Bath polishing: step-by-step instructions. Grinding a rounded log with your own hands Polishing a hand-cut house

Sanding – compulsory work after the construction of the log house. Its main purpose is to level wood material, remove all roughness, mold, rot spots and other defects from it. This work must also be carried out before painting, varnishing or treating the wall with any other finishing materials.

A sanded wall ensures good adhesion of paint to the surface, and the result will look much more aesthetically pleasing. How to polish logs?

Selection of tools for processing logs

Choosing a tool for grinding a log frame is not difficult, since there are dozens of different brands on sale today grinding machines from domestic and foreign manufacturers.

• To completely sand a log house, you need to purchase the following set of equipment: If we are talking about a log house made of timber, the most convenient solution would be a belt sander. It will allow you to quickly process, flat surfaces modern models
• additionally equipped with a bag in which dust and flying small sawdust are collected. It is important that the machine is not overly heavy, otherwise it will be awkward to work with.

If you have to process a log house, you will have to work with semicircular surfaces. The most convenient tool for this will be an angle grinder - an angle grinder, which is more commonly called an angle grinder. In this case, special attachments are put on it for polishing the log house - these are discs coated with sandpaper placed in the form of petals.

• Enough power - 850 W, no stronger tools required. The device must be light and ergonomic, otherwise after several hours of work your hands will become very tired.

You will also need high-grade sandpaper, and it is better to purchase a large amount. Any equipment will not help complete the job; many areas will have to be processed only by hand. These are end joints and various hard-to-reach places that a grinding machine cannot reach. What is the best way to polish a log house? When choosing a power tool, it is better to pay attention to the product widely famous brands : it's DeWalt, Bosch, that's enough reliable tool

You should not skimp when choosing, as a cheap Chinese grinding machine can simply fail after an hour of hard work. A properly selected tool will allow you to quickly get the job done, and there will be no problems or unexpected breakdowns.

Technology for polishing a log frame using a grinder

A grinder for polishing a log frame is the most handy tool having enough high performance, but all the work will take many hours. It is important to remember that sanded logs must be painted or otherwise treated as quickly as possible, otherwise the wood will quickly darken and the likelihood of fungus will increase.

Sanding begins only after the wood is completely dry. It is practically useless to sand a wet log, since you will not get a smooth surface.

How to grind a log frame with a grinder? To work, you need to prepare in advance nozzles with grains of different sizes: when initial processing The logs are sanded with coarse-grain sandpaper (40); later, you can move on to finer sanding by choosing sandpaper with finer grains.

The abrasive material wears out very quickly and becomes clogged with dust, so it will have to be replaced periodically. Some important rules that will help you cope with grinding more effectively:

• Before starting work, you should take care of personal protective equipment: when processing wood, dust and small sawdust will fly in all directions, so you will need safety glasses and a respirator mask. Hands must be protected by a sleeve, and work gloves will also be required.
• If you have to big job, it is better to divide it into several parts. Otherwise, the logs of the log house will have time to darken even before the work is completed, after which they will need to be sanded again. It is better to treat one area and then immediately cover the wood with a protective compound.

This is especially important if the work is not carried out professionally, as it will take more time, and it is worth taking care of the timely protection of the material.

• The work is carried out in several stages: initially, you need to treat the roughest places with a nozzle with coarse sandpaper: the remaining bark is removed, all irregularities are removed. After this, you can proceed to grouting with sandpaper, and the final part of the work is done manually.

Particular attention should be paid to the grooves. To grind them, you can use a special flat attachment on an angle grinder, but such work requires special skills, and it is better for beginners to do it manually.

If the work is being done for the first time, the master must handle the grinder very carefully. High rotation speed requires precise movements, otherwise the sanding will be uneven. If you press too hard on the wood, a noticeable depression will immediately appear in it.

Further processing of the log house

When choosing what to polish a log house with, you must immediately prepare the material for further processing of the logs. It includes the mandatory application of a layer of antiseptic - a substance that prevents putrefactive processes. The antiseptic can be a priming and tinting agent, and the wood can also be treated with bleaches to give it a pleasant tone.

Wood must also be treated with fire retardants - substances that prevent fire. For a house made of wood this is most important factor security.

A carefully polished and processed log house will look very beautiful, and thanks to special processing it will be reliably protected from various adverse effects. Skillful handling of tools and compliance with safety precautions will allow you to quickly complete the job without force majeure, and the result will be quite worthy.

To maintain an attractive appearance log house for a long time, its external treatment is carried out, which includes grinding and coating with antiseptic compounds that prevent rotting and increase fire resistance wooden structure. If the logs are left without sanding, the remaining bark will darken over time and lead to rot and deterioration in appearance. How to polish a log frame? What are the basic rules for processing it? Which antiseptic to choose? We will answer these questions in this article.

The appearance of the log house depends on external polishing and coating with antiseptic compounds.

How to choose the right tool?

At first glance, it seems that the process is simple and doing everything with your own hands will not be difficult. We'll have to dissuade you. Study the information below and try to objectively assess your strengths. Do you have sufficient stock? necessary tools, time, perseverance, and skills? Or maybe still the best option Will this work be entrusted to professionals?

As you probably know, grinding a log frame consists of several stages. Belt sanders do an excellent job. Today in stores they are presented in a fairly wide assortment, but not every one is equally well suited for this job.
In order for the process to go faster, the tool should not be too heavy and powerful enough. It would be good if the model had a dust collection bag.

Belt sanders do an excellent job of sanding timber baths and flat surfaces.

Sanding with a grinder also helps get rid of fungi and mold.

But this tool is not suitable for processing semicircular logs. It is better to use a grinder with special sanding discs with sandpaper. It should not be very heavy, otherwise after the first hours of work your hands will literally fall off. A power tool of 850 W will be quite enough. It is better to choose an angle grinder from famous manufacturers(Makita, Bosh, domestic Intersko). Buying a cheap Chinese instrument is like playing the lottery. It can last for a long time, or it can break after 2 days.

Working with an angle grinder requires certain skills. In inept hands, an angle grinder will leave deep furrows and dark stripes on the body of the log. There are 4 stages of grinding with an angle grinder, and for each you need to use a sanding disc with the appropriate grain. At the first rough stage, grinding work is carried out using sandpaper with large fraction No. 40. The sanding sheet effectively and quickly removes the top layers of darkened wood. The forty is also suitable for grinding the ends of logs.

Under no circumstances should you sand the house during construction or immediately after; it takes about 2 years for it to shrink.

At the end of this work, the sandpaper should be replaced with a sheet with a finer abrasive - No. 80 or No. 100. It removes the initially raised pile on the log and brings the surface to a state of perfect smoothness. Final (fine grinding) - from 150 to 180, finishing - grains from 220 to 240. B hard to reach places you can use a chisel. If you carefully go through all 4 stages, your house can be called a real masterpiece of architecture, and the walls will not need additional decoration. Coarser grinding involves going through only the first 2 manipulations.

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Purchase of discs for grinding logs

Domestic discs are several times cheaper than imported ones, but the quality is almost the same.

If you do decide to sand the frame yourself, one of the problems you will have to face is the number of sanding discs. The fact is that a lot of them are required. For 1 m² of wall it takes from 1 to 3 discs. In order to preliminarily calculate the area, volume of work and financial costs, you need to use the height coefficient used when calculating by professional teams. If the walls are not smooth, but have curved crowns, measurements are taken using a tape measure, the tape of which should go around all the curves. In the end, it turns out that in a house with a ceiling height of 2.6 m, the actual wall height is about 3 m.

And again about disks. In a construction supermarket, purchasing such a number of discs (mostly imported ones are presented there) will significantly hit your pocket. The best solution would be to pay attention to domestic manufacturer. For example, discs from the Luga Abrasive Plant are several times cheaper, but in terms of quality characteristics they are not much inferior to imported products. Discs domestic production Not available for sale at every network giant. Try contacting construction companies, they work directly with the manufacturer. Maybe you will be able to purchase small wholesale items from them at a fairly reasonable cost.

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It is better to entrust all home sanding work to specialists.

1. The frame should be sanded only after complete drying. If you sand the logs immediately after assembly, the wet wood will scuff, and a beautiful smooth surface will remain a dream.
2. Work should begin with upper floors to rid ready-made premises of dust. By the way, there will be a lot of dust. You can clean the walls from it using ordinary brooms or a vacuum cleaner (preferably a technical one).
3. Sanding of the frame should be performed before installing windows, ceilings and floors. This is due to the fact that such areas require the greatest painstakingness and accuracy. But the roof of the log house must be installed.
4. Grinding work is carried out in parts. The surface of the wall is divided into grips, which are sanded one by one. Also, the grinding sequence must be observed in relation to the premises. The sanded surface must be coated with the compound no later than 3 days after sanding. If you delay, the log will darken and all sanding work will be in vain.
5. The most inaccessible places in a log house are the places where the logs join in the corners. Work in these places should be carried out manually, without active deepening, removing upper layer wood. A power tool will be useless here, but a chisel with a blade width of 20 mm will work well.
6. When working with an angle grinder, before starting grinding work, new discs should be slightly ground down on auxiliary sections of the log (usually they are interior openings, which in the future will be covered with boxes). As a result, the largest grains will fly off, and the disk will not spark and spoil the log.
7. When grinding, it is better to move the tools not with your hands, but with your shoulder and forearm joints; this will help achieve smooth movements, and the surface will be smooth and without waves.

After completing the construction of the log house, a grinding process follows, which will help give the wood an aesthetic appearance and make it stronger. We will discuss the technology of sanding a log house with your own hands and what to polish a log house below.

Types of log house

The construction of a log house opens up many advantages for its owner, such as:

1. Eco-friendly home - wood is a clean and harmless material that does not cause allergies and is safe for both adults and children.

2. Wood regulates indoor humidity - thanks to natural properties moisture absorption, wooden frame is able to absorb moisture when there is an excessive amount of it, and release it if necessary.

3. The ability of the log house to breathe provides the room with constant natural ventilation, and at the same time does not release heat. This has a positive effect on the coziness and comfort of staying in such a room.

4. Wood has low thermal conductivity - so the house heats up very quickly.

5. The log house is resistant to deformation, its walls are light and do not require the construction of an expensive massive foundation.

6. In addition, wood is an excellent sound insulator; it has high frost resistance and, in comparison with the construction of brick or concrete house, is cheaper.

Before you begin to study the technology of grinding logs, you should familiarize yourself with its main varieties. As you know, a log house is called wooden building, made from logs pre-treated special technology. For and production choose coniferous or hardwoods trees. Basic requirements for the material:

• lack of moisture;
• diameter from eighteen to forty centimeters;
• absence of rot, dark spots, bugs, etc.

During the construction of a log house, logs are stacked one on top of the other, one row of logs is called a crown. The first row of logs has the most large diameter, since they are subject to a large load. Down side Each log has grooves, which are:

• semicircular,
• triangular.

To ensure that the walls of the log house are stable, insert tenons are used, which are located alternately on each of the logs. Due to the fact that the wood for the log house is dry and is strongly compacted during the installation process, it settles in the first few years of operation of the log house. This factor must be taken into account when determining the height of the building.

The grinding process depends on the angle of the log house, so we suggest that you familiarize yourself with the main types of log houses in relation to the type of corner of the building.

The angle is the connection of two logs with each other, the strength and integrity of the entire log house depends on it. In addition, the corners significantly affect the thermal insulation of the room, since improperly equipped corners of the log house will make the room cold and reduce the duration of its operation.

Among the varieties of log corners, there are two main types:

• with a remainder,
• with no remainder.

The first option involves the protrusion of the logs by twenty to thirty centimeters, beyond the building. These corners are distinguished by their practicality, ease of manufacture, low thermal conductivity and lack of wind. One of the significant disadvantages of this type of corner is the increase in the amount of wood required for the construction of a log house. Although, if you compare these costs with the costs of insulating corners without any remainder, they will be almost the same.

Corners without residues involve securing the frame using wooden locks cut at the end sections of the logs. In such a log house, the ends do not protrude beyond the building. The only advantage of this type of corners is their more attractive appearance. But the disadvantages are that the corners have more, since a small space is formed in the connecting parts through which the wind enters the room, so they require insulation. In addition, the work of constructing such a log house takes longer and requires large investments, since in order to build locks at the end of the logs, you need to attract specialists and pay for their work.

General concept and reasons for sanding a log frame

A log house consists of logs, but during use, due to the presence of bark, they begin to darken and lose their appearance. This happens because moisture is absorbed into the unsanded areas and rotting occurs in them.

To increase the service life of the log house, its external treatment is carried out, which includes the process of sanding and coating the wood with special compounds that make it waterproof, fireproof and antiseptic.

The process of polishing a log frame is quite labor-intensive, and requires from its performer not only special skills, but also certain tools and large quantity time. If you don’t have time, then it’s better to entrust this issue to professionals who will carry out the polishing quickly and efficiently, while the log house will serve its owner for many decades.

Consequences of grinding:

• protection of wood from the formation of fungus and mold;
• attractive appearance;
• After sanding, a clear wood texture can be seen.

In addition, we suggest considering the advantages of polishing a log house:

1. Mechanical restoration wood allows you to get rid of roughness and cracks, and also helps to improve the aesthetic properties of wood.

2. Wood that has been sanded has high adhesion to paints and varnishes.

3. Sanding the frame is a preparatory stage that allows for further finishing of the entire building.

4. After sanding, the wood has a beautiful texture, which is the main decoration of log houses.

5. Sanding prevents premature aging wood.

If you have free time and want to do the grinding yourself, first of all you need to decide on a tool that will be useful in your work. To make work easy and convenient, choose a tool that is not too heavy, but still has good power.

An excellent solution would be a belt sander, which will help you do this job efficiently. To facilitate the grinding process, such tools have built-in bags that collect dust and sawdust during grinding, so additional cleaning after the job is not required.

If the log house is made of logs having a semicircular shape, then draw machine can't handle this kind of work. Then a grinder comes to the rescue, which has special grinding attachments. Use a special disc covered with sandpaper. For hard to reach places great solution will use a chisel.

Pay attention to the weight of the grinder; if it is too heavy, it will be inconvenient and difficult to work with. Recommended power from 600 to 900 W. Choose tools from trusted manufacturers and ask for a warranty on the product.

Please note that sanding work on the log house begins after the wood is completely dry. If you start work immediately after constructing the log house, then wet wood will not make the surface even and smooth.

Stock up on a certain number of attachments that have different grain sizes, since certain areas of the log house require individual grinding. In addition, when carrying out primary grinding, it is better to use a nozzle with large grains (forty), and when finishing grinding, an nozzle with a grain size of eighty or one hundred is quite sufficient.

The grinding process consists of the following stages:

• rough peeling;
• medium processing: smoothing the surface and removing irregularities;
• fine processing;
• sanding before applying varnish or paint.

During the process of sanding a log house, you will need to change attachments very often, because resin and wood dust wears them out. To clear the nozzle of any accumulated wood parts, use a steel brush, but first treat it with white alcohol. Please note that such an attachment will work worse and will wear out faster.

The speed of the grinding process is affected by:

• tool skills;
• type of tree;
• log area;
• presence of complex elements;
• tool power;
• the amount of resin in the tree.

The average speed of grinding work per linear meter is thirty centimeter timber is two minutes.

Do not forget about safety precautions; during the work process, there is dust, resin and sawdust in the air, which gets on the mucous membranes of the mouth, nose and eyes, so when grinding timber, it is recommended to wear a mask and protective clothing.

To work you will need:

• angle grinder or grinder;
• disk or belt type parquet sanding machine;
• grinding attachments;
• vacuum cleaner;
• respirator;
• points.

Start the grinding process after a certain time has passed, after the construction of the log house. The building should exhibit minimal shrinkage. An angle grinder will help to process large surfaces, and hand grinding will handle hard-to-reach surfaces.

To complete the complete grinding of the log house, it interior walls and facade areas, you will need an eccentric sander, a small grinder and a 2 cm chisel.

1. If the walls are too large, it is necessary to divide them into certain zones and sand them in parts. After completing the work, you should immediately cover the surface with special solutions. If one area is sanded in one day and not covered with paint, and the second after a few days, then the work will be done in vain. After sanding, after 24 hours, the log house begins to darken and requires further sanding. According to the recommendations of experts, painting of a log house should be carried out a maximum of 36-48 hours after sanding.

2. The sanding process involves several steps, the first of which is to use a coarse type of abrasive paper. With its help, the rough part of the bark is removed, while the pile of the tree remains unharmed. To get rid of lint areas, it is necessary to carry out a second sanding process, which involves working with fine abrasive paper.

3. If you have no experience in grinding, it is not recommended to use a grinder. This tool has a high rotation speed, and it is difficult for a beginner to carry out uniform grinding with its help. If you apply a little force and press the grinder on the beam, grooves will appear on it, which will spoil the appearance of the log house. Therefore, in this case, the grinder is used only when processing groove and end sections.

4. Before grinding the grooves of the log house, it is necessary to equip the angle grinder with a special attachment flat type. There are two options for such attachments:

• plastic,
• rubber.

It is preferable to choose the first option, since rubber nozzles are not practical, quickly deteriorate and require constant replacement. The diameter of the nozzle should be slightly smaller than the diameter of the replaceable sanding sheets. If the nozzle gets into the groove, the tool will jam and may accidentally be pulled out of your hands; if the nozzle is smaller, then it will not hit the person doing the grinding, otherwise the consequences will be dire.

In order to sand logs, you will need a grinding machine with a grinding wheel, fine sandpaper, a grinder with a wheel and grout. This process is longer and requires great experience working with grinding tools.

Before you start sanding logs, you must wait at least 8-9 days after the construction of the log house, if the weather is dry and warm. In humid weather, the waiting time increases.

The sanding process involves sanding rough areas using a sander or grinder. Then, all areas are processed using grout and sandpaper. This process continues until the timber becomes perfectly even and smooth. The final stage of sanding is recommended to be done manually, especially at log joints and hard-to-reach areas. The most important condition for proper sanding is quickly covering the log house with finishing materials that will reduce the risk of mold and mildew on the wood.

Processing of the log house after grinding

The process of external processing of a log house can extend its service life several times. This procedure consists of sanding and painting using various compounds.

There are a large number of products that are used to process a log house after grinding. There are both domestic and foreign manufacturers. But not all of these products are suitable for treating residential premises, so before purchasing, carefully read the instructions and technical features solution.

Among the mandatory means for covering a log house after sanding are:

• antiseptics that prevent the development of mold and mildew;
• glazing compositions that make the appearance of the walls more attractive;
• flame retardants - solutions that increase resistance to fire.

The main function of log processing is protective. In addition, with the help of modern developments, the natural texture of the wood is emphasized and it is tinted. It is possible to use ordinary wood paint, but in this case, the wood texture will not be visible.

The first layer that is applied during the processing of a log house is antiseptic, then bleaching is carried out, and after that the application of fireproof impregnations.

It is better to paint a log house with a brush or spray. If the house consists of logs, then it is preferable to choose the second option.

Before applying the main layers, pay attention to the evenness and smoothness of the sanding and the absence of caulking. If available, use special sealants that cover the caulks and prevent their interaction with the environment.

Pay attention to the end areas; to treat them, use acrylic moisture-resistant solutions or liquid glass. But keep in mind that the second option is less safe for residential premises. Apply any of the solutions in two layers, and the first must be completely dry before applying the second.

The walls are treated immediately after grinding, and at above-zero air temperatures. The first layer is glaze. The composition is applied using a brush or spray gun.

The main rule is the use of durable wall treatments high quality products from leading manufacturers. If you save on materials, the first thing that will suffer is the log house, since wood is a rather vulnerable material that requires careful care.

Sanding a log frame video:

Unsanded logs, as a rule, have remnants of bark, and over time they darken under the influence of natural conditions, which leads to rot and loss of appearance.

In order for the log house to serve for a long time and have a beautiful appearance, it is done external treatment, which includes grinding and coating with special compounds that prevent rotting and increase fire resistance wooden structure.

Let's find out how to polish log houses made of rounded logs or timber, and also touch on the issue of its antiseptic treatment and impregnation with fire retardants.

Cost of polishing a log frame

Sanding a log frame is quite a labor-intensive job that requires some skills, special tool and enough free time to complete it.

If you do not have all this, then it is better to turn to professionals who can perform all the necessary operations in the shortest possible time. But keep in mind that their services will not be so cheap.

On average, the cost of sanding a square meter of a log house wall per pass ranges from 300 to 400 rubles. So you can calculate approximately how much the labor of hired workers will cost you.

If you have the time and desire to carry out external processing of the log house yourself, we recommend that you read the recommendations for grinding given in this article log walls with your own hands.

Tool for grinding logs

Today in stores you can find very wide choose the most varied construction tools, including for sanding wood. But not every tool is equally well suited to perform this labor-intensive operation.

In order for the work to proceed faster, the tool should not be too heavy and have sufficient power.

The belt sanders on sale do a good job when sanding log baths and processing any flat wooden surfaces.

Some belt sanders are equipped with a special bag for collecting wood dust, which greatly facilitates the work.

However, when grinding a log frame, it becomes necessary to process the semicircular surface of the log, for which the belt grinding machines not so good.

It is better to use a grinder with special grinding attachments as grinding disc with sandpaper glued in the form of petals.

In hard-to-reach places, you can use a chisel, and do the main work with a grinder with a grinding attachment.

A grinder for grinding a log frame should not be too heavy, otherwise after the first day of work your hands will literally fall off. The power of a power tool of 850 W will be quite sufficient.

It is better to choose a tool from well-known companies that have long proven themselves in the market - Makita, Bosh, DeWalt or the domestic Interskol. Buying cheap Chinese crafts is a kind of lottery. You may come across a tool that will last for years, or one that will fall apart in two days.

Log grinding technology

You can start sanding the frame only after it has dried thoroughly. If you try to sand immediately after assembly, the wet wood will scuff and you won’t be able to get a beautiful smooth surface.

For grinding, you will need a supply of attachments with different grain sizes. For primary processing of logs with bark residues, various kinds unevenness, you will need sandpaper with a coarser grain (40), and for the finishing pass - with a fine grain (80-100).

Below is the correspondence between the numbers of imported and domestic sandpaper:

FEPA grain size	GOST grain size	Average grain size, microns
			Rough processing. Ripping off
			Medium processing. Smoothing the surface, removing small irregularities.
			Fine processing. Final sanding.
			Very fine processing. Sanding before painting.

Keep in mind that you will have to change the attachments often, since the abrasive wears off and becomes clogged with wood dust and resin. To slightly extend the life of one attachment, you can clean it with a wire brush and white spirit. But work productivity after such resuscitation will still be significantly lower than the initial one.

The sanding speed depends on the availability of appropriate skill, the power of the tool and the amount of resin in the wood. Average linear meter logs with a diameter of 30 cm are sanded in 2 minutes/

When sanding wood, a very large amount of wood dust is released, which gets into the eyes, mouth and nose. Therefore, all grinding work should be carried out using protective equipment– a respirator, goggles or a special mask.

How grinding is performed is shown in the video below (click triangle to view):

Treating the log house with an antiseptic and fire retardants

After the log house has been sanded, it should be treated with special compounds. As a rule, these are antiseptics to protect against putrefactive phenomena, a glazing antiseptic to give the log house a beautiful appearance, and fire retardants to increase the fire resistance of wood.

First, a layer of priming antiseptic is applied, after which a composition that shades the wood texture - bleach or tinting antiseptic, and then last resort coated with fire retardants.

Each composition can be applied with a brush or electric spray gun.

For primer, you can use Valtti Pohjuste antiseptic from Tikkurila. This antiseptic costs 2500-3000 rubles for 9 liters.

Also good performance protection is provided by the domestic antiseptic Neomid 440, which penetrates deeply into the wood texture and protects the wood from biological processes.

You can emphasize the beautiful wood texture with the help of high-quality Valtti Color antiseptics from the same Tikkurila.

The consumption of glazing antiseptic is 4-5 square meters per liter for planed surfaces and up to 10 square meters per liter for sanded wood.

It is available in forty different shades. There is also a colorless one. The cost of Valtti glazing antiseptic is approximately 280 rubles per liter. As an alternative, you can choose the domestic water-based Neomid Bio Color.

All compositions are easily dissolved with white spirit, which should be used to rinse brushes or a spray bottle after application. protective compounds on the walls of the log house.

After construction wooden house multiple are performed Finishing work, and grinding a log frame is no exception. Why is it necessary and how to do it correctly?

Why do log houses need to be sanded?

Sometimes people don't think about the fact that unsanded wood can quickly deteriorate. What is the purpose of grinding:

1. The remaining bark on the logs begins to darken over time. This is due to the effects of frost, temperature changes, numerous prolonged precipitation and other external factors. The result of this influence is the loss of aesthetic appearance. Sanding the frame brings it back, the tree becomes light (as if it had just been cut down).
2. To protect the walls of the log house of a built house (sauna, bathhouse). If the conditions of transportation or storage of wood are violated, fungal infection may occur. As a result, the beams may become covered with mold or dark spots. These biological damages can be eliminated with proper grinding.
3. Sanding the log frame is excellent preparatory stage before painting wood. This is especially true if a person wants to emphasize its natural beauty. In addition, sanding can reduce the amount of primer and paint.

At high-quality implementation This work can significantly extend the service life of wood.

To further prevent the occurrence of rot and reduce fire hazardous qualities, the wood is coated with special compounds.

How is the work of polishing the log frame carried out?

What to do before sanding a log frame

It is known that grinding a log frame is quite labor-intensive work. Its implementation requires specialized equipment and a lot of free time.

In order for the process to be completed as quickly as possible, people turn to specialists, whose services are by no means cheap. At the moment, the average price for work varies from 300 to 400 rubles per 1 polished square meter. This is why some people prefer to do this work on one's own.

Before you start sanding, you should wait until the frame or beams shrink. This is done when all the wood has dried to such an extent that its total moisture content is no more than 20%. You can check the humidity using a moisture meter. If you don't take into account this condition, the walls of the building may crack or become deformed. Yes, and when sanding wet wood, burrs will form. Because it's perfect smooth surface will be almost impossible to achieve.

To begin grinding, you will need the following equipment:

• moisture meter;
• chisel (designed for grinding only in hard-to-reach places);
• belt sander (sometimes not enough in hard-to-reach places);
• or a grinder with a special attachment in the form of a grinding disc and other attachments with different grain sizes.

The harm from the sanding process is that wood dust gets into the eyes, nose, and then into the respiratory tract. To protect themselves from such exposures, people use respirators and tight-fitting industrial goggles.

Using an angle grinder also requires special care. This tool is dangerous; strong pressure on it can provoke a larger removal of a layer of wood, and this reduces its protective functions.

The process of polishing a log frame

Having familiarized yourself with all the nuances of the work, you can begin the initial grinding process. First, treat the surface with a grinder using an attachment with a larger grain (40), then with increasingly finer grains (up to 100). The entire sanding process is carried out on the surface of the logs from top to bottom. During this process, it is worth remembering that the layer removed must be minimal, otherwise the service life of the wood itself will be reduced.

If the work is done with an angle grinder, you should be aware of the possible unpleasant consequences of using it incorrectly. It is also worth noting that its grinding wheels quickly become clogged with resin and wood dust. You can clean the nozzles using a special brush and white spirit, in which case its performance will be reduced.

The dust generated during grinding irritates the mucous membranes. Therefore, for convenience during work, people use special means protection (sealed goggles, transparent masks, etc.).

If you don’t want to work with an angle grinder, you can get by with other tools. The main rule for fast and quality work is the ease and efficiency of the grinding tool.

Thus, some builders prefer to use belt sanders (sanders). The work is carried out in the same way as with an angle grinder, according to the “bottom-up” principle. The advantage is the fast grinding of flat surfaces. wooden beams. Some sanders are equipped with special bags for collecting debris. To grind rounded beams in hard-to-reach places, you will need a chisel. Therefore, it is better to choose the use of a light grinder with a power of about 850 W.

After all the logs have been sanded, you should immediately begin processing with special fire retardants, antiseptics and to coloring. The use of fire retardants improves fire-resistant qualities, and antiseptics help protect against rot on the wood surface. If polished log houses are not painted in time, moisture may get on them, which will lead to slow but destructive effects on the wood. Therefore, everything should be done in sunny weather.

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