Production of wooden houses of laminated veneer lumber in Siberia. Houses made of laminated veneer lumber
Timber harvested in winter period, has a long list of advantages: it is more durable.
The minimum content of juices and sugars in the winter forest reduces the likelihood of fungi, mold, rotting, and the appearance of blue and black spots.
Its own raw material base allows the Shelekhovsky woodworking plant to confidently declare - here you will be offered exclusively winter forest excellent quality.
Correct cutting
Sawing logs into boards, from which timber is subsequently glued, is carried out in different ways.
The most common method is mixed cut, simpler and cheaper. With this option, the quality of the board is noticeably worse. During operation, the boards begin to crack at the joints of the annual rings, become brittle and peel off.
The most successful is the ex-log method - cutting through the core of the log. Boards obtained in this way are more durable and look more aesthetically pleasing. As a result, laminated veneer lumber looks more textured and more expensive.
The Shelekhovsky plant uses the second cutting method - tangential or ex-log. The Swedish ARI circular saw line is responsible for proper sawing.
Drying boards
Despite the fact that winter harvested wood has low humidity, the boards still need to be thoroughly dried. At this stage, they minimize natural deficiencies wood - susceptibility to various fungi, blackening. But only if drying is carried out in a soft mode.
Ideal conditions are created in special drying chambers oh and they require from 10 to 30 days. Unfortunately, many companies cannot afford to wait that long - this slows down the entire production process.
The Shelekhovsky woodworking plant has 17 drying chambers with a total loading volume of 2,400 cubic meters. meters. This allows us to guarantee that construction deadlines are met without disruptions or delays, even in the high season.
Processing (planing) of boards
Preliminary calibration helps to identify falling knots and resin pockets in the board.
The result is a lamella - a perfectly flat board ready for splicing.
To maintain correct temperature regime a return system was installed at the Shelekhovsky woodworking plant warm air Dantherm Filtration (Denmark). And even if you comply necessary conditions At the factory, they strictly ensure that after planing the lamellas, they wait no more than an hour for the next stage.
Merging of lamellas
The stage at which an important characteristic is determined - the length of the future laminated veneer lumber; it can vary depending on the project of the house and reaches 12 meters. The merging of lamellas at the Shelekhovsky woodworking plant takes place on an automated line made by German manufacturer Weinig, a world leader in the industry.
A specialized workshop (which not every manufacturer has) allows the Shelekhovsky plant to produce laminated veneer lumber up to 12 meters long. This means that the number of seams and joints on the walls of the house is reduced to a minimum.
ShelDoZ offers another unique technology, developed by the plant’s specialists - radial splicing of lamellas. The method resembles the manufacturing technology furniture board, providing additional strength to the product. In addition, timber with radial lamellas fused looks so exclusive that the walls easily become the main decoration of the house!
Pressing lamellas
The stage at which spliced lamellas are transformed into laminated veneer lumber - a natural high-tech material with excellent quality. At this stage, two characteristics are important - the quality of the glue used and the possible maximum width of the beam.
It is important that the air temperature in the processing workshop is maintained at 20 degrees Celsius. Otherwise, the wood begins to dry out on top, which in the future can have a bad effect on the quality of the product.
The German heavy press LHP 14 series, used at the Shelekhov plant, is capable of pressing any type of wood, including durable larch, because the process provides pressure of more than 12 kg. per 1 sq. cm. It is a high-quality press that ensures the final width - than better equipment, the thicker, and therefore stronger, the walls of your house will be.
ShelDoZ uses environmentally friendly glue on water based(Norway), without toluene and formaldehyde. The glue has a European quality certificate for the production of structural timber.
Shelekhovsky woodworking plant offers interesting combinations different types of wood in one beam, for example, outer part made of cedar, and the inner one made of spruce or pine. Possible options- 240x240 mm or 280x280 mm for external walls, 180x240 mm. for structural beams and interior walls.
Profiling timber
At this stage, the laminated veneer lumber is profiled for further cutting into parts of the house kit.
Technological machineRekor Mida at the Shelekhov plant is capable of parallel planing and milling of timber on all four planes. Processing occurs in an automated mode, without the use of manual labor, which guarantees smooth surfaces, even and clear cutters. The maximum possible beam cross-section for RekorMida 300x500 mm is a record for the region.
Designing a multifaceted house model for cutting
The high-precision woodworking complex Hundegger K2 (Germany) requires a specialized house design, in which every detail is calculated down to the millimeter.
At this stage, the house design developed by the architects is transferred to the programCAD-Work, designed to prepare files onHundeggerK2. Based on this individual multidimensional model, the equipment subsequently produces all the details of the house.
The only one in the regionHundeggerK2 and design specialist inCAD-Work work at the Shelekhovsky woodworking plant.
Humidity is 10-12% and, as a result, minimal shrinkage(less than 1%) - finishing work can be carried out immediately after installing the roof;
A special profile lock firmly and accurately positions the beam in the wall relative to the above and underlying crown;
High strength and physical and mechanical properties, rigidity, clear geometry and structural stability;
Fast construction time (ready-made construction kit with pre-cut bowls), without the need to order a faucet;
Possibility of use for covering long-span structures;
The heat transfer resistance is almost twice as high as that of solid wood, since the structure of the timber is more uniform and free of cracks. For example,the thermal conductivity of a 150x150 beam is approximately the same as a log with a diameter of 240 mm;
Resistance to various climatic conditions, biological factors(insects, fungus);
Production in accordance with DIN, GOST standards. Wood species: spruce, pine, larch, cedar.
Glue: 1-component, polyurethane Purbond (Switzerland), class D4, environmentally friendly, certified.
Sections: 140/160/180/200/240 (h) * 80/120/160/200/240, length up to 13 m.
Surface quality: planed, roughness up to 200 microns.
Today, window laminated veneer lumber is one of the popular types lumber. The humidity of these products is about 10%, which is achieved thanks to special method drying. Compared to standard timber, this product has high quality characteristics, strength and resistance to various impacts.
The Siberia LLC company is engaged in the production of Tule window beams. Having our own raw materials and production base for the manufacture of these products allows us to provide high-quality products in short terms. We produce next view sections - 72x86 and 82x86, with a length of 3 meters or more.
Window beams can be divided into three categories:
- The middle lamella is spliced along the length, the two front lamellas are solid.
Dimensions:
Cutting: semi-radial and radial cut for external lamellas, tangential and semi-radial - for internal ones.
Splice step: for the internal lamella - 150 mm, for the external one it is solid along the entire length.
- Two lamellas are fused along the length, one front one is solid.
Dimensions: 72x86, 82x86 and length from three meters.
Cutting: radial or semi-radial cut for two external lamellas, tangential and semi-radial - for the front
Splice step: for internal lamellas - 150 mm, for external ones - 300 mm.
Use is not allowed: resin pockets more than 20 mm, rot, knots and cracks.
- All lamellas are spliced along their length using specialized glue.
Dimensions: 72x86, 82x86 and length from three meters.
Cutting: internal and external lamellas of radial or semi-radial cut.
Splice step: for internal lamellas - 150 mm, for external ones - 250 mm.
Use is not allowed: resin pockets more than 20 mm, rot, knots and cracks.
Characteristics of laminated veneer lumber.
Window timber has increased resistance to various influences, such as rotting, due to the reduced humidity of the products. Wood coniferous species contains resinous substances that are a natural antiseptic, which makes these breeds the most popular in this area.
Due to its structural characteristics, laminated veneer lumber for windows is less susceptible to various humidity and temperature deformations, in contrast to solid wood. These products are more durable and have the principle of equal strength in all directions. They also do not have wood defects, such as cracks and knots, which impair the strength and appearance.
During operation, glued products do not change their shape, are resistant to cracking and have a high level of quality of the front surfaces. Also this type products have very low shrinkage - up to 3 times less than sawn timber.
Most often, pine and spruce are used to produce laminated veneer lumber for windows. Larch and cedar are used less frequently.
Window timber production methods
Production window beam is carried out by gluing three lamellas of radial and semi-radial cuts along the thickness. The moisture content of the timber is reduced by relieving stress due to the thinner thickness of the lamellas compared to solid wood. Wood warping is minimized through the use of gentle drying modes in convection chambers. After drying, the workpiece is calibrated.
The lamellas are checked for defects, sorted and quality-reducing defects are removed. Then the blanks are spliced along their length using specialized glue. The next step Production of window beams is calibration, which is carried out by planing the product on four sides.
The lamellas are glued together into timber using a specialized press. The glue used does not have moisture-proofing properties, so the entire solid wood “breathes”.
When deciding on housing for ourselves and our family, each of us strives to find the best - a cozy, environmentally friendly area, the “right” construction company, best designer... And, of course, high-quality building material. And it increasingly happens that, having sifted through a bunch of literature and received a lot of advice, people return to what has been tested by many generations in many countries - they choose wooden houses.
Such a choice today could be called a “return to origins”, if not for one significant “but”. Housing construction technologies are constantly being improved and are modern wooden houses They are in no way inferior to their “brothers” made of stone, brick or concrete, and in many respects they even surpass them. Wooden houses provide their residents not only with comfort, coziness and environmental friendliness, but also with high levels of safety, durability, and efficiency. Especially when it comes to modern housing natural material, which appeared here relatively recently, but is already rapidly gaining popularity. Of course, you already guessed what we are talking about - this is laminated veneer lumber.
Of course, it’s no secret that wood is a “living” material, organic, and therefore delicate. Many factors environment- beginning with ultraviolet radiation and ending with fungi and insects - negatively affect wood structures and contribute to its aging and destruction. Fortunately, all these issues can be resolved. Today, there are many tools and technologies that can neutralize these factors, make their influence insignificant or completely eliminate them. The only drawback of this method is that it also requires some investment of time and money.
That is why it is so in demand today laminated veneer lumber- he has a much more flexible “character”, practically without losing the advantages of a solid natural wood. Glued laminated timber You can even call it a perfect material, and this will practically not be an exaggeration.
The first is not obvious, but very important advantage of the material in question - laminated veneer lumber It is impossible to produce what is called “on the knee”, in artisanal conditions. Its production requires well-established production using expensive equipment. It's complicated technological process, which includes several stages.
At the first stage of production quality log blossoms onto boards required thickness and dried until optimal humidity, after which the workpiece will be processed to an ideal geometric shape. Next, the treated boards are turned into lamellas, spliced along the length. Then the lamellas undergo a thorough quality check and treatment with the necessary protective compounds and glued together in a press under high pressure, using water-based glue. The glue, being environmentally friendly, does not affect the breathability of wood and its natural properties, allowing it to maintain full air circulation. After final processing and profiling, the result is high-quality and ready for use. laminated veneer lumber for wooden house . With this technology, the risk of purchasing low-quality material is reduced to almost zero.
Besides, laminated veneer lumber is a construct - that is, it is structured and strict parameters can be applied to it. Consequently, documentation is provided for it, which clearly indicates these same parameters, for example, humidity, density, storage conditions and others. Accordingly, a house made of laminated veneer lumber is built according to the results of precise calculations.
One of the main arguments presented by opponents of construction wooden houses, is the fact that the tree is deformed over time, dries out and gives a very significant shrinkage. Yes, indeed, wood has this property, and shrinkage ordinary timber or logs can reach 10-15%. But the technology for producing laminated veneer lumber requires careful drying of the wood, therefore, after the construction of the house, deformation of any kind is practically eliminated - even with a sharp change in atmospheric conditions.
In general, stability of shape and size is perhaps one of the most important factors when choosing a building material, especially when it comes to wood. Glued laminated timber in this case - the right choice. Due to the fact that the wood is not only dried before gluing, but also undergoes strict quality control, shrinkage ultimately does not exceed 1%. This, among other things, means that finishing work can begin immediately after wooden house will be collected. Moreover, since laminated veneer lumber at home does not cause shrinkage, practically eliminating the formation of cracks and crevices in an already constructed house.
However, the choice of such material as laminated veneer lumber, in general, significantly reduces the time required at almost every stage of building a house. Another one of him distinguishing feature thing is laminated veneer lumber It is manufactured at the factory in conditions close to ideal, at a constant temperature and humidity that is optimal for wood. And all the components of the future structure are carefully adjusted, checked and supplied with accompanying documentation. In fact, a finished wooden house arrives at the construction site in disassembled form, and all that remains is to assemble it, like a designer - according to the prepared documentation. In some cases, the construction time for a house made of laminated veneer lumber can be only 3-4 weeks!
Also, the speed of putting a house into operation (and, let’s note in passing, the cost of the property as a whole!) is also influenced by the fact that laminated veneer lumber, thanks to high quality surface, practically does not require subsequent decorative processing. Its production technology assumes that all knots, stains, and any other defects will be rejected, and the workpiece will be perfectly matched in color and texture. Glued laminated timber – beautiful and aesthetic, like any wood, it has an impeccable appearance.
By the way, to the question of aesthetics and architecture. Glued laminated timber provides great scope for the imagination of architects: it allows you to design and construct multi-story and spacious buildings without worrying about uneven loads, reliability of floors and the need for additional load-bearing walls. The high strength of the material allows you to create beams reaching a length of 20 meters. Such a beam can withstand heavy loads without requiring the installation of additional supports. Thereby laminated veneer lumber can be used in the construction of structures such as swimming pools.
Glued laminated timber allows you to save significantly even on the “basis of the foundations” of the house: the lightness of this material allows you not only to build a house on an inexpensive shallow foundation, but also in some cases to use an existing foundation. Thanks to its lightness and stability, it makes it possible to build buildings on any type of soil and in any geological conditions.
Wooden houses, the material for which was laminated veneer lumber, have high heat specifications not only due to the natural properties of wood. The natural thermal insulation and breathability properties of natural wood make it possible to eliminate the need for additional insulation. And the tight connection of the beams during assembly is due to the need for additional sealing of the joints.
Additionally, laminated veneer lumber makes it possible to carry out hidden wiring utilities, for example, in floors, pillars and beams. This also reduces the cost of carrying out additional work and allows you to maintain the attractive appearance of the building. Also, thanks to treatment with modern antiseptics and fire retardants, laminated veneer lumber reliably protected from most external influences: moisture, fire, insects.
Of course, with all the advantages of the material considered, we should not forget that building a house from laminated veneer lumber does not tolerate unprofessionalism, but, on the contrary, requires the appropriate qualifications, organization and experience from the craftsmen. If these conditions are met, a house made of laminated veneer lumber will delight its owners with its beauty, comfort and reliability for a hundred years!
We offer you laminated veneer lumber from Angara pine:
profile 200x160 and 200x185, 240x185 at a price of 24,500 rubles per m³ of product and timber from regular pine at a price of 22,500 rubles. per m³.
Are you looking for a profitable place to buy laminated veneer lumber? On our portal you will find a large number of interesting offers from manufacturers and sellers of this building material. A wide range, price comparison, photos and videos, technical specifications, delivery conditions - all this will help you make a good choice!
Advantages of laminated veneer lumber
Laminated timber is one of the most popular building materials today. This is facilitated by a number of its features:High structural strength
The strength of laminated veneer lumber exceeds the strength of solid wood structures by an average of 60%.
Stability geometric shapes, lack of internal “tension”
Having decided to build a house from laminated veneer lumber, you can be sure that the building will not shrink, and the individual elements from which its walls are made will not deform.
No defects on the finished material
Each workpiece is carefully checked for defects, all of them are selected according to texture and color. This is also facilitated by the use of high-quality adhesives that minimize the risk of cracks. Buildings made of laminated veneer lumber, even many years later, retain the original appearance and strength of the walls.
Excellent thermal properties
Glued laminated timber has low thermal conductivity. In winter, the walls retain heat, and in summer they do not allow heat to pass through.
No need for finishing work
Walls made of laminated veneer lumber are smooth, smooth surface, which allows you to save on the purchase of finishing materials.
High resistance to microorganisms and fungi
Structural features of the material, its processing by special means, preventing rotting, as well as the presence of adhesive layers, prevent bacteria and wood pests from penetrating deep into the wood.
Efficiency of construction work
In Siberia, as in any other city, this indicator has special meaning for builders. A team of 6 people is enough to erect a building with an area of about 100 m2 in a month.
No need to build a strong foundation
Buildings made of laminated veneer lumber are lightweight high strength. Installation of the foundation is not necessary, which saves time and money spent on construction.
Low shrinkage rates
This property allows you to start finishing immediately after completion of the main construction work.
Environmental friendliness
Buildings made of laminated veneer lumber are completely safe for human health. In addition, the material supports optimal microclimate indoors, due to its “breathability” (natural regulation of humidity levels).
Glued laminated timber: what types of this material are sold
They sell several types of laminated veneer lumber:- fencing, for non-load-bearing partitions;
- structural, for load-bearing walls;
- single layer;
- multilayer.
Material of manufacture and properties of laminated timber
The essence of the process of producing laminated veneer lumber is gluing individual boards of certain sizes together using adhesives. These boards can be made from different breeds coniferous trees:- pine;
- Siberian cedar pine;
- cedar;
- larch (some species);
- Douglas fir (used only in the USA, Canada, Japan).
- melamine This adhesive composition is used for the manufacture of long-span timber. Used in Russia and European countries. Color – transparent.
- resorcinol. Used in the manufacture of structures intended for external walls that must withstand high level humidity. Mainly used in the USA and Japan. Color – dark.
- polyurethane. A quick-hardening adhesive that allows the production of laminated veneer lumber several times faster. Makes it possible to glue wood with a humidity level of up to 18%. Color – transparent.
Production of laminated veneer lumber
Comparison technical properties glued and regular timber used in construction
| Property | Glued laminated timber | Regular timber |
| Shrinkage | 0,3% | 6-8% |
| Geometry violation | Excluded | Maybe |
| Appearance of cracks | Allowed for length, does not affect strength, there is no complete cracking | Cracks up to 1 cm in width and up to 15 cm in depth are possible. Has an effect on strength |
| Susceptibility to fungi, rot, microorganisms, etc. | Excluded | Maybe |
| Front surface view | Perfectly smooth, does not require finishing work after construction | Presence of knots, cracks, requires finishing work |
| Exposure to temperature changes | No deformation | Possible deformation |
| Thermal insulation indicators | High, corresponding to SNiP standards. No additional thermal insulation required | Low, use required thermal insulation materials under construction |
Construction from laminated timber, product selection
Information about the main stages of construction of buildings made of laminated veneer lumber will allow customers to adequately assess the qualifications of craftsmen and keep the quality of work under control:- Creation of a project, coordination of technical nuances, drawing up estimates, determining the cost of work.
- Laying the foundation. Due to the lightness of laminated veneer lumber, a powerful foundation is not laid under it. If the area is not characterized by elevated levels groundwater, the height of the foundation will be 0.5-1 meter high.
- Installation of the building frame according to the project.
- Roofing works according to the project.
- Connecting the house to communication engineering networks and the electrical system.
- Domestic Finishing work according to the customer's wishes.
The first and most important point What you should pay attention to when choosing a building material is its purpose.
Other options are also possible:
House made of laminated timber for permanent residence
To create comfortable conditions living in a house made of laminated veneer lumber, where you plan to live permanently, you should opt for building material with a cross section of 200-250 mm, having a heat transfer of 1.3 m°C/W. This thickness is quite enough to create a comfortable temperature regime, even on frosty days. An economical option for such a house is walls made of timber with a cross-section of 140 mm with a thermal resistance of 1 m°C/W, insulated on the outside with penoplex or Ursa. On top of the insulation is decorative cladding.
House made of laminated veneer lumber for seasonal living
If you use the house during the first night frosts, then it is better to choose material with a cross-section of 160-180 mm. This wall thickness will withstand temperatures within 1-2 degrees below zero. If you leave the house before the first cold snap sets in, you can purchase timber whose thickness is 140-150 mm. Additional insulation There is no need to do walls.
You should also pay attention to the following points:
Origin of the tree
If the wood for production is brought from the northern regions, then it will be much better quality than wood from the southern regions. The cheapest, and therefore low-grade, wood is considered to be from swampy areas.
Wood type
Middle class - pine or spruce. Low grade - pine and spruce slats, mixed. You can distinguish pine from spruce by the number and size of knots. Pine has few of them, but they are larger.
Type of timber
The material must match technical specifications, where tolerances are specified for the number of knots and the presence of defects. If the seller says that laminated veneer lumber complies with GOST, this does not at all guarantee the quality of the material, since GOST has too many tolerances.
Types of laminated veneer lumber sold:
Material warranty:
If the manufacturer provides a guarantee on the material, this is a big plus. Immediately clarify the point about replacing defects, reporting stock, the type of profile used, the possibility of cutting wind pockets in the bowls.
Length of laminated timber:
By the length of the proposed timber you can find out what equipment is used for its production. If a manufacturer offers timber 12 meters in length, this means that modern equipment is used that is capable of producing such long lamellas. Old equipment is capable of producing timber up to a maximum of 6 meters in length. Pay attention to the length of the face boards. The longer they are, the more quality wood was used. The highest grades are boards 1.5-2 meters on average, but such timber is usually used in shipbuilding; lower grades of timber can be used for wall construction.
Video. Production of laminated veneer lumber:
Video. Construction from laminated veneer lumber: