more than 20 years.
Log houses are very popular, especially recently. More and more people prefer to make this type of building both for permanent living in them and for temporary or dacha option. But at the same time, few people think about whether it is always advisable to build such a house. After all, a house based on a log frame has both its advantages and negative qualities.
Log houses do not require additional external and internal finishing. You can live in the building immediately after construction.
But before we start looking at the 5 main positive and 5 main negative qualities, one should take into account the fact that it is not necessary certain subtleties such buildings will in all cases cause harm or benefit. A lot changes depending on the situation and conditions.
Positive traits
So let's look at the pros first. log houses. As a rule, different specialists see them completely differently. However, it would be more acceptable to consider those components that will be common and positive for absolutely everyone.
Log buildings made from logs look very beautiful both outside and inside, even if the wood is not processed.
- Environmental component. Undoubtedly positive property log house is its environmental friendliness. Moreover, this is not only the safety of the material, but also its usefulness. Any natural wood secretes resins that have a beneficial effect on human body. Wherein conifers have exceptional benefits.
- Practical component. This refers to the use of the premises during its service life. If in a log house it is maintained optimal temperature and there is constant access to fresh air, the material will serve for a long time without causing any trouble. So, in winter you need to warm up the air in the room, and in summer you need to let in as much air as possible from the street. Then you will be able to avoid dampness or dryness of the rounded log.
- Functional component. Log buildings made from logs have an excellent property - the so-called self-regulation of temperature. This feature lies in the fact that in warm weather the house perfectly retains and retains heat. But in the cold, freshness prevails inside the room, due to which there is no feeling of stuffiness or intense heat.
- Aesthetic component. Wooden houses always look very beautiful both outside and inside. Moreover, this is noticeable even when the wood is not treated. If the wood is also treated with patterns, the look will be stunning. It is important that the building retains its original naturalness.
- Finishing component. It lies in the fact that the log house does not require special type finishing. At a minimum, you will need to process a well-rounded log and remove any sharp parts on it. There is no need for a frame or expensive tools for installation.
Negative sides
These were the advantages. But you should also know the disadvantages. Negative sides This type of construction also has, although in terms of quality, the advantages, of course, significantly outweigh them. So, the following disadvantages can be noted.
One of the main disadvantages of building a house from rounded logs is the impossibility of installation without the help of specialists.
- As the main negative property It should be noted the high degree of fire hazard of such houses made of rounded logs. As you know, wood burns very well. Therefore, even a weak, careless fire can cause a large fire. Of course, these days special impregnations are being developed that will prevent combustion, but the perfect material has not yet been invented. However, even in the context of this minus there is a plus: when burned, wood does not emit harmful substances, unlike other modern building or finishing materials.
- The second quality that carries negative character, is the difficulty of installing a wooden building. The process cannot be carried out independently, without the help of specialists. If you make even a minor mistake, it can take a long time to correct it.
- Another disadvantage is the inability to carry out activities inside the house Finishing work. A rounded log is a living material, which, immediately after thorough installation, must stand for some time and get used to the place. However, it may shrink. Conduct facing works round log house preferably 1-2 months after completion of construction work.
- It is inappropriate to build a log house from rounded logs if you do not expect to live in it permanently. If this is a summer house or temporary home, then it is better not to use it for construction good log house. If the house is not constantly heated from the inside, dampness will quickly develop there, which will lead to fungus, and in extreme heat, without sufficient air access, the wood can crack and deteriorate.
- From time to time, log houses need to be strengthened. What is meant here is that due to minor changes in the size of the wood during fluctuations in ambient temperatures, the bottom of the building above the foundation or the roof can deteriorate. These areas of the house need to be treated frequently by special means, and, if necessary, additionally lined with boards.
So, the main pros and cons of houses made of rounded logs are considered.
Undoubtedly log house, unlike foam block buildings, has big amount advantages. It, like a brick house, can last quite a long time. for a long time, and being in it is good for human health. But use it as country house or dachas are undesirable.
Features of a log house
Log houses, the design of which you can choose yourself, have a long service life permanent residence in them. When heating a house daily with a stove, it not only heats the room, but also ventilates it. When a fire burns, air comes from the room and exits through the chimney. In its place comes Fresh air and thanks to this, damp, stagnant areas do not appear in the house. This process provides such a home with a long service life.
For this reason, those houses that are not heated, or if this happens irregularly, quickly become unusable. One day visit log house V winter time with the natural combustion of the furnace, it has the same effect on the log house as the annual cycle of changing seasons. If you use it only in summer time, then there is no need for its quality factor.
A finished log house has traditional cuts and connections and, without practical skills, it is almost impossible to perform the work efficiently.
Pros and cons of log houses
Wood has been used for housing construction since ancient times. And today it is one of the most popular materials. It has enough advantages - environmental friendliness, reliability, durability, and at the moment houses made from this material successfully compete with other materials.
The durability of a log house directly depends on the quality of its construction.
The most popular for construction is rounded logs. Houses made from this material are suitable for both seasonal and permanent residence. And the available modern projects wooden houses allow you to build a building of any complexity category - from a small building with a veranda to a solid building with open terraces and balconies.
Energy-saving houses made of timber are cozy and warm. Due to their low thermal conductivity, they are fresh in hot weather and warm in winter. The air in such houses is much “lighter” due to the phytoncides released by the tree. The main types of wood for construction are pine or spruce. They have sufficient strength and at the same time have a low cost. For lower crowns At home, larch is used, which has greater moisture resistance and strength than pine or spruce.
To protect wood from pests and negative external influences it is impregnated with a special impregnating liquid.
In addition to a large number of advantages, this material has. The most important thing is its fire hazard. Therefore the walls wooden house treated with fire retardants. In addition, a log house has shrinkage, which significantly increases its construction time.
