House made of laminated timber technology. Modern technology for building a house from laminated veneer lumber. Modern houses made of timber: serial and individual projects

Compared to other wood building materials for the construction of house walls, laminated veneer lumber can rightfully be called the best. These products have many advantages that make houses made of this material strong, warm, durable and environmentally friendly. The technology for building a house from laminated veneer lumber is quite simple, so this construction method can be chosen for self-construction of a house. During the work you will not need construction equipment, which is an additional advantage. You can also save on arranging the foundation, because lightweight wall material will not heavily load the foundation.

Manufacturing Features

If you decide to make laminated veneer lumber yourself, the production technology requires specialized equipment. Without it, you won’t be able to make such material yourself.

The technology for manufacturing laminated wood material includes several stages:

Before production, the wood is carefully sorted. Only high-quality raw materials are selected. Wood is selected taking into account the variety, species, size and other important characteristics.
Next, the wood is sawed and dried. The material is sawn into boards of a certain size. The thinner the workpiece, the better it will dry. Drying of products is carried out in special chambers with modern equipment. The material is dried to the specified moisture content under continuous equipment monitoring.
Control and calibration. Next, the dried workpieces undergo careful control and calibration. This can be done either with special equipment or visually by workers. As a result, defective boards are removed.
Formation of lamellas. This stage consists of two stages. First of all, the dried material is sent to a machine, where areas with defects are cut out of it. After this, the board is cut into thin lamellas, which are spliced in length.
Next, the workpieces are treated with antiseptic compounds to protect against rotting, fungus and mold, and are also impregnated with fire retardants to increase their fire resistance and resistance to environmental factors.
After this, the blanks are lubricated with a special waterproof glue and sent under the press. As a result, under pressure, the adhesive penetrates into the pores of the wood and reliably glues the lamellas together. The total number of lamellas in one beam can be 2-5 and depends on the required thickness of the product. The final thickness of the timber can reach up to 250 mm.

Important: in the manufacturing process of timber, only high-quality, harmless glue is used that meets all safety standards. In addition, the adhesive used should not interfere with the natural “breathing” of the wood.

The last stage of timber production will be its profiling. Now the timber is cut to length to the required dimensions, after which it is sent to a machine on which locking joints in the form of tenons and grooves are cut into the body of the product. These grooves and tenons are precisely adjusted in size and fit together without gaps or cold bridges. Thanks to this lock, when laying the timber, a sealed connection is obtained that does not require the use of tape inter-crown insulation.
To protect the product from mechanical damage or surface contamination, it is packaged before storage or delivery to the retail chain.

Typically, the glued timber is made from one type of wood. But in some cases, to increase its aesthetic appeal, lamellas of more expensive types of wood are used as two outer layers. Such products are more expensive than laminated veneer lumber made from one type of wood.

Advantages and disadvantages

Glued laminated timber, the manufacturing technology of which is described above, has its pros and cons. Among the positive qualities of this building material, thanks to which it is so popular, it is worth listing the following:

High-quality dried and cut pieces absorb various protective compounds well. Thanks to this, the finished product and the entire building are reliably protected from the negative effects of weather factors, moisture, damage by microorganisms, insects, and are also less susceptible to fire.
Thanks to a special technology for manufacturing and cutting locks, it is possible to achieve the most dense and airtight connection of individual wall elements. There are no gaps or cold bridges in the wall structure, so your home will always be warm, which will allow you to save on heating costs. You will receive additional savings during construction due to the fact that you will not need inter-crown insulation. In addition, a tight and even connection of the elements, as well as the absence of insulation sticking out of the cracks, will have a beneficial effect on the appearance of the house.
The timber manufacturing technology helps preserve all the positive qualities of wood, thanks to which a favorable microclimate is formed in the house, humidity and temperature in the room are regulated.
Thanks to chamber drying technology, well-dried wood practically does not shrink, so after building the frame of the house, there is no need to take a long pause for shrinkage before starting finishing work and moving into the house.

Attention: shrinkage of a house made of laminated wood material, according to technological standards, should not exceed 1.5%.

The beautiful, smooth surface of the timber allows you to do without any finishing of the house, which will allow you to save a lot.
The load-bearing capacity of laminated veneer lumber is much higher than that of solid wood products. This makes it much better than ordinary profiled timber, rounded and untreated logs.
Dimensional stability. This material is not afraid of changes in humidity and temperature, prolonged static loads, freezing and thawing. It does not respond to all these factors by deformation, shrinkage, cracking and changes in geometric shape and size.
There are no through cracks on the laminated material, therefore the thermal insulation characteristics of such timber are higher than those of other solid wood products.
Since during production it is possible to prepare laminated veneer lumber, the dimensions of which will be precisely adjusted to the future construction, during the assembly process waste will be minimal or even equal to zero. This helps reduce the estimated cost, speeds up the construction process and allows you to save on labor costs if the house is built by a hired team.

Among the disadvantages of glued products, it is worth mentioning the following points:

The weight of laminated veneer lumber is slightly higher than that of conventional wood products. However, the increase in specific gravity is not critical, so this will in no way affect the manufacture of the foundation.
You should only buy glued elements from a reliable, trusted manufacturer, since you cannot control the manufacturing process. Unscrupulous manufacturers take advantage of this and use low-quality glue or defective wood; they may also work on outdated equipment, which will affect the quality of the product.

Timber laying technology

The technology of construction from laminated veneer lumber is no different from the installation of any wooden house. You can make a lightweight foundation by choosing a shallow strip foundation, a pile-screw or columnar structure. After this, horizontal waterproofing of the base must be performed. To do this, two layers of roofing material are laid on bitumen mastic.

After this, adhere to the following installation sequence:

A larch backing board is laid on the foundation. It must be subjected to antiseptic treatment. The board is leveled. Thanks to this board, it will be possible to protect the expensive timber of the first crown from the destructive effects of moisture and rot.
Next, we proceed to laying the first casing crown. First, two beams are laid on opposite walls, and after that the elements on the walls adjacent to them are mounted in grooves. To make a crown molding, you should choose the most durable, high-quality products with a large cross-section.
The angular connection of elements can be performed in different ways - “in a paw”, “in a bowl”, “in half a tree”, that is, with a remainder or not. The warmest connection is obtained when laying corners according to the Canadian bowl principle. As a result, all elements are reliably connected into one structure without cold bridges or blowing.
The first beam is attached to the foundation using anchor bolts, which are inserted into pre-drilled holes.
The following elements are being installed. The locking connections of all rows are joined according to the “groove-tenon” principle. The corner joints of the elements must be insulated.
If there are no grooves in the thickets of the timber for insulation, then it can be laid directly on the bowl of the underlying element at the corner joint.
After laying each subsequent row of timber, they are pressed. The width of the inter-crown gap should be no more than 1 mm. It will close after the building settles.
Every three crowns, additional fixation is made using dowels - long wooden elements. They will give the structure additional stability and protect the logs from twisting.
Also, the crowns are additionally tightened with pins to prevent the formation of gaps between the crowns after the building shrinks.
The process of installing a roof is the same as when building a house from other wood materials.

The article was prepared with the support of specialists from the SKMD company - Siberian Low-Rise Housing Construction Plant.

A dream that is not difficult to realize is a spacious house made of wooden beams, built for a family according to an individual plan. The construction of houses from laminated veneer lumber is not uncommon nowadays, architects offer a variety of projects, and master builders have brought the technology of their construction to perfection.

A country house made of wood is optimal in all respects. Living in it is warm, dry and cozy. Beautiful, light and environmentally friendly, it is always a prestigious, elegant, comfortable home.

Which house is better

Before embarking on specific actions to build your own ideal home, the main construction material is determined. If this is a tree, then it is not ordinary thick logs, but elegant, properly made laminated veneer lumber. This is a common building material that is good for health, and building a wooden house is much faster than using the same brick or cold concrete blocks.

The stages of building a house from laminated veneer lumber suggest the possibility of sequential delivery of the material and its immediate installation, with no additional finishing required.

Houses made of laminated timber have a number of advantages over others:
environmental friendliness and safety;
guaranteed strength;
heat conservation;
natural ventilation;
comparative lightness of construction;
construction speed;
unlimited possibilities of architectural solutions;
comfort.

The technology of building a house from laminated veneer lumber, proper preparation of the material ensures a reduction in the internal stress of the wood, protects it from the appearance of cracks and natural deformation caused by weather conditions and forced load. Wood rot is prevented by special antiseptic treatment. The air in timber buildings is always fresh, since only environmentally friendly adhesives are used according to the technology.

The strength and stability of a house made of laminated veneer lumber is guaranteed by high-precision profiling of the material.

Heat saving is ensured due to the peculiarities of the shape and tight fit of the timber. There are no even microscopic cracks in the walls, external or internal, and residents are not afraid of either frost or wind.

Well-dried, specially glued wood is a lightweight material, which eliminates the need for a massive buried foundation.

They build buildings from laminated veneer lumber quickly, which does not affect the quality. A relatively small one-story house, up to 150 m2, is erected in about a month, and the same amount is needed for interior design and roofing. Thus, the customer can move into a brand new house that smells of fresh forest already this season.
The secret is that the timber is cut in the workshop in accordance with design calculations. On site, the parts are folded, fastened, and a roof is erected. The finished house practically does not shrink, which allows you to begin laying out heat, water, and electrical communications immediately after the installation of the walls is completed, simultaneously with the arrangement of the attic space and roof.

Glued laminated timber is a beneficial material for architects and civil engineers. The treated surface of the timber does not require additional finishing, reducing the cost of time, materials and finances. Natural beauty, manufacturability, high load-bearing capacity of laminated wood accurately embodies the most daring engineering and architectural ideas.

What's wrong or a little about the shortcomings

It would be wrong to mislead customers and dreamers by insisting on the absolute infallibility of the wonderful laminated veneer lumber. The trouble is that a house built entirely from laminated veneer lumber is short-lived due to the natural nature of the building material and its reaction to external and internal changes in temperature and humidity. The larger the structure, the more pronounced this drawback is.
Shrinkage, although minimal, is still present; this fact should be taken into account during construction.

The issue of environmental friendliness of the material also arises, because laminated veneer lumber is assembled from several lamellas, glued and pressed. It is believed that the adhesives used are non-toxic and do not interfere with the positive properties of wood, but it is useful to inquire about the characteristics of the adhesives, especially if future residents are prone to allergies.

Another disadvantage is the high cost of laminated veneer lumber. This drawback does not scare everyone; moreover, the short time frame and optimal construction technology reduce it to a minimum. The cost of construction depends on many factors and ranges on average from 450 to 800 USD. per m2.

You can avoid many unpleasant moments, which are caused by the natural behavior of wood in various conditions, by erecting small one-story houses or combining wood with other reliable building materials.

When planning the construction of a wooden house, the developer should be extremely careful when choosing a contractor. The company with which the construction contract is concluded must reasonably guarantee the highest quality of building materials, the provision of appropriate permits and certificates, compliance with deadlines and stages of construction, strict adherence to technology during the entire period of preparation and construction of the house.

Manufacturing technology of high-quality laminated timber

Talking about the technology of manufacturing laminated veneer lumber (or structural wall timber) may seem boring. But this is only at first glance. Timber is wood, perfectly flat, firmly glued, and under no circumstances losing its positive properties, the basis of the future ideal home.

High-quality laminated veneer lumber that fully meets all the stated characteristics is obtained only with the strictest adherence to production technology.
As wood dries, it shrinks in size, changing its geometry. Improperly dried workpieces during building operation can cause cracks to appear. Even a small, barely noticeable gap quickly increases, which negates all efforts to create a cozy, warm and reliable home.

To obtain the correct structural wall timber, you should:

cut the forest into blanks;
dry them to a moisture content of about 12%;
calibrate;
inspect and reject defects;
splice the finished lamellas onto a mini-tenon;
calibrate boards;
glue the boards flat;
planing workpieces;
cover them with protective compounds;
trim;
cut corner joints;
drill technological holes;
re-coat with a protective compound.

This is a simple listing of the operations performed on the shop floor. In practice, each process is repeatedly checked against documentation and calculations are checked. Craftsmen say that in fact, the production of laminated veneer lumber begins on a forest plot, because it is necessary to select wood of the required size, with certain qualities, cut it down and carefully transport the logs to the production site. Knowing the conditions in which the tree grew, you can accurately predict its behavior in blanks and products.

The preparation of building material takes place in accordance with the requirements of the project. A large amount of timber should not be produced in advance; it cannot wait long for installation - each lamella inside the timber dries in its own way, the timber “leads” and distorts the internal resistance of the wood. Errors in calculating wood compression are also dangerous. The result is that the building material becomes unsuitable even at the preparation stage.

Why are wooden houses called “Finnish”

Several decades ago, the words “Finnish house” entered our everyday life, which meant a prestigious, quite expensive, but very comfortable dwelling made of wood. The term has survived to this day, although it is not at all necessary for Finns to build a house from materials brought from Finland.

A real “Finnish house” is a unique phenomenon in each case. There are no identical, let alone typical, Finnish houses. All projects are developed on an individual order; construction begins only if the construction of a home is guaranteed from Honka, that is, of the highest quality. These houses are interesting because they are designed for climatic conditions similar to ours - winter frosts, spring and autumn humidity, sometimes hot summers.

The buildings are predominantly one or one and a half stories high, which allows one to avoid the possible vagaries of the material; the layout is thought out to the smallest detail and takes into account the needs and desires of everyone living in the house. There are no utility rooms - storerooms, basements, attics, as they are sources of additional moisture, undesirable for a log house. Utility rooms and a garage are built separately from the residential building.

As a rule, houses have wide terraces and balconies resting on them, which increases comfort and allows the family to get together in their free time in the air, but in a place protected from rain and snow.

They build, or rather assemble, such houses according to the principle of a designer, when the details are standardized and the result meets expectations. All parts and components are delivered to the construction site fully prepared, cut according to drawings, processed, no additional adjustments are provided on site. The installers can only, following the instructions, assemble a nice house with a flat gable roof on which snow does not linger.
The hallmark of Finnish houses is the emphasized neatness of the architecture - the corners are cut “into the paw”, the same height of the base is at least 40 cm, cornices protrude by half a meter. Exposed beams create a recognizable interior.

What is the difference between our and Finnish laminated timber?

The technology for manufacturing the main building material - laminated veneer lumber - was invented and developed by the Finns, hence the name. High-precision computer-controlled equipment allows the process of manufacturing puff building materials to be reduced to purely technical operations and guarantees quality.

In principle, Russian timber is the same as Finnish timber, the difference may be the source material and differences in the manufacturing process.

The Finns harvest pine and spruce logs that are identical in all respects for cutting boards - lamellas - only in winter, when the wood is least wet. Drying of the source material is carried out in special chambers, after which it is transferred for cutting. The square-section timber consists of at least three glued and tightly pressed lamellas. The blanks, carefully treated with antiseptic, fire-fighting and other protective compounds, are processed on carpentry machines - the so-called “thermal lock” is prepared - grooves, tenons for further assembly.

The secret of Finnish professionals is the technology of gluing layers of future timber, which prevents the possibility of warping, twisting or cracking of the wood. Of course, the technology for producing high-quality material soon became the property of Russian craftsmen. Nowadays, many domestic companies have reached the highest level of quality of puff building materials and are leaders in the market. It should be noted that domestic material is cheaper than its imported counterpart, which determines the choice.

Construction of country houses from laminated veneer lumber

Country house made of laminated veneer lumber

It is not advisable to build spacious two- to three-story mansions entirely from laminated veneer lumber, given the nature of the building material; this has been proven by practice. But country house construction is a priority. Small country houses built in accordance with the relevant rules and technology serve their owners for many years, maintaining a beautiful appearance and providing comfort.

Such buildings are quite accessible not only to wealthy, but also to middle-income citizens, since they are built from domestic materials. The relative high cost of laminated veneer lumber is offset by time savings, ease of installation, and the absence of the need for finishing.

In conclusion, it should be said that houses made of laminated veneer lumber, made from carefully selected raw materials, built in strict accordance with the requirements of technology are truly ideal for humans. Beauty, comfort, strength, reliability, coziness - these are the distinctive features of nice houses made of laminated veneer lumber.

The post Dream house made of laminated veneer lumber: construction nuances and manufacturing technology first appeared on StroyPomoschnik.

Modern technologies have even penetrated into such a seemingly unshakable area as the construction of wooden houses. Many now prefer, instead of stone and brick buildings, which until recently were in first place in popularity, to build a house from laminated veneer lumber and its analogues.

Before making the right choice, every owner of the future house in which he will live must study what is good about this or that material. Why exactly laminated veneer lumber, and not, for example, solid, or ordinary logs? The advantages are as follows:

A house made from laminated veneer lumber is built much faster than from any other material.
Due to the fact that there is virtually no shrinkage, finishing work and even moving in can be carried out almost immediately after the completion of construction work.
The unique connection method does not require additional insulation and sealing work; moreover, such houses are very economical in terms of heating costs.
The technology used to produce laminated timber provides several degrees of protection against possible troubles. It includes treating the material with an antiseptic, antibacterial agents and fire retardants. This triple protection significantly reduces the risk of fire, damage by fungi and insects, and also ensures the environmental friendliness of the structure.
Does not require any special work on external finishing, only periodic treatment with protective varnishes.
Durability.
Simplicity and compatibility provide the opportunity to implement projects of any degree of complexity.

There is hardly any other material that has so many positive properties

Flaws

It would be unfair to omit this section. However, it will be much shorter.

The first thing you have to think about at the design stage is the price. Glued laminated timber is somewhat more expensive than profiled timber.
The second is the need for periodic processing wooden structures, especially from the outside, in order to extend their service life.

Let's finish here. The remaining shortcomings are not so significant and can be easily solved as they arise to focus attention on them.

How to build a house from laminated timber in 9 steps

During construction, there is a risk of making mistakes, which will then be very difficult, and sometimes impossible, to correct. To avoid this, you need to think through everything down to the smallest detail, starting with documentation and approval in the necessary authorities, and ending with a housewarming party, cheerful and crowded. All this can be done in just 9 steps - the path is not too long, but requires attention and hard work, especially if you decide to build a house from laminated veneer lumber with your own hands.

Step 1: Project

The initial stage, which is one of the most important. It will not only help you do everything correctly and efficiently during the construction process, but also bypass all bureaucratic obstacles. It is much easier to obtain almost all permits at the design level than after the building has already been erected.

However, not everyone has the talent of an architect. What to do in this case? There are four options at once:

The Internet is full of all kinds of projects for all occasions and you can download them absolutely free. But there are several pitfalls here. And the biggest of them are the discrepancy between the foundation and the type of soil on your site and the difficulty of connecting communications.
The second method smoothly follows from the first method. Download the project from the Internet, and then modify it in accordance with your conditions.
The best option is to order the development of a project for a house made of laminated veneer lumber from a construction company, which will then supply you with building materials. Their specialists will offer you a variety of ready-made projects to choose from, which they will be happy to make changes to according to your wishes. This is somewhat more expensive, but you will be sure that all the nuances are taken into account.
If you have any special wishes for your future home, you can order an individual project developed by specialists from the very beginning, but this will cost about 30% of the entire construction estimate.

The option of involving a construction company is also good because their legal services will help resolve all issues with the BTI, administration and other bureaucrats.

Step 2: Foundation

Depending on the type of soil on the site where you are going to build your house, and on the design of the house itself, taking into account its area, the location of the rooms and how many floors it will have, a certain type of foundation is poured. We also take into account the fact that laminated veneer lumber is much lighter than some other types of building materials, which means that the foundation is not so powerful, which leads to significant savings.

Another positive factor: for the construction of a brick or cinder block house, the foundation is usually poured in the fall, allowed to settle until spring, and only six months later they begin to build the house itself. It is possible and even necessary to work with laminated timber in winter.

Step 3: First crown

Laying the first crown is one of the most crucial moments in building a house. Here are step-by-step instructions on how to do this correctly:

The beam for the first crown should be made of coniferous wood.
It is recommended to apply at least three layers of antiseptic to it.
The first crown is laid only on a perfectly level foundation.
It is necessary to lay waterproofing material under the timber itself.
The timber is secured with anchors, pins or metal crutches.

Step 4: Subfloor Joists

At the same time as the first crown, the subfloor logs are installed. If the area of the house is not very large, the logs are fixed to the timber using metal corners. If the area under the joists is large, additional supports should be formed.

Step 5: Assembling the Box

If the construction company from which you first ordered the project, and then a set of laminated veneer lumber, immediately sawn and shaped to the required dimensions, fulfilled all the conditions and wishes, making the box yourself does not present any difficulties. Each element is already numbered in accordance with its place in the log house, all that remains is to carefully place it in place, not forgetting to lay the thermal insulation material, if it is provided for by the configuration of the connecting profile.

If you bought an ordinary laminated veneer lumber and are going to do all the work yourself, you will have to choose methods of longitudinal joints (in half a tree, in a paw, on a main tenon), corner joints (on a main tenon, on a tenon, in a frying pan, in a bowl). Learn how to cut connecting grooves and think about how to fasten the timber together (with self-tapping screws, dowels).

Installation of timber floors also requires special calculations. If there is an ordinary attic or unused attic above the residential floor, the load on them will be insignificant and the beams can be fastened to a metal support.

If the house is two-story, the floor beams should be installed directly into the timber. The distance from the beams to the heating pipe is also taken into account.

Step 6: Roof

Due to the fact that shrinkage in a house made of laminated veneer lumber is minimal and practically does not play any negative role, rafters can begin to be installed almost immediately after the construction of the box. And then cover the roof with the selected roofing material.

Step 7: Individual Elements

Windows and doors. This is another positive property of houses made of laminated veneer lumber. A window frame is not required for installing door and window openings. The casing has more of an aesthetic than a functional meaning.

Final installation and connection of communications. This includes sewerage, water supply and heating.

Installation of vertical supports, if provided for by the project. Again, due to the slight shrinkage, no difficulties arise here either, but experts still advise using sliding fasteners for them, with the help of which you can subsequently adjust the height of the supports.

Step 8: Interior finishing

Interior decoration is absolutely optional. Glued laminated timber itself looks quite aesthetically pleasing, but no one forbids sticking wallpaper or attaching drywall to it. There are only two factors to consider. Interior finishing is a more precise matter, and therefore even such a small shrinkage as in a house made of laminated veneer lumber can have an effect. This is the first. Second: you should wait at least 5-6 months before applying plaster or gluing decorative tiles.

Step 9: Exterior Finishing

If a house made of laminated veneer lumber does not need interior decoration, then decorating it from the outside is somehow strange. It already looks stylish, rich and presentable. However, some scope of work is still necessary and it comes down not only to treatment with special means that extend the service life. So:

Caulk the seams (optional).
Sealing cracks (only if they appear)
Insulation of door and window openings (an urgent need).

As you can see, the amount of work depends primarily on how well you built your house.

What is the price

It is impossible to name a specific figure in response to this question - there are too many factors that influence it. But it is quite possible to list the factors themselves:

Dimensions of the building.
Foundation type.
Complexity of the project.
Section of timber.
Number of floors.
The presence of a balcony, veranda, attic.
Roof type and configuration.
Number and complexity of communications.
Cost of documents.
Transport and delivery costs.
The price of the material itself.

As you noticed, this list does not include the costs of construction work and payment to the construction crew. This is because there are more and more self-built houses from laminated veneer lumber. We are confident that you can do it on your own if you have the desire, hard work and the required amount of time.

LLC "GK Priozersky timber processing plant" has been operating in the timber market since 1999 and is the largest full-cycle timber processing enterprise in the North-West region.

The main activity of our plant is the production of houses from profiled laminated timber and the sale of related lumber. Manufacturing of houses is possible both according to standard and individual projects. The development of the design documentation section (wooden structures) is carried out in the office in St. Petersburg. Finished houses are delivered to different regions of the Russian Federation.

Construction is also one of the main activities of our company. It is possible to assemble a house kit using the “Warm Contour” option - it includes a foundation, wall assembly, installation of a roof with insulation, installation of communications, heated floors, installation of doors, double-glazed windows, etc. The end result is a house completely ready for final interior finishing. The price of our houses (the house kits themselves) depends on the choice of timber section, as it is calculated by the volume of lumber in cubic meters.

You can build a house from laminated veneer lumber in a few months. You can discuss the cost and buy a house kit throughout the year. Sales are carried out at the company's head office at the address: St. Petersburg, emb. Martynova, house 6.

When building a house for our family, we try to choose high-quality materials for it. Preference is given to natural products, but at the same time, produced taking into account modern requirements for durability, reliability, and external design. The technology for the production of laminated veneer lumber, which appeared relatively recently, has renewed interest in the construction of wooden houses, which many previously abandoned in favor of brick, stone or block ones.

Of course, all of the materials listed above have their own advantages and are ideal for building durable, beautiful and modern houses. But, still, they cannot compare with wood in terms of the level of comfort and coziness that you experience while in a wooden structure.

Production of laminated veneer lumber

Prerequisites for the emergence of technology

First, let's figure out how and why the technology of laminated veneer lumber appeared in the first place, how this material differs from a similar product simply cut from solid wood.

Everyone is well aware of the property of wood to dry out and become deformed during use. As a result of this process, houses built from it experience serious shrinkage, sometimes reaching 15-18% of the original height. Shrinkage, in turn, leads to deformation of the entire structure and its structural elements, for example, window and door blocks.

In addition, over time, external defects appear on the wood - cracks, fallen knots, blue discoloration, which requires protective and preventive measures.

Production stages

It should be noted that the production of laminated veneer lumber requires complex, high-quality equipment - it is simply impossible to create it yourself in artisanal conditions.

The process consists of several technological stages:

Wood sorting. At this stage, a careful selection of raw materials occurs: it is divided by breed, grade, size and other important parameters.

For reference. Sorting of raw materials is regulated by regulatory documents.
In particular, GOST 8486-86.

Drying. The wood is placed in special drying chambers equipped with modern equipment. In them, under continuous control, lumber is dried to specified humidity values. (see also article)

Manufacturing of blanks. This process consists of two stages. First, the dried wood is sent to machines, which carefully cut out all defects and damaged areas from it. After which it is cut into lamellas, which are spliced along the length.

Gluing . The blanks, lubricated with environmentally friendly glue, are connected and placed under a powerful press. The glue under pressure penetrates into all the pores of the wood, firmly fastening the lamellas to each other. The number of lamellas in a beam depends on its design thickness.

Note. Most often, laminated veneer lumber consists entirely of one type of wood.
But there are varieties with one or two external slats made of more expensive wood.
Accordingly, their price will also be higher.

Profiling. At this stage, the timber blanks are cut to length and planed, and then sent to special machines that cut out locking joints in the body of the blank - grooves precisely adjusted to size. The technology of assembling a log house from laminated veneer lumber, thanks to the presence of these ideally matching grooves and tenons, makes it possible to do without the use of sealing materials in the seams between the crowns.

Package . The finished timber is packaged before being sent to a warehouse or distribution network to prevent mechanical damage and surface contamination.

Some manufacturers, in addition to the timber itself, produce parts made in a similar way that make it easier to join walls in corners, install ceilings, and install door and window blocks.

Advantages of laminated veneer lumber

In addition to those listed above, laminated veneer lumber has other advantages that make it very popular in the construction market.

Well-dried and cut into lamellas, wood, which is the raw material for production, perfectly absorbs protective agents that protect it from rotting and prevent fire.
The technology for the production of laminated veneer lumber and profiled timber makes it possible to create products with precisely calibrated geometric parameters and ensure their tight connection to each other without gaps and cracks, which has a beneficial effect on the appearance and heat retention in houses, and helps to save on heating costs.