Despite the diversity of modern building materials, buildings made of wood do not lose their popularity. A log house is a wooden structure made from several crowns of timber or logs, which are fastened together in the form of a quadrangle without a roof or floor covering. Gorodnya, povalusha, four-walled, five-walled, six-walled, eight-walled, “in the oblo”, “in the bowl”, “in the paw”, “in dovetail“- what kind of log houses there are! This is a kind of blank, the frame of your future wooden house. In Rus', craftsmen managed to make log houses by connecting logs together without a single nail.
When the house is “assembled”, you can begin one of the most important stages of finishing – sanding. Logs with bark residues from which the log house is assembled look unattractive, and are also subject to rotting and exposure to bark beetles.
Why grind:
- Protect the tree from microorganisms and mold.
- Make the surface smooth for better adhesion (layer bonding) paint and varnish materials), eliminate cracks.
- Give wood an aesthetic appearance, emphasizing the texture of the material.
- Prevent premature aging wood.
How to polish a log frame
A tool for grinding a log frame should have sufficient power, but not be heavy. Optimal solution– a parquet belt sanding machine with built-in bags for collecting sawdust and dust. Unfortunately, if the house is made of semicircular logs, such a device will not cope with sanding. When processing grooves and end sections, the owner can use an angle grinder, popularly known as an angle grinder. Grinding is carried out using attachments of different grain sizes. Fine-abrasive and coarse-abrasive grinding wheels are used alternately to obtain a perfectly smooth surface.
Stages of polishing a log frame:
- Rough stripping of bark.
- Medium processing – smoothing the wood with a coarse abrasive with a grain diameter of 40 and above.
- Delicate processing using a fine-grained nozzle (80-100).
- Final sanding before applying paints and varnishes.
When is the best time to polish a log frame?
Before choosing a tool, you need to decide on the time for grinding work. Sanding precedes all other finishing work: it is carried out before applying antiseptics, fire retardants, impregnations and paints and varnishes.
According to the rules, it is carried out one year after the construction of the structure. During this time, the process of shrinkage occurs - a natural reduction in the volume of the log due to the drying of the wood and the achievement of a moisture balance between the wood fibers and the environment. Over the course of a year, under the influence of atmospheric phenomena, the log house darkens, and polishing - necessary stage its processing before further finishing.
Work on grinding a log frame is carried out only after the wood has completely dried. Wet wood will not allow sanding to make the surface perfectly smooth: the fibers will rise and be torn off unevenly by the machine.
It is better to sand the log house in warm, dry weather. The optimal time is late spring and summer. Abundance of sunshine and heat with minimal humidity, they help dry the logs before sanding. If the time has come for prolonged rains, and the log house is not sanded, and, of course, there is no opportunity for it to dry, it is worth covering the logs with polyethylene or other covering films (for example, roofing felt) and wait until the dry weather settles. As we wrote above, moisture interferes with the operation of the grinding apparatus, the fibers swell and rise. Hired workers may insist on carrying out work at any time of the year and in any weather, as they are driven by time constraints. However, remember: after grinding they will leave, and you will live in the house and admire the consequences of grinding. True professionals will definitely warn you about the disadvantages of sanding in wet weather and will not begin the process even at the expense of their time.
It is interesting that the optimal time for assembling a log house is winter, and grinding work is recommended to be carried out a year after construction - it turns out that this is also in winter. But we wrote above that the best time is summer period. In addition, after grinding it is necessary to treat the surface with antiseptics, which only work at above-zero temperatures. So what to do if there is no opportunity to postpone polishing until warmer times?
Sanding a log frame in winter
In winter, concentrated in upper layers the moisture freezes, forming an ice crust. Ice does not allow deep penetration of the antiseptic, which is applied after grinding. Therefore, all protective impregnations lose their effectiveness. In addition, wood fibers expand, deforming and forming cracks. On the other hand, in winter all natural processes slow down, mold and mildew cease to pose a particular danger to wood, so work on treating with an antiseptic can be postponed until spring. But there is another problem: a sanded log house without applying protective impregnations, even with weak but still significant exposure to UV rays, can turn yellow, which will lead to the need to re-sand the log house in the spring.
So, if there is no way out and you have to start grinding winter period, special technology must be followed. It is extremely difficult to sand a log house on your own in winter; moreover, even the most savvy amateur is not immune from mistakes, which over time will reduce all the work to nothing. It is better to entrust winter sanding to specialists.
At negative temperatures grinding is prohibited outdoors, therefore, a kind of sarcophagus is built around the building - installed around the perimeter scaffolding, covered with polyethylene or other covering material. However, the problem of ice crust on the surface of the wood is still relevant, so hot air is blown inside the sarcophagus using heat guns until it reaches desired temperature. Only after these procedures is polishing performed with professional equipment.
Concerning sanding a log frame in rainy weather, it is still better to avoid dampness during wood processing. Wet fibers swell and rise, being cut unevenly by the sanding machine. If grinding in the rain is unavoidable, the same technology is followed as for winter work: preliminary construction of a thermal sarcophagus.
Important! Do not leave the sanded surface untreated. It is recommended to maintain a time interval of no more than 48 hours between sanding and applying primer and antiseptics, otherwise the log house will require re-treatment.
Sanding is a time-consuming and responsible process, however, if you ignore it now, you will lose much more time and money in the future, trying to restore the once beautiful wooden building, darkened due to untimely processing.
Whether to sand timber walls or not is not a question that arises for the owners immediately after construction before painting. But they are thinking about how to do this work themselves or hire a team of specialists. But after studying the price list, craftsmen grind the timber with their own hands. This article will tell you which tool is best to use for grinding a log frame and how to avoid mistakes when working with your own hands.
Articles in periodicals and the Internet say that sanding dry timber is easier, so better home wait a year or more after building a house made of timber. But just think about what they do to the walls during this time? The timber will crack, and even coated with all sorts of compounds without sanding, it will look unsightly. Such walls can be seen in numerous photos on the Internet.
The first thing you need to do after building it, even from a naturally damp material, is to protect the walls from external influences. And if you paint without sanding, these tasks will not be completed.
Of course, processing natural moisture is more difficult, since individual fibers will separate. But if you cover the wood natural humidity Without pre-grinding, cracking cannot be avoided.
There is only one conclusion: walls of any humidity need to be sanded immediately after building a house. And if you assemble the house and cover it with a roof, preserve it, then drying will occur slowly and evenly. Moreover, the grinding technology is designed for various types wood.
What are the benefits of sanding?
Sanding a log frame helps in the following cases:
- Under influence sun rays the wood takes on a dark yellow tint. Sanding returns the natural, even color.
- If you do not sand the timber before coating, the impregnation will be absorbed unevenly and pigment spots will form on the walls.
- By removing a millimeter, the pores of fungi and mold already on the wood are neutralized from above.
- It is rare to see a completed timber structure with clean walls. Sanding will remove all dirt and unevenness, the walls will look like in advertising photos of construction companies.
What you need to polish a log frame
The following tools are used to polish a wooden frame:
When doing sanding with your own hands, they mainly use a drill and a grinder. Almost everyone who has built a house from laminated veneer lumber or other lumber has such a tool. The other tools described can be rented or used by professionals who have them available.
For any grinding work, you must use a mask and a respirator. Wood dust is very fine and easily penetrates the eyes and nasopharynx.
The quality of work depends on the chosen tool and the rigidity of the nozzles. For external processing Wheels No. 80 and 120 are suitable. No. 80 is used for sanding rough parts of a log house, 120 removes dirt and levels the surface for painting. For rough grinding, No. 30 and 60 are used. They are also used to clean old paint and varnish coatings.
In any case, the grinding tool should be light and powerful. A heavy tool reduces productivity by 2-3 times, and low power will significantly increase the time spent. You can see how the tool works and looks in the photo on the Internet.
Wall sanding work
Before starting grinding work, the walls need to be inspected. If there are pieces of the “Radial Structure”, in other words, peeling off, then during grinding they will become shaggy and damage the tool. Such places are being processed adhesive composition, after this the walls are allowed to dry for about a day. This technology has proven itself not only for timber with natural moisture, but also for chamber drying. After this, the walls are sanded, starting with large nozzles and ending with small ones. A beam with sections of a radial structure can be seen in one of the photos for this article.
After sanding, you shouldn’t wait, but it’s better to treat the walls right away special compounds.
Special attention When grinding, you need to turn it on the ends.
The ends after the construction of a house from profiled timber are most susceptible to all kinds of influences. They absorb moisture instantly, and when covering the consumption paint and varnish compositions at the ends it is 5 times higher. The ends must be processed especially carefully.
Our grandfathers used a blowtorch or a hammer to save the ends. Roasting is an old and proven method that really increases the life of wood. But at the same time, the appearance of the timber changes to unattractive, as in the photo. The ends were tapped with a hammer to completely connect the fibers and plug the channels. This makes the surface hard and smooth.
Modern methods and numerous attachments allow processing until the ends are completely smooth. To do this, first use nozzle No. 35 and gradually reach 120. With proper sanding, the ends will not absorb paint as forcefully and are less likely to crack. They need to be treated with special compounds for the ends. You can use liquid glass.
After sanding, all dust from the walls must be carefully removed. Particular attention is paid to connecting locks. Dust can be removed indoors using a simple vacuum cleaner and a long-bristled brush. It is blown out from the outside and cleaned with the same brush.
Corner processing
If there are completely inaccessible areas, then you can use a chisel or a block with sanding paper.
Grinding of rounded logs can be carried out partially or completely. It all depends on the quality of the material. The rounded log reaches the buyer already treated with primers and antiseptics. This layer will be removed during sanding. Therefore, after grinding, the rounded log is immediately coated with impregnations and antiseptics.
The rounded log needs to be sanded dry, after shrinkage at home. Before sanding, check the caulk and reapply if cracks appear. It is important to caulk before sanding as it can be damaged while working.
There is no need to process a rounded log with coarse attachments. They use a grinder for grinding; it is more difficult to work with a machine on rounded surfaces. At the first stage, the rounded log is sanded with a grinder with nozzle No. 100. It will raise the hairiness. Then No. 125 which will level the surface. Corners and connecting parts are processed manually.
If you sand without errors, the surface will look smooth as in the photo and pleasant to the touch.
What mistakes are made when working independently?
- When working with tools, you should not allow high speeds. This will leave unevenness and grooves on the walls.
- When sanding coniferous timber, you must first remove any remaining resin. If this is not done, grinding will spread the resin over the surface. thin layer and it will be almost impossible to remove it.
- Defects in the timber that are not coated with adhesive will become disheveled after sanding and will look more unsightly.
- After coating with varnish or paint on water based the pile rises. For complete leveling, after the first coating, re-grind with a wheel No. 120. You can use compounds for chemical basis, they do not affect the pile.
- Sanding is carried out before the main finishing and installation of windows, doors, and ceilings. This will make it easier to remove wood dust, of which there will be a lot.
The faster sanding is completed, the easier the work will be. Over time, the wood hardens and performance will decrease. Try to sand immediately after or during construction.
Wooden house, its warmth and fabulous appearance are the dream of many romantics who want to build not just a home, but a cozy nest for their family. In most cases, this idea has to be abandoned in favor of a more durable materials. Sanding a log frame and knowing how to properly process wood log house allows you to dispel all doubts and prejudices about wood.
Peculiarities
The process of building a house from any material is always very labor-intensive and includes several steps.
Sanding is one of the important stages of finishing logs, allowing you to protect the wood from such factors as:
- rotting;
- the appearance of mold and fungi that destroy natural building materials;
- darkening;
- uneven logs;
- exposure to moisture and insects.
It is worth noting that sanding is needed regardless of the type of log. Thus, rounded and chopped logs must be sanded, despite the aesthetic and presentable original appearance.
Sanding a log frame has the following advantages:
- additional material protection;
- improving the penetration of antiseptics and paints into logs;
- savings in paint and varnish consumption;
- removing dirt from wood that invariably accompanies transportation.
And yet, some unscrupulous craftsmen neglect grinding, because this process is quite labor-intensive, time-consuming and energy-consuming. In addition, it can be carried out only after complete shrinkage of the logs, which on average ranges from six months to a year, depending on the type of structure. You can reduce time costs by purchasing laminated veneer lumber, which is thoroughly dried during the manufacturing process, so it practically does not shrink. Sanding wet wood will certainly cause scuffing and damage.
So, having decided to build a house according to all the rules, you should refuse tempting offers to build turnkey log houses. As a rule, they are not aimed at long-term quality, but at speed of implementation, which, one way or another, affects unpleasant surprises during the operation of the building. And also don’t skimp on services. professional craftsmen on grinding logs, because it requires not only the proper skills, but also special tools and means to protect your health.
When is it held?
Construction good home It’s not a quick job, so you should be patient, which will later be rewarded and pay off. Wooden log house delivered, installed and covered with a roof in the first season. It can dry for about a year, and sometimes even two. This range of numbers is influenced by the time of year of felling, the type of wood and storage conditions.
It is especially worth emphasizing this when purchasing wood to order, because, as a rule, sellers prefer to remain silent about such nuances.
During the entire drying and shrinkage period, sanding the house is prohibited. According to experts, it is also not worth covering wood with antiseptics, since no harmful changes in the structure can occur within a year. Subsequent sanding will easily remove darkening and blue stains on the logs, since the peeling of the top layer is from 1 to 2 millimeters, and in some cases more. Installation of windows and doors is carried out after the procedure.
Tools and materials
Sanding a log frame is a costly process, as it must be done correctly. Close attention should be paid to purchasing high-quality tools, the list of which is considerable. The first and main tool for creating an aesthetically pleasing type of wood is a grinder with grinding disc. It is worth noting that the price range is wide, because both non-branded and professional equipment are presented on the market. Experts advise choosing the golden mean and, if possible, purchasing two tools at once. This solution will prevent loss of time when changing attachments from coarse to fine. In addition, such tools rarely lie idle in your home, so purchasing a good grinder is a profitable investment.
The power of the grinder should be from 700 to 1000 W. More powerful models can cause a lot of discomfort due to their significant weight. A lightweight model with comfortable handles and a long cord is best suited for home processing. It is important to remember that the work will be done mainly by weight. Another argument in favor of an inexpensive tool is the fact that the working life of an angle grinder may end after all finishing works. The optimal disc is 125 mm. To reduce clogging, air intake should occur from the rear. A side fence when sanding a house can damage any grinder.
Speaking of attachments, you should choose a plastic one rather than a more reliable rubber model. The nuance lies in the fact that the rubber, if accidentally touched, will leave a black mark, which will certainly spoil the appearance of the log house. Choosing wheels for an angle grinder is another step towards the fabulous home of your dreams.
Since grinding will take place in two stages, during the work you will need the following flap discs:
- with grain 40–60;
- with grain 100–120.
On average, one coarse-grain disc is required to grind a surface equal to 4 m². In this process, rounded timber uses disks more economically than chopped wood. The consumption of fine-grain discs will directly depend on the quality of work performed with large grains, so it is not easy to predict expenses in this case. However, when starting such a long procedure, you should stock up the right amount consumables, avoiding subsequent painful searches for the necessary tools.
The next important, although less powerful, equipment is an eccentric machine with a power of 200–300 W. It is perfect for rounded, flat logs. The advantage of the model is the dust collector, which can significantly improve the surrounding atmosphere. Various circles are used. So, for rough grinding you will need models with a grain of 40–60, for more thorough grinding – 80–100.
When carrying out work, special attention is paid to grooves and corners. To grind them, an old one is used, but effective tool- chisel. Optimal width a knife with parameters of 20–25 mm is considered. An angle grinder can also be used, but with attachments smaller than the disk. Otherwise, the device will jam, which may subsequently lead to its failure. The ends are sanded using a grinding wheel with 40-grit sandpaper. You can polish them using an angle grinder.
In most cases, ideal smoothness in this zone is not achieved, limiting itself to coarse and medium grinding.
Alternative method grinding is sandblasting and abrasive blasting, which allows you to achieve aged and natural look wood.
It is performed using a special and expensive equipment, such as:
- Cooper slag;
- soda;
- garnet;
- specialized types of sand.
The essence of this treatment procedure is to bombard wood with sand particles with a powerful air flow. The result is a clean surface of the log house without fungi and mold, even in small cracks. It is worth noting that it is almost impossible to sand such parts of the log by hand. And also, you should not carry out brushing yourself with ordinary sandblasting, as it can break and ruin the appearance of the surface.
In a budget way To carry out brushing is to use a nylon brush. Compared to sandpaper, a nylon brush on a sanding machine does not clog, which saves time and the amount of consumables.
Technology and work procedure
The grinding process includes steps such as:
- rough grinding;
- medium processing;
- fine processing;
- final sanding before applying varnish.
The first stage of work is to divide the entire surface of the wall into several sections., which will improve the quality of sanding work and cover the walls with paints and varnishes in a timely manner, because this must be done on a clean surface within 1–3 days. After dividing into zones, grinding is carried out with coarse grains. The wood is then covered with fluff, which is subsequently removed with petal discs of finer grain. The process of fine processing refers to work with a chisel. Final polishing to perfection smooth surface done with your own hands using grout and sandpaper.
Particular attention is paid to joints and all hard-to-reach places.
Processing after
When it's long and labor-intensive process sanding is complete, it's time to coat log house special compounds and means. As mentioned earlier, this should be done immediately after cleaning the timber, because sanded wood is defenseless against any dangers, bacteria and contaminants. It is necessary to cover the outside of the house in several layers and with several means, which are presented in a wide range today.
Processing should be carried out in such layers as:
- antiseptic;
- antiprene;
- primer;
- glazing compounds.
It is worth noting that it is necessary to treat the house inside, using water-based or combined products. Despite more favorable environment, timber and logs located in the house are also susceptible to fungi, mold and the proliferation of harmful organisms. It is necessary to carefully read the label and composition of the product for interior decoration and make sure that it can be used inside the home. The first and most important layer that sanded wood will feel includes antiseptic agents.
Today they are represented by two types:
- impregnable compositions;
- coating agents.
The first type is deeply absorbed into the wood, creating a protective barrier against mold and mildew, while the second subspecies forms a film on the surface that protects against moisture and dampness. It should be noted that impregnated compounds are most often quite toxic substances, so their use for internal treatment is hazardous to health. Biomoisture protective products belonging to the category of antiseptics are attractive to consumers. By protecting against moisture and fungus, they create additional decorative layer, revealing the natural beauty of wood.
The second key stage of wood coating is antiprene treatment. These funds are aimed at giving natural material high stability to fire. Antiprens are divided into saline solutions and non-saline agents. Saline solutions When ignited, they release gases that prevent ignition. When using non-salt products, foam forms on the surface of the wood, blocking any fire.
The importance of treating antiprenes is difficult to overestimate, because without proper treatment, wood will flare up like a match, leading to tragedy.
Today famous manufacturers To reduce the number of layers, biopyrenes were developed that combine the properties of antiseptics and antiprenes. They can be used for both external and internal processing. Painting of the house occurs after priming with water-soluble compounds using glazing compounds or facade paint. The first type refers to modern means, allowing you to reveal the beauty of the log house with the help transparent types or varieties with numerous shades, reaching more than 40 tones. Facade paint for exterior decoration it has the advantage of being inexpensive, however, in most cases it covers up the natural charm of wood.
Grinding a rounded log with your own hands must be done using the developed technology, in accordance with specific rules and obligations.
Suitable period for grinding
During the production of rounded logs, the wood remains naturally moist. Undried wood is not intended for sanding, as such work will cause even more “frizz.” The best time for processing, 10-12 months are considered after the completion of the construction of a log house, before the start of cladding.
Sanding of logs is carried out on an already covered building. Otherwise, further finishing will not be effective enough. If over the past year the logs become covered with a dark coating, then they need to be painted with a special antiseptic with a bleaching effect. Processing begins only after the wood has dried.
After finishing sanding, it is necessary to treat the canvas with a disinfectant or paint and varnish composition, otherwise the wood will darken again and all actions will be in vain.
An equivalent shade of a log house can be obtained by finishing maximum four days after completion of grinding activities.
Grinding Tools
The modern construction market offers many devices for self-grinding rounded logs, but not all of them are able to cope with the task at the proper level.
The equipment used in the work must be powerful enough, but not too heavy at the same time.
Belt sanders work well on flat wood material, but are not suitable for semicircular logs.
It is better to take a grinder with a special attachment for grinding, which looks like a disk with a fixed sandpaper in the shape of petals. Its power must be at least 0.85 kW. It is most convenient to use 12.5 cm wide discs, although you can choose other models. Hard to reach places It is recommended to process it with a chisel.
For initial, rough processing, use flap discs with coarse grain (40-60) or a simple abrasive. It is worth considering that the discs will have to be changed frequently: every 3-5 meters. The number of fine grinding discs (100-200 mm) depends on the quality of the initial processing. It’s better if they have Velcro, so they can be replaced faster.
Thus, to perform high-quality grinding of logs you will need:
- Eccentric sander;
- Grinder with sandpaper;
- Chisel.
Grinding work generates a large amount of dust, so it is worth preparing personal protective equipment.
All equipment must be manufactured by trusted manufacturers who guarantee its reliability and durability.
Grinding sequence
Sanding logs is considered a labor-intensive and important process, so it is recommended to follow all its stages:
- Work begins with removing the top wood layer. To do this, you need to take a nozzle with fixed sandpaper with grains No. 160-40. This treatment will result in the formation of lint.
- Next, finishing processing takes place using a nozzle with grain No. 10-8, which removes the lint that has appeared from the wood.
- On last stage Final grinding is carried out with grains No. 6-M63.
Hard-to-reach areas are best treated with thin plastic attachments, which are affordable and durable. The most difficult places to sand are the joints of logs at the corners of the building. Here you can use a chisel with a cutting piece 2 cm wide.
Sanding a rounded log should be done slowly, in the longitudinal direction relative to the wood threads. At the same time, do not press too hard grinding tool– work should go as smoothly as possible.
Processing of end elements
The ends are the areas with the greatest susceptibility to negative external influences. They absorb moisture the fastest, and they account for the maximum waste of paint and varnish compositions. In this regard, the ends of the house require a careful approach to grinding.
Our ancestors used a blowtorch and a hammer for processing. Firing the ends increased their service life, but had a negative effect on the appearance. Tapping with a hammer was aimed at better connecting the fibers and blocking the passages that absorb atmospheric moisture. Such manipulations made the wood surface hard and “mirror-like.”
Today, several attachments are used for grinding ends. Work begins with number 160 and ends with number 10. Compliance with all technological requirements allows you to reduce the absorption of moisture, paint, varnishes and increase the service life of the log structure.
Sanding a rounded log with your own hands will go “smoothly” if you listen to the advice of professionals:
- Should not be included grinder at too high a speed: this will create deep furrows in the log.
- Sanding the resin surface causes it to rub and blocks the removal procedure.
- Places of radial wood must be treated with glue and wait until it dries.
- The use of water-based paints and varnishes during initial painting may result in lint raising. Repeated sanding will help correct the situation.
- Processing of rounded logs must be done before installing doors and windows.
Grinding log house It’s completely within the capabilities of any homeowner. But remember that you will have to spend a lot of time and effort on it.
Wooden buildings have undeniable advantages. Wood absorbs moisture or dries out, regulating the level of humidity in rooms. The tree breathes, which is why it happens natural ventilation, Wood retains heat and is an excellent sound insulator. But if you don’t take care of the log house and don’t help it, it may lose some useful features.
Why is it necessary to sand a log frame?
Experts insist on grinding. But not everyone listens to such recommendations, believing that the procedure is only needed to improve the appearance of the building. But in vain.
Grinding of the log house is carried out after completion of construction, or after the final shrinkage of the house. The procedure is labor-intensive and requires good physical fitness. It is immediately worth emphasizing the need to use protective equipment, dust, wood particles can damage the skin, eyes, and respiratory tract.
Be sure to wear personal protective equipment when sanding. These are wide glasses with tight-fitting sides, a respirator, headphones and gloves.
The purpose of sanding is to remove the top darkened layer of wood, remove irregularities, and smooth out imperfections. Appearance the structure is noticeably improved, the natural golden color with a natural pattern is restored, technological traces of processing from crooked cuts and plane marks are removed. Logs or beams are given a beautiful geometric shape, round or otherwise.
The wood gets rid of harmful microflora; the treatment will eliminate mold and fungal formations in the future. The bast layer that has lost its quality is removed by 2-3 cm, the bark is removed, and places where bacteria can multiply and rot can form are cleaned.
Important! The main purpose of sanding is to prepare for the application of the final protective coating. Leveled walls take up less paint and varnish materials, surface adhesion improves, and wood absorbs impregnation better.
Treatment with fire retardants and antiseptics protects wood from negative impact environment, improves its properties. Sanded logs with protective coating– a guarantee of durability, strength, and high performance characteristics of the structure.
A rounded log sometimes has polished areas that appear due to violations of processing technologies; these places repel impregnation and quickly deteriorate, which can lead to contamination of neighboring logs with putrefactive formations. Careful sanding eliminates this problem.
What tools are best to equip yourself for polishing a log house?
Today it is not difficult to acquire the necessary tools for carrying out the procedure. You should arm yourself with:
- grinding machine;
- cutting machine;
- chisel.
Modern technology certainly makes the task easier. You need to learn how to use a grinder by adjusting the pressure. Excessive efforts can lead to defects; you cannot make mistakes so as not to spoil the appearance of the building. The corners and inter-crown depressions are ground with a grinder; the recesses are processed manually with a chisel. It is better to use a chisel 20cm wide.
Important! When choosing tools, you should pay attention to weight, so as not to put too much strain on your hands and power. Tools with low power will heat up, significantly reducing productivity. High-quality tools are produced by Makita, Bosh, DeWalt, and the domestic Interskol is also worthy of attention. The equipment is high quality and durable.
For timber log house need a tape Grinder, its use will provide a smooth surface. Equipped with a special dust collection bag, the machine will make subsequent cleaning of the room easier. I'll round the surface of the logs with a belt machine, it's difficult, a grinder and special attachments will come in handy here. The correct power of the cutting machine is 600-900 W. Nozzles with different degrees of grain. Initially, use a coarse-grained nozzle (40), then take a nozzle 80-100. Disc 125mm, speed 10-12 thousand, preference should be given to a machine with a rear air intake and a long cord that provides freedom of action.
Important! For work, it is more convenient to use two machines, so as not to overheat and not change attachments; first work with the attachment with large grains, then with fine ones. Using plastic attachments; flexible plastic with an abrasive layer is more convenient, leaves no marks and lasts longer.
Grinding process technology
The grinding technological cycle consists of three stages:
- draft;
- main;
- finishing
Rough work is stripping the surface, the main stage is to smooth out irregularities, finishing Treatment with special substances that support the health of wood is mandatory.
The grinding process requires time and skill. In 2-3 minutes you can process 30cm of timber. Forced use greatly slows down the process hand tools in places where the machine cannot reach. The processing speed largely depends on the complexity of the architecture and the resin content of the tree. Frequent replacement of nozzles is required; they become clogged; they should be cleaned with white spirit and a wire brush.
Larger surfaces are best divided into sections; each section should be sanded in three stages with final treatment with impregnating compounds. If you do not saturate the area immediately, it will quickly darken and the work will have to be done again.
Sanding rounded logs
An eccentric grinder will help make the surface smooth and even; working with an angle grinder requires certain skills, without which you can make grooves and depressions. Disk lock option eccentric machine will help get rid of such misunderstandings. It is necessary to use discs with abrasive 30-60 for primary processing and 100-120 for finishing. The required power of the machine is 200-300 W.
Grinding of corners and inter-crown joints
The grooves and corners are polished with a cutting machine. You need to take a nozzle smaller than the disk size. The grooves are ground with a chisel. Some people advise starting with the corners, others think that they should end with them. There is no fundamental difference. It is important to treat the surface with protective compounds immediately after finishing sanding.
End grinding
To process the end of a log, you will need a grinder with 40 abrasive. There is no need for finishing sanding; it is impossible to achieve perfect smoothness. But enhanced treatment with primers and other compounds is required. The ends of logs are especially susceptible to getting wet.
Sanding inside the house is no different. If additional wall finishing is not planned, processing should be carried out with the greatest care.
Processing glued or profiled timber is easier, the surface is smooth, it is enough to remove the top layer that has changed color. Factory-made timber is usually treated with fire retardants and antiseptics. This treatment will last for a year or two. However, then you will have to work hard to return the timber to its original qualities.
Proper processing of timber after grinding
Proper wood processing increases the durability of the structure, eliminates wood damage, and reduces the costs of subsequent maintenance and repairs. It is better not to save on purchasing funds. High-quality compositions purchased in reputable stores guarantee reliable protection wood from natural aggressions, rotting, fungus and mold. When purchasing protective mixtures, you should pay attention to the warranty period.
Impregnation is applied manually, with a brush or spray. To improve aesthetic qualities, many use impregnations with coloring pigments. For correct processing required:
- antiseptics;
- flame retardants;
- glazing compounds.
Antiseptics block mold and rot, fire retardants increase resistance to fire, glazing compounds make the surface more beautiful.
Important! It is preferable to purchase Valtti Pohjuste antiseptic from Tikkurila, Neomid 440, Neomid Bio Color. Antiseptic Valtti Color favorably emphasizes the wood texture. The products are not cheap, but worth the money spent.
Consumption of the composition is approximately 1 liter per 1 m² of sanded surface. White spirit is used to wash hands and arms.
Grinding important stage in the construction of a log house. You can do it yourself, or you can invite specialists. The cost of work is 300-400 rubles per 1 m². Grinding big house– the event is expensive, there are no big difficulties in the work, the choice is yours.