How to treat a wooden post to prevent rotting. How to properly process wooden posts for fencing

Wood is one of the available materials for construction work; it is often chosen for supports when constructing fences. Even an ordinary wattle fence or picket fence on a summer cottage will be in place and will decorate the surrounding landscape with its presence. However, all this beauty, unprotected from pests and negative impact nature, can quickly become unusable. Wood parts located in shaded areas of the site are especially susceptible to rotting. To maintain the integrity of the fence for as long as possible, it is necessary to treat wood parts with special compounds.

Basic mistakes in installing wooden supports

Methods for processing wooden fence posts depend on the reasons affecting their integrity. First of all, this is high humidity and the possibility of infection with mold bacteria and pest bugs. And if the part of the pillar located above the ground manages to dry out under the influence of the sun and wind, then this does not happen underground. Putrefactive processes develop slowly but inevitably.

To prevent this process, the pillar is treated with antiseptics and covered with protective waterproofing in the lower part. Typically, summer residents do not pay enough attention to the installation of wooden poles, especially the importance the right choice materials for support and their high-quality processing before installation.

When purchasing supports, you need to pay attention to the quality of the wood. On outside There should be no areas of rot and beetles. Maximum humidity wood should not be more than 15%. Purchased logs need to be freed from bark and dried a little. Only after this can you begin to treat with protective compounds.

Having marked the location of the butt, place the log so that it is at the top. This will make it impossible for water to flow through open capillaries. It is better to avoid wrapping the buried end with roofing felt. If water gets inside such a cocoon, it will not be able to evaporate and as a result, rotting will begin.

What and how to protect wooden poles?

To process wooden supports, you can use both classic professional and folk remedies.

Among the folk ones, the following stand out:

1. Treatment with birch tar or spruce resin.
2. Sometimes regular car oil is used as a protective agent. It is heated a little and applied in several layers to the surface of the support. The composition repels water well and kills pests.
3. An effective method of protection is burning with hot bitumen at the buried end of the log. The wood is burned with a gas burner and then coated with bitumen. A protective coating is applied in two layers. Each of them must dry completely and harden. This usually takes a day. The bitumen mixture has an unsightly black tint, so it is better to use it for the buried part of the support, which will not be visible underground. It is also important in what weather you impregnate the wood with the bitumen mixture. It is not recommended to do this in fog or rain.

Currently, a variety of compositions for treating wooden surfaces are produced. These can be mastics, pastes and other materials for reliable waterproofing of structural elements, including fence posts. These include mixtures based on bitumen - Biom-2, which is processed in several layers. A special thin mesh or film should be laid between them; such a coating will last up to fifteen years. The price of the material is quite low.

Another effective protective agent is Neomid 430. This antiseptic is capable of creating high-quality protection against pests and excess moisture. In addition, it protects the tree from the destructive effects of fungal spores, insects and even mosses. Manufacturers claim that the treatment will protect the wood coating for more than thirty years.

Installation processing

To correctly install a fence post, you need to determine the butt and make a mark that this is the top of the future support. Then you can proceed to processing the lower third of the workpiece. As a rule, about one and a half meters is covered with an antiseptic composition. You can immerse the support in a vitriol solution for two days or use potassium dichromate dissolved in sulfuric acid. Both components are 5% content.

The rest of the solution is poured into the ground around the support. This will increase the protection of the coating from fungal spores. After waiting for the impregnation to dry, the lower end of the log must be treated with a waterproofing compound. This may be a solution of bitumen, mastic or other substance.

Installation of supports can be done in several ways, each of which protects the structure from contact with wet soil and groundwater. The first of them consists of simply burying the treated end of the support in the ground. The area around the installed pole is well compacted. This is the cheapest installation method. However, you will have to check every two years whether the coating is damaged, that is, you will need to dig out and re-fill the hole.

In the second method, the hole being prepared should be twice as wide as the diameter of the post. A mixture of sand and gravel is poured into the bottom of the recess, then a mold is made from a non-woven material such as geotextile. It will protect the gravel layer from getting soil. The entire space around the post is filled with gravel and carefully compacted.

Installation using pipes

This type of installation, in addition to additional financial costs, requires a lot of time.

Consists of the following steps:

1. A previously prepared wooden pole is inserted into a hollow pipe made of metal or asbestos cement. The height of this sleeve above the ground surface is only 10 cm. As a result, the tree will be protected from contact with the ground and, therefore, from rotting. To prevent the support from falling out of the pipe, the diameter of the latter should be slightly smaller than the log itself.
2. Then the wooden blank is sawed shallowly at a height of 40 cm and the layer is carefully removed with an ax, which will allow the log to freely enter the cylinder.
3. I cover the lower part of the pillar with a layer of drying oil. It needs to dry for several days before tar is applied. It is melted to a liquid state and the post is immediately inserted into the pipe after processing. The gap between the log and the pipe is also covered with a tar mixture.
4. At the last stage, the ground part of the support is impregnated with a protective composition and paint or varnish is applied as a finishing layer.

For additional protection, the top of the support is covered with a special cap.

Protective means for the main part

It is not only the lower part of the pillar that requires special protection. The main support, which is located on top of the ground, must also be protected from negative influences environment. This applies to antiseptics and dyes.

To choose the right coating for poles, you need to decide what exactly you want to get in the end. If you want to preserve the natural beauty of wood, then choose substances from the collection of Pinotex, Belinka or AVIS varnish coating. If you need to obtain a bright and stable color palette, pay attention to domestic oil paints using zinc white.

Before painting, wooden surfaces must be primed. A pillar that has reliable protection will last a long time. And the fence will delight you for several decades.

Wood is one of the main building materials around the world. But it must be pre-treated in such a way that it can maintain its condition for a long period of time.
It is especially necessary to protect wooden supports and fence posts in order to effectively avoid the onslaught of bacteria, fungi and insects that feed on cellulose. Additionally, exposing wood to moisture is very harmful and can compromise its strength and durability.

Which pillars require antiseptic and impregnation?

Wooden poles - can be used in a number of industries, electrical, distribution, telecommunications, household.
Wood has high performance in terms of handling workloads. As a result, the number of wooden supports required is less than concrete ones, for example.
Due to their light weight, wooden poles are easier to install in the ground without a special foundation or grounding; no specialized fixtures or accessories are needed.

In the photo: excellent and best impregnation for wooden posts - logs and beams. Wooden supports for log houses, wooden houses made from rounded logs and various wooden fence posts using Neomid 430 eco impregnation acquire exceptional anti-rot qualities and better protection against destruction from all types of biological pests of wood! Buy this remedy It is recommended by leading experts in the field of wood protection for impregnation and treatment of poles!
The service life of wooden poles impregnated with the protective composition Neomid 430 eco from rotting and other biological influences is longer than that of steel or concrete poles and can last 30-60 years.

Which pole protection technology is considered the best?

To avoid many destructive problems, treat the posts with pressure impregnation in industrial conditions is the best choice for all types of construction projects. The degree of protection provided by the preservative Neomid 430 eco depends on how much of the chemical the tree has absorbed. During pressure impregnation, the protective composition penetrates deep into the wood structure.
But the wood from which poles or supports for a fence are made can be processed manually yourself, applying the product in 2-3 layers with a synthetic roller or brush, as well as by immersion.

Photo: Neomid 430 eco in a 5 liter concentrate package. This amount will yield 50 liters of the strongest antiseptic for impregnating wooden poles.

Environmentally friendly product Neomid 430 eco, approved by the Ministry of Environmental Protection, using the unique technology of the Neomid company, with strict compliance with European product quality standards. The class of wood treated with it is intended for use in contact with earth, water and concrete.

Enhanced protection of poles and supports is ensured by the fact that the product chemically bonds with the tree, strengthening it physicochemical characteristics, pushing oxygen and water out of the pores, sealing them, and making it almost impossible for destructive fungi, mold or insects to penetrate.

Processing and drying of wooden supports and fence posts should be carried out in dry weather, at temperatures above 10 degrees or in a ventilated room. Surfaces must be cleaned of paint, grease, dirt and rot. If necessary, the pillars should be treated with NEOMID 500. It dries completely in two days.

Photo: impregnation of wooden posts and a wooden fence with the non-washable antiseptic Prosept Ultra will help you avoid infecting the wooden structure with fungi and pests. We recommend treating poles buried in the ground with this product at least three times with an interval of 2-3 hours. Such repeated impregnation will help the wooden pole to be reliably preserved from the penetration of pests into the wood structure of the pole. It is best to process the picket fence itself from boards at least 2 times. This will also create conditions for reliable conservation of fence boards.

Photo: we have repeatedly carried out real experiments on the conservation of old lumber, logs and timber from the effects of various biological pests. Real experiments have shown good indicators for the safety of wooden products and structures in unfavorable conditions environment.

Procedure for applying impregnation

Before use, Neomid 430 eco should be diluted in the required proportions - since it is a concentrate. When working, use personal protective equipment.

Photo: It is best to treat the wooden surface of the pillars and the wooden fence itself using a regular high-quality paint brush.

Watch a thematic video about Neomid 430 impregnation

Watch a thematic video about Prosept Ultra impregnation

Where to buy in Moscow and the Moscow region?

Photo: high-quality and powerful impregnations for wooden structures Neomid 430 eco and Neomid 440 eco.

Photo: these effective impregnations (Prosept Ultra and Neomid 430) are best suited for treating poles before burying the ends of the poles in the ground.

You can buy this effective protective agent for impregnating wooden poles from our company from a warehouse in Moscow. Our partners are clients from the cities of Balashikha, Reutov, Zheleznodorozhny, Shchelkovo, Noginsk.

At the same time, we draw your attention to the availability in our warehouse of the best sealant for a wooden house and other wooden structures. Its price does not bite at all, unlike its American counterparts.

How to install wooden fence posts with your own hands

Wooden fence posts need protection from the adverse effects of moisture and external environment. The durability of the structure as a whole depends on a properly selected septic tank for protection against rot and insects.

The method of installing the pillars depends on the quality of the soil. Let's take a closer look at how to properly protect and install wooden fence posts.

Pros and cons of wooden supports

Wooden posts are the best option for attaching sections to a wooden fence of any complexity. No complex equipment is required to attach the logs to them. The advantages of wooden fence posts include:

• mechanical strength - the pillars can withstand strong gusts of wind;
• when using additional preventive treatment against rotting in problem areas, the service life can increase to 25 years;
• go well with wooden fence panels of various designs;
• environmentally friendly;
• budget option compared to metal poles.

Wooden supports for fencing

The disadvantages of wooden poles include periodic maintenance (painting) and the need to treat them against rot and insects. In places where fence supports are spliced, the protective layer is broken, resulting in rotting of the structure at the joints.

The service life of wooden poles with proper impregnation and additional protection from rotting in the ground is no more than 25 years, without protection - no more than 7 years.

How to choose the right tree?

For pillars, you need to choose well-dried timber without bark. Bark beetles and other pests most often live under the bark, so the material with bark must be thoroughly cleaned and treated with a septic tank to remove insects. Twisted and bent beams are the result of improper drying. It is almost impossible to install fence panels correctly on such supports. The humidity of the material should not exceed 15%.

It is recommended to choose planed beams for pillars made of larch, pine or oak. Oak pillars are preferable; they will last much longer, but their cost is much higher. You should also not take lumber with knots. In places where knots are located, the timber loses strength and can break off under mechanical load.

When purchasing timber, you need to pay attention to the presence of delamination of the wood and traces of mold. Material with mold, even after cleaning the damaged areas and treating with a septic tank, will continue to rot. Wood with delaminations is generally unsuitable for use.

How to treat wooden fence posts?

Wooden fence posts require not only systematic care after installation, but also preventive treatment against mold and rot. What is it for? Timbers of any species are susceptible to rotting. The areas at the border with the ground rot most intensively due to the fact that high humidity remains in this place, which means that a favorable environment for the proliferation of mold fungi is maintained. On higher sections of the timber, rotting does not occur as intensely due to the fact that the material at a height has time to dry and ventilate.

Wooden fence posts are susceptible to weevil and house borer. Insects prefer a humid environment, so they initially settle in the beams at the border with the ground, gradually spreading throughout the entire pillar, destroying it. To protect against pests, special septic tanks for wood are used. If, through an oversight, you come across an infected tree, it can still be saved, but only in cases where the lesions are localized and insignificant.

To combat bugs, local intestinal preparations and contact agents are used. For external work, you can use the following intestinal preparations: zinc chloride, sodium fluoride, copper sulfate and creosote oils. Suitable contact preparations chlorophos or hexachlorane. It is better to destroy heavily infected beams; such treatment is not enough for them.

Drying installed wooden supports

To protect against mold and fungi, it is necessary to choose septic tanks suitable for outdoor use. There are two types of impregnations. Some form a film on the surface of the timber, others deeply impregnate the fibers.

Penetrating impregnations are the most effective. These include Aidol Langzeit-Lasur, Belinka Interier Sauna and others. Senezh Ecobio can be combined with varnish and paint. Pirilax will additionally protect the beams from fire.

Suitable for protection against insects Aqua-varnish Bor, Aquatex, Polyex Woodpecker. There are universal preparations for complex treatment against bugs and rot. Water-based preparations are not suitable for fence beams.

Step-by-step installation of wooden supports

The usual driving of pillars into the ground is not recommended without first protecting the lower part of the beam from rotting. The part of the post that will be in the ground is first lightly burned and treated with resin. This method installation is unsuitable for rocky soils and soft land areas.

Preparing supports for installation

The process of installing wooden poles is performed in the following order:

1. The territory of the future fence is marked, the installation locations of the pillars are marked, taking into account the required interval between them.
2. A hole is drilled with a drill or dug manually to the required depth (1-1.5 m). The depth depends on the type of soil and the weight of the fence sections.
3. Installing a post in a dug hole.
4. Fastening the timber by concreting or backfilling.

On heaving lands, backfilling is used. For this purpose, construction crushed stone, fine gravel and broken red brick are used. The hole for the posts must be at least 1.2 meters. Sand is poured into the bottom of the hole, then a post is installed, which must be secured with wedges. The entire space around the pillar is filled with crushed stone with gradual, careful compaction. It is necessary to ensure that the pole does not deviate to the side. It is not recommended to use concreting on such soils.

Concreting wooden pillars is the most effective method installations.

The concrete solution additionally protects the wooden structure from moisture and rotting. For concreting, it is enough to dig or drill a hole 1 meter deep with a drill. For high fences with heavy wooden panels, the depth is increased to 1.2-1.5 meters. A pillar is installed in the resulting well and filled with concrete. Next, the beam needs to be moved and lifted a little so that the liquid solution penetrates under the base of the beam. It is not recommended to use cement mortar instead of concrete.

For any installation method, the pillars are treated with preparations to protect against rot and insects. The part of the timber that will be placed underground is kept in a septic tank solution for two days. Before installation, the poles must dry thoroughly.

The following video describes the installation of wooden supports and further installation of the fence:

Preface. In this material we will look at how to waterproof fence posts made of metal or wood with your own hands. Often wooden beams, logs, metal profiles or used tubing pipes are used for poles - all these materials require additional processing to protect them from moisture, sunlight and atmospheric precipitation. To protect poles, mastics, primers, paints and antiseptics are used.

Wood is the most common material used to construct fences on a site. A beautiful wooden fence will look harmonious between the beds, around the flower beds and around the country cottage. But unprotected wooden fence posts are susceptible to rotting and quickly lose their original appearance due to constant exposure to precipitation, wind and sun.

The correct technology for installing fence posts determines the service life of the entire structure. To properly waterproof fence posts, it is necessary to take into account the material of the posts, the type of soil on the site and take into account how they are installed. Taking into account all these factors, you should choose the optimal method of waterproofing underground and external fence elements installed in the ground.

Choosing waterproofing for fence posts

Bitumen-mastic insulation

The mastic coating consists of bitumen, polymers and various additives. The insulating properties of TechnoNIKOL mastic are high, and anyone can apply the composition to the surface, which is important. Bitumen-mastic protection lasts for 10-15 years. As the temperature drops, the mastic becomes brittle and breaks down over time from minor impacts of the soil during movements in the spring and autumn.

Rubber-bitumen insulation

Before applying the rubber-bitumen material, the surface of the pillars is cleaned of rust and degreased. Surface treatment requires an air temperature of +15°C and above; the material is applied with a brush or roller. Rubber-bitumen insulation consists of a primer and mastic. Fence posts and basement walls of a house protected in this way can be used in a wide temperature range.

Polymer waterproofing

Polymer insulation is most often used for gas pipelines and for waterproofing swimming pools. Installing metal fence posts with this type of protection is relatively simple and can be done independently. Among the significant disadvantages of polymer coating waterproofing is the poor resistance of this coating to mechanical damage during shear or subsidence of the soil.

Waterproofing wooden fence posts

In shaded areas and in places with high humidity, fence posts and boards will quickly lose their original appearance and become infected with fungus without proper waterproofing. Let's consider how to treat wooden fence posts so that they last for many years and retain their attractive appearance. The pillars require the use of various insulating agents for the outer part and the part in the ground.

Processing the underground part of the pillars

There are many methods on how and how to process fence posts with your own hands:

1 . coating the pillars with birch tar (the most proven method);
2 . processing of wooden poles by working in several layers;
3 . treating fence posts with bitumen or polymer mastic.

Mineral oil is an excellent water-repellent antiseptic; acid salts in the treatment kill any fungus on the surface of the wood.

You can prepare that part of the log that will be buried in the ground. A wooden pole is burned over a fire to create a charred layer several millimeters deep. Next, the surface is treated with tar or bitumen in two layers. Bitumen mastic is black in color, so treat only that part of the post that will be in the ground with the composition.

Processing the visible part of the pillar

The outer part of a wooden post also requires protection with antiseptics and paints and varnishes from the negative effects of precipitation. If it is important for you to preserve the texture of the wood, then you should pay attention to coatings such as varnish, stain, Belinka or Pinotex impregnations. If this is not important, then simple, inexpensive oil paint, as well as various paints for wood, will do.

Video. Waterproofing metal fence posts

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With all the abundance of modern materials and structures, wood continues to be one of the most popular, affordable and widely used materials in country and cottage construction. Lightness, environmental friendliness, low cost - these are not all the advantages of wooden structures. Unfortunately, this material has a very significant drawback - wood is susceptible to deterioration and rotting, which is accelerated in particularly unfavorable conditions.

It is worth noting that wood of different types of wood can be divided into three groups according to its resistance to decay:

• Resistant to rotting, they remain in the ground for 20 years. Among those found in Russia, these are Siberian larch, ash and oak - from these materials our ancestors made the lower crowns and columnar foundations of their huts.
• Moderately resistant to rotting, which may not lose their structural properties for 10-15 years. This group includes pine, spruce, cedar, and fir.
• Low-resistant and unstable species rarely survive in the ground for up to 5-8 years - these are linden, birch, aspen, alder, elm and others.

Fencing an area with a fence is one of the main and very first jobs that their lucky owners do on their property. Many summer residents make fences from ordinary wood and are seriously concerned about the safety of wooden posts - they don’t really want to change them every 7-8 years.

There are quite simple ways protecting wood from rotting, but first it makes sense to understand the reasons for this process. Wood deteriorates from the constant presence of moisture and oxygen. For example, a fence post dug into the ground can be divided into three zones, which are in different conditions:

• the upper part of the column, located above the ground, surrounded by a sufficient amount of oxygen, but there is not enough moisture in it for intensive rotting; periodically it is wetted by rain, but dries very quickly;
• the lower part of the pillar, on the contrary, is underground and in wet conditions, with a lack of oxygen, therefore it rots very slowly;
• the middle part of the post - about twenty centimeters above and below the ground - is located precisely in conditions most conducive to rotting - there is a lot of moisture from the ground and enough oxygen - therefore the posts of your favorite fence for the dacha deteriorate most in this area.

Protection of the underground part of the pillar

What can be done to protect the underground part of the pillar, especially at the boundary between earth and air.

Firstly, the pole must be installed with the butt (lower, thicker part) facing up. The fact is that the movement of juices in a growing tree occurs through the capillaries of the fibers from the roots to the crown due to osmosis. If you bury the post upside down, the fibers will not draw moisture as actively.

Secondly, the wooden post must be made of dead wood that has not begun to deteriorate. If this cannot be controlled, or the owner knows that the tree was cut down while standing, it is necessary to cut the poles to the required sizes, free them from bark, thoroughly sand the surface and put them under a shed for storage, at least for a year.

Third, the entire part of the pillar that is planned to be buried plus 50-60 cm must be impregnated with an antiseptic, better method immersion for a couple of days in a solution of copper or iron sulfate. At the same time, so that the impregnation does not wash out through the upper end, it is necessary to provide some kind of decorative cap on it.

And finally, the most important thing is that you need to dig a hole for the post 10-15 centimeters deeper and 2-3 times wider than the diameter of the wood. After this, pour coarse crushed stone onto the bottom, install a post, fill it with the same crushed stone to the top and compact it thoroughly. This way, the lower part of the post will be provided with drainage, ventilation and no contact with wet ground. It is better to line the hole with geotextile before backfilling - then the earth will not mix with crushed stone and clog the drainage. To make it more decorative, the column can be painted with vapor-permeable paint.

The measures outlined above are simple, quite affordable, including in cost, but allow the owner to save significantly - after all, wood is much cheaper than metal or concrete. Fence posts installed using this technology will last at least 30-35 years, even if the wood species used for their manufacture is not the most rot-resistant.