Why does mold appear on wood and how to get rid of it. Causes of mold on the boards and effective methods of dealing with it The best remedy for wood fungus

Despite the development of technological progress, wood remains one of the most popular building materials today. It forms the basis of houses, fences, arbors, baths, as well as furniture. Wood is used for exterior and interior decoration, as well as public and residential buildings. This material has many advantages, it is environmentally friendly and affordable. However, along with the pluses, there are also negative characteristics, which are expressed in fire hazard, high water absorption, as well as the possibility of decay.

The need to use antiseptics

Mold and fungus often form on wooden surfaces, which is especially true when products are used in high humidity. Since ancient times, wooden buildings and products have been protected by various compositions, which could, if not prevent, then slow down negative processes. However, the modern development of the chemical industry has made it possible to create more reliable and multifunctional compositions, with the help of which the material acquires the ability to withstand adverse factors, it lasts much longer and looks more attractive.

Methods for applying compounds to protect wood from decay

Wood treatment with an antiseptic is carried out only after surface preparation, which must be cleaned of dirt and dust, as well as grease and oil stains. Film-forming water repellents can be applied by spraying, brushing or rolling. The choice of tool will depend on the density of the product.

The water repellent is applied to the entire surface, while skips and large layering should be excluded. Works should be carried out at a limited temperature range - from +5 to +30 °C. You can notice the effectiveness of the composition only after 15, maximum 30 hours, before that it is recommended to protect the treated surface from the negative effects of ultraviolet radiation, wind and moisture.

Experts advise paying special attention to the end part of logs and boards. The water-repellent agent for wood protection should be applied in several stages, each layer is dried for about 30-180 minutes. If possible, it is best to immerse the material for some time in a container with a tool for deeper penetration into the wood structure. If you are building a facade made of wood, then it is simply necessary to use a moisture-proof composition.

Protection against insects, mold and mildew

Special treatment of wood is required when it is affected by adverse external phenomena such as temperature fluctuations, intense sunlight and precipitation. During such exploitation, destructive processes can start, the wood begins to rot, become covered with mold and fungus. If some zones have already been affected, and their area is too large, then it will not be possible to save the wooden structure. That is why experts recommend prophylaxis with antiseptics, which are sold in pasty or liquid form.

Wood preservative is not able to kill bacteria, it only prevents their further spread. If the reproduction of microorganisms is already active, then antiseptic treatment should be carried out only after the use of potent fungicides. Logs and logs must be protected by antiseptics, a protective coating is applied even before transportation, this is especially true for the time before long-term storage. Reprocessing is carried out after installation and stripping. On top of such products, paints and varnishes can be applied.

Ways to use antiseptics

Wood treatment with an antiseptic is carried out at temperatures above +5 ° C, it is important to choose a dry and clear day. The solution should be applied in several layers, each subsequent one is applied after absorption of the agent by the surface. However, drying should not be allowed. The number of processing cycles depends on the degree of contamination of the material. If you want to carry out preventive work, then the solution can be diluted with water using a ratio of 1: 3. Application should start from the top of the structure, gradually going down, this will eliminate the formation of smudges.

Different antiseptics are absorbed by the material at different rates. If you have to deal with raw wood, then the absorption will not be so intense. It may take many cycles to process the walls of a residential building, sometimes their number reaches six. Wood preservative should be purchased after wood analysis. To process pine boards, which have a natural protective layer, you will need less money than to impregnate a rounded log. It is important to choose the right remedy. Two different products are needed to process wood during transportation and an unfinished building that will be left for the winter. But for elements like lower rims, floor beams, as well as a log that will carry a power load, difficult-to-wash or non-wash-out solutions are needed that will protect the material throughout the entire service life.

Description of wood preservative "Senezh"

Treatment of wood from fungus and mold can be carried out using a preservative antiseptic, designed for critical structures operated in especially difficult conditions. The composition is difficult to wash out and can protect the material not only from mold and fungus, but also from decay, insects, and also blue. The surface after processing can be affected by atmospheric and soil moisture, the material is able to contact the soil, as well as organic waste. It is allowed to use wood products after such processing in a tropical humid climate.

The composition can be applied to previously processed or new beams, ceilings, beams, upper and lower crowns, poles, fences, fences, etc. However, this mixture is not recommended for surfaces that were previously coated with varnish, drying oil, paint or other film-forming materials, with water repellent properties.

Key benefits of using Senezh antiseptic

If you are going to treat wood from fungus and mold with the Senezh composition, then you should familiarize yourself with some of the advantages of this mixture, among them a long bioprotection period, difficult to wash out, high efficiency, as well as the ability to penetrate into wet wood. After applying the mixture, the strength of the material does not deteriorate, it retains its texture, does not lose its ability to breathe. With the help of this tool, you can stop the biological damage that has already begun.

Features of the antiseptic "Neomid 430"

"Neomid 430" is an indelible preservative antiseptic, which is able to provide increased protection for the material of different breeds. Products can be operated even in wet conditions, in contact with moisture and soil. You can use the mixture for outdoor and indoor work. It perfectly protects the material from damage by wood-destroying fungi, algae and mosses.

Such treatment of wood from fungus and mold can be carried out before the subsequent application of paints and varnishes. The composition is well chemically associated with wood, which increases the preservative properties. And for effective protection after treatment with an antiseptic, there is no need to apply paints and varnishes. The product is completely environmentally friendly, does not contain chromium and arsenic compounds.

Characteristics of the Tikkurila Vinha antiseptic

If you need to carry out outdoor work to protect wood, then you can choose an antiseptic brand "Vinha", which forms a protective water-repellent film. The tool is able to preserve the structure of wood, it perfectly protects not only from mold, but also from moisture. The coating is resistant to mechanical and atmospheric influences. "Vinha" is able to fight mold and blue. Such treatment of wood from fungus and mold can be carried out on new and previously treated surfaces. This antiseptic creates a semi-matt surface, and you can choose the color from the catalog.

Features of the antiseptic "Pinotex"

This is another wood treatment compound that has deep penetration properties as well as priming. This mixture is created on the basis of a new formulation, which is able to increase the antiseptic properties of the product. It is compatible with most paints and is intended to be used before painting or applying other wood preservatives. Eliminates the material from rot, blue and mold, is well absorbed, has bioactive substances in the composition and penetrates into deeper layers. Such antiseptic treatment of wood should be carried out on cleaned grounds when carrying out outdoor work. This may include:

  • doors;
  • facades;
  • fences;
  • window;
  • wood flooring;
  • fences.

Conclusion

If you want to choose a wood preservative that will reliably protect the material not only from fungus, but also from blue and mold, you need to pay attention to the durability and reliability of the product. It is also important to think about whether the composition will change the color of the wood; for some consumers, this property is fundamental. Protective wood treatment may require special equipment not only for application, but also for preparation. If the solution is planned to be used indoors, then it must be environmentally friendly.

The advantages of wooden buildings, interior and exterior finishes are overshadowed by the high probability of biological deterioration of the material.

Effective treatment of wood from fungus and mold can instill confidence in the reliability and safety of the structure. A large number of improvised and industrial means are known that can protect wooden structures from the reproduction of microorganisms.

Reasons for the appearance

Under natural conditions, trees, thanks to immunity, are successfully protected from the active spread of biocontaminants. Subsequently, the natural resistance of wood is on the wane, so it needs to be processed.

Additional infection can occur with improper storage and operation of structures. The following factors contribute to the appearance of mold on a tree:

  • high humidity;
  • temperature changes in a wide range of values;
  • inefficient ventilation;
  • freezing of the material;
  • poor waterproofing of the building;
  • high groundwater level.

Fungi can be brought into the room on shoes or clothes, so elementary sanitary rules should be observed at the entrance. Often the source of microbes is drywall, in which they multiply easily and quickly. In wet places, you need to install only special drywall sheets that are adapted for use in such conditions.

If the negative effects of the environment are completely eliminated or at least significantly reduced, fungal infections of wood can be completely avoided, freeing oneself from the need for processing.

mold types

There are several varieties of microorganisms, fungi, most often settling on wood. They differ in appearance, reproduction rate, toxicity of the products released, and the degree of deterioration of the material.

Note! It is easier to prevent the appearance of a fungus by pre-treatment with antiseptic impregnations or primers, paints with protective properties.

The most dangerous and aggressive is the black form of mold, all strains of which multiply rapidly, greatly destroy the tree, and can cause illness in humans. It is the hardest to remove.

White types of mold can appear not only on wooden products, but also on food products and various products. These fungi are removed faster and easier; they are less dangerous, although they can also cause irritation and allergies.

There are bluish types of mold that actively destroy wood materials. They are especially dangerous for load-bearing structures, where they cause through decay. To remove them, the wooden surface must be cleaned mechanically and bleaches should be used.

The performance characteristics of wood are significantly worsened by actinomycetes - bacteria similar in structure and properties to fungi. When infected with these microorganisms, which appear primarily in places of high humidity, the softening of the material occurs very quickly. The infection should be removed with strong antiseptics.

Folk remedies

Wood has been used by man for several millennia, which has led to the accumulation of many simple ways to combat biological spoilage. Folk remedies can be prepared at normal home conditions without large financial costs.

The most popular are the following compounds that can remove mold or prevent its occurrence:

  • resins (bituminous or based on turpentine and rosin) and oils (working off, drying oil);
  • ordinary silicate glue;
  • technical hrompek (potassium dichromate or bichromate);
  • aqueous solution of copper sulfate;
  • technical soda;
  • diluted bleach solution.

Each of the wood processing products has its positive and negative sides.

Resins and oils

The resin must be well heated before processing, brought to a homogeneous viscous state. Then the warm mass should be evenly distributed on the wood. The coating is suitable for processing the lower part of buildings in contact with the ground, it is used in sheds, cellars, on the basement of baths.

Bituminous resin cannot be called environmentally friendly. Recently, it has been rarely used, but bituminous mastics are produced on its basis. They are excellent water insulators, protecting the wood from the formation of fungus and mold.

Wood resins (with rosin) are used mainly for processing small wood products. When there were no synthetic materials, tar was widely used, but it has a strong specific smell, however, like bitumen.

One of the common means for treating wood from mold and subsequent decay is considered to be oil treatment. The boards that carry parts of wood structures are smeared with working off. Used oil dries for a long time, causes odor, harmful fumes, hides the texture of wood, but perfectly protects against pests, and allows you to effectively fight mold. Instead, you can process wood with boiled linseed, sunflower or other oil or drying oil (the same oil with additives).

silicates

To get rid of mold on wooden objects with a slight damage to the material by microorganisms, you can use an aqueous solution of silicates, such as ordinary glue or liquid glass. The product is harmless, easy to apply, but does not have a very long-lasting effect. It is very likely that the treatment of wood in this way will have to be repeated often.

Potassium bichromate

blue vitriol

An aqueous solution of copper sulphate, which can also be easily bought in stores for summer residents, is highly effective against fungi. An almost colorless powder in an amount of 100 g must be dissolved in a bucket of water, after which timber, boards, and any other wood materials should be treated with a ready-made bluish solution.

Bleach

Fungi are quite successfully destroyed when treated with bleach. The result will be visible immediately, however, you need to be prepared for the fact that the wood will lighten a little. Chlorine is a well-known bleach that destroys not only pollution, but also coloring pigments. Work with bleach should be carried out carefully, wearing gloves and protective clothing. If the treatment is carried out indoors, for example in the basement, you need to take care of good air exchange, install fans.

Special formulations for fungi

In case of severe wood damage, conventional folk remedies may not help; you will have to resort to the help of professionally made preparations, which are supplied to the market in sufficient quantities by industrial enterprises.

The drug "Senezh" has a universal effect, which removes fungi, microbes, spores and even insects. Before application, the wood surface must be well prepared, especially areas affected by black mold. To do this, it may be necessary to remove the top layer with a grinder, a stiff brush or a knife.

Note! All affected shavings should be carefully burned so that particles of biodirt do not spread into the surrounding area.

It is advisable to wash the cleaned tree well and dry it naturally, then process it. The drug is firmly fixed on wood, suitable for processing any external surfaces.

"Neomid 430" shows high efficiency, which successfully destroys fungi, moss, microbes. The composition is non-toxic, well absorbed by the soil, without causing damage to it. The substance protects the wood from moisture, allows subsequent coating with varnishes or paints.

Vinha means creates a polymer film, it is recommended for processing external surfaces. The composition slightly changes the color of the wooden material, it is convenient to apply it to previously treated surfaces. The drug protects against biological organisms, mechanical influences, moisture vapor.

Pinotex has multifunctional properties, which is easily absorbed by the wood base, while performing priming. Processing is carried out on the outer parts of clean, prepared wood, which is subsequently varnished.

Paints and varnishes have a protective effect, which should be applied to a cleaned, disinfecting base. Many types of products prevent destruction not only from microorganisms, but also from sunlight, moisture, dust.

Processing features

The expected effect will be achieved only in the case of competent application of antifungal impregnation. An important condition is compliance with the temperature regime - work should not be carried out when the thermometer readings are less than 5 ° C. It's great if it's sunny and warm outside. Wood must be prepared, completely cleaned of dirt, dust, remnants of old coatings. After distributing the first portion, you should not rush, you need to wait until everything is well absorbed, only after that you can continue to work, apply the next layer.

Solutions are distributed from top to bottom - this way the surface will look better. When choosing an antiseptic, it is useful to carefully examine the tree, assess its condition, and choose a drug that is suitable for a particular situation. If there is no fungus and mold, and the treatment is carried out for a preventive purpose, the purchased reagents can be slightly diluted with a solvent.

The outer surfaces of wood are at great risk, therefore, they are subject to mandatory multi-stage processing. The internal parts of buildings are usually affected to a lesser extent.

With special care should be carried out the processing of load-bearing elements that can withstand heavy loads. For these purposes, it makes sense to use the most concentrated and effective mold formulations.

Natural wood is, of course, the leader among materials for building a house. The absolute environmental friendliness of wood, high aesthetics and simply unlimited possibilities of use - all this reveals the secret of the popularity of the material for many centuries. However, wood is not without its drawbacks. First of all, this is a weak level of resistance to negative external factors. That is why the question of how to treat wood and boards from decay is extremely important for all connoisseurs of natural and natural.

How to treat wood and boards from decay

The processes of biological destruction of wood, or rotting, is a rather unpleasant process, which, unfortunately, is inherent in this material. The processes of decay begin to occur and accelerate:


  • At high air humidity;
  • At high humidity of the feedstock;
  • When there is no good ventilation;
  • With temperature fluctuations;
  • When condensation accumulates;
  • During the freezing of the material;
  • Frequent contact with damp soil.

It is best to apply preventive measures even during the harvesting and storage of wood.

During storage, the moisture content of wood decreases, so it is advisable to use a tree that has lain felled. Previously, this technique was used: they cut down a tree in the winter in order to start construction in the summer. Currently, there is no need to withstand such a long period. Technological measures are used to protect wood.

Wood decay treatment involves protecting the wood from moisture penetrating through the pores. This can be done with a good waterproofing layer, from the moisture contained in the atmosphere - by painting with special paint and a good roof. High-quality thermal insulation and a vapor barrier coating, pre-equipped ventilation will protect against condensates.

In addition, it is necessary to place the wooden structure of the building much higher than the ground level. In addition, the ends of the log house walls should be sheathed with boards and treated with a special tool. But first things first.

In order for a wooden product to please you for many years with aesthetic characteristics and a reliable design, experts advise preventive processing of the material at the manufacturing stage.

Means for treating wood from decay

Modern methods of combating decay processes involve processing with special means:

  • The ends can be processed with Senezh TOR;
  • The walls can be covered with a special Senezh NEO product, which will protect it from moisture penetration;
  • It is also possible to apply a finishing layer of finishing like Senezh Akvadecor.

Attention. Recently, negative reviews about Senezh products have become more frequent. When choosing funds, consult several points of sale.

All these methods in their complex combination will help protect the wood from decay. It is up to you to decide which impregnation against wood decay is better to choose, you need to be based on the type of wood and its operating conditions.

End processing Senezh TOR video:

Fire retardant wood treatment

Wood, unfortunately, is a very combustible material. You can protect it from fire by using special means. They are best combined with the treatment of wood with an antiseptic. The best conditions for wood impregnation are:

  • Low moisture content of wood (up to 25%);
  • The temperature of the impregnation itself is about 60-85 ° C;
  • Application of impregnation on specially made tattoos.

Previously, buildings in the private sector were not treated for fire. Currently, such preventive treatment is practiced. In such cases, it is possible to cover the surface with special refractory materials, often a simple impregnation with saline solutions is used. In the second case, when fire hits the surface, the salt begins to melt and creates a film that can stop the fire.

Fire fighting equipment is divided into:

  • Passive ones create a film on the surface of the tree. A good protection against fire is impregnation with compounds formed on the basis of sulfates and phosphates of ammonium, boric acid and borax. The advantages of borax and boric acid are that they have an additional antiseptic effect. When fire hits the surface, the salt begins to melt, creating a film that can stop the fire.
  • Active agents not only block the access of oxygen. BUT and contribute to a decrease in temperature, emit non-combustible gases, prevent the release of resins and combustible gases.

You can prepare a wood impregnation agent at home according to the recipe given in the video.

Means for protecting wood from fires, or fire retardants, can be:

  • Senezh OGNEBIO;
  • Neomid 450;
  • Pirilax;
  • Valty Pokhyusti.

Processing is carried out by means of the above means in several layers.

  • Antiseptic
  • Conservation

Both methods involve the use of special chemicals. Antiseptic means applying a special substance - antiseptic manually, with a brush or roller. And conservation - only in the factory by soaking raw materials in special baths, as well as autoclaving.

There are several types of antiseptics. Their use is mandatory in cases where mold has already begun to appear. They are:

  • Water soluble. Completely eco-friendly, do not have an unpleasant odor and dry quickly. Ideal for wall, floor, ceiling, window and door surfaces. It is not recommended to use them for a tree that has constant contact with water.
  • Water repellent. They have a rather sharp odor, but a deeper level of penetration. Excellent for use in baths, saunas, basements and cellars.
  • Flying basis. They cover the wood with a thick film that takes a long time to dry. Perfectly are suitable both for interior, and for front processing.
  • Oil based. They are water insoluble and also form a strong film. They can only be used to impregnate dry wood. Not recommended for residential areas.
  • on a combined basis. Great for any kind of wood. They have not only antiseptic, but also fire and bioprotective properties.

Specific funds

The following remedies are excellent for protecting wood from mold:

  • "Wood Doctor" Suitable for all types of wood, regardless of the level of damage. Non-toxic and completely safe.
  • "Bioks" - belongs to the class of protective-textural coatings. It protects the wood from mold, and is also able to emphasize the texture of the wood. It can be both colored and transparent.
  • "Biosept" - is considered one of the best means. It can be used both inside and outside. It is based on new generation biocides. The tool is absolutely environmentally friendly, reliable and safe.
  • "Aquatex" is great for planed and sawn surfaces (for example, doors, poitus, platbands and much more).
  • "Pinotex" is also great for almost any type of wood, does not fade and provides excellent protection.
  • "Elkon" there are several varieties that differ in their characteristics. It is applied outside and in rooms. It is used for drawing on freshly processed material.
  • Carticide compound. You can get acquainted with its characteristics by watching the video.

Recommendations for choosing means for treating wood from decay

Before choosing an impregnation in the store, depending on the operating conditions of the wood, pay attention to the following characteristics:

    Does the impregnation cause corrosion of the metal. This quality must be taken into account if further connection with metal fasteners is expected.

  1. Duration of impregnation on wood.
  2. How deeply the impregnation penetrates into the wood. Is it suitable for rooms with high humidity.

    How environmentally friendly is the impregnation? Is it possible to use it inside residential premises or places where animals live.

    Is the impregnation designed to counteract the appearance of fungus.

  3. Is it possible to use this impregnation in rooms with temperature changes.
  4. Does not emit an unpleasant odor from the treated surface during temperature changes or high humidity.

These questions can be asked to a representative of the trading organization. All information is available in the instructions attached to the materials.

Coating rules

In order to apply a protective coating, special knowledge and skills are not required. You can do this work on your own. Before starting work, pay attention to the following characteristics:

  1. Stock up on protective equipment such as a mask, gloves and goggles.
  2. In the process, you will need the following tools: a brush, a metal brush, detergents, sandpaper and a scraper.
  3. Before starting work, inspect the wood itself. Cracks on its surface indicate the need for processing.
  4. The optimal time for work is considered to be a temperature of 20-25 0 C. It is allowed to start work at 10 0 C, and not higher than 40 0 ​​C. It is strictly forbidden to work out a frozen tree.
  5. If the wood has previously been treated or coated, all traces on the surface must be cleaned and removed.

Perform preparatory work and processing in the following sequence:

  1. Clean the wood of dirt and old coatings with a solvent or scraper.
  2. Treat the surface with sandpaper and remove dirt with a detergent solution.
  3. Create conditions for the wood to dry completely.
  4. When applying protective agents, pay special attention to end surfaces, joints, cuts.
  5. In the case of applying a second layer of work, perform at least three hours later.
  6. It will take at least 48 hours for the coating to dry completely. The time may vary depending on the temperature, humidity in the room.

Processing a log house with an antiseptic video

Folk methods of wood protection

There are also folk methods for protecting wood without chemistry from fires. This is the preparation of a solution based on clay, salt and water. The proportion of its preparation is as follows:

  • Clay - 75 parts;
  • Salt - 5 parts;
  • Water - 20 parts.

All this mixture is diluted to a thick mass and applied in several layers. Also among folk remedies, a coating prepared on the basis of superphosphates is popular. The mixture is made according to the ratio of water and superphosphate 25 to 75. It is applied in a similar way in two or three layers.

Important: such a coating tends to harden after 5-6 hours, so the prepared composition must be used during this period, otherwise it will become unusable.

The problem of how to treat wood and boards from decay has been of interest to people for a long time. And over the years, many folk methods have accumulated to protect wood from biodegradation. So, what to do with the tree so that it does not rot:

Conclusion

Protective equipment is selected individually. Processing of terraces, arbors, rafters and rough floors is carried out using hard-to-remove solutions. If there is very high humidity in the premises, then products with an ultra-reliable level of protection are used. You should also consider:

  • room temperature;
  • Operating conditions;
  • Validity period of funds;
  • Exterior finish.

You need to choose the means and methods based on your own needs and preferences.


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Wood is a natural material widely used in construction and everyday life. Wood is durable and beautiful until representatives of microflora settle on its surface - mold fungi and other unwanted aliens of this kind. To prevent or remove such a phenomenon, the surface of wooden structures and products is treated with various compositions of natural and industrial origin.

Causal relationships: why mold appears on wood

The reproduction of fungi on the surface of wooden products is the main enemy of the material. Under what conditions do they appear?

  1. High humidity contributes to the awakening and development of dormant spores of the infection, and subsequently to the destruction of the wood structure;
  2. Stagnant air in the absence of ventilation;
  3. Sharp temperature changes and, as a result, the formation of condensate on the surface, followed by the implementation of point 1;
  4. Freezing of wet wood leads to deep penetration of harmful spores.

Where does mold come from?

  • It is located on the bark of a tree and does not develop during its lifetime due to tree immunity;
  • When products come into contact with the ground;
  • Air infection.

Pre-protection reduces the risk of infection:

  • Black mold has many strains that cannot be distinguished on their own. The general characteristics of the species include excessive activity, the ability to quickly destroy and damage the affected material.

It poses a serious danger to humans: spores, if they enter the respiratory tract, cause allergic reactions, irritation, and poisoning. To get rid of it, you will need modern methods of exposure - the species is very resistant to various influences.


Fighting methods

No matter how you ventilate the room, the risk of mold on the walls and floors is always present. To accurately eliminate it, there are many methods and means of natural and synthetic.

Folk remedies

Known since ancient times, folk methods of combating wood damage are gentle and effective, but for a short time.

Method 1. Resin

Against fungal spores in the house, ordinary resin, heated before application, helps.

  • Effective;
  • safely;
  • cheap.
  • The surface remains sticky;
  • The resin is viscous, difficult to apply - it needs to be stretched.

Method 2. Silicate glue

A folk remedy for prevention is ordinary silicate glue diluted to a state of medium viscosity. They treat the surfaces of wooden products and coatings 1-2 times.

Plus: safe hypoallergenic composition.

Minus: short-term effect, not suitable for some types of mold.

Method 3. Potassium biochromate

5% potassium biochromate solution and 5% sulfuric acid concentrate are mixed in equal proportions. These reagents can be purchased at any store or chemical and fertilizer manufacturing and distribution company, sometimes at garden fairs.

The resulting solution is treated with boards and soils adjacent to the structures. The method is effective, but dangerous for the soil.

Method 4. Vinegar and soda

To get rid of an already existing focus, sprinkle the place with soda and spray it with 9 or 6% acetic acid from a spray bottle, you can just pour it gently. A violent oxidative reaction burns all the formed fungal colonies.

Method 5. Salt, acid and boiling water

We prepare the solution: 5 liters of hot boiled water + 1 kg of table salt + 50 g of boric acid from a pharmacy. Mix thoroughly, process the tree.

Impregnation helps fight many types of fungi and mold.

Method 6. Copper sulfate

The tool is in stock with many summer residents.

Take 100 grams of dry matter and dilute it in 10 liters of water. The boards should be treated with a solution, then dried and used for construction.

Method 7. Whiteness

Chlorine bleach cleans the fungus well, but keep in mind that the liquid brightens the wood.

In baths and saunas, it is possible to remove fungi only with folk remedies. To cure the affected area, we clean the boards from the fungus with soda, fill it with vinegar, wait for the end of the reaction. Then we wash off the reagents with water and cover the area with tea tree oil diluted in warm water.

As already mentioned, folk remedies are not always effective and safe. They are used when there are no special tools at hand, and the problem needs to be solved in a short time. For a thorough approach, modern means of protection are used.

Modern compositions

The fight against unwanted neighbors on walls, floors and ceilings using modern protection methods is the most effective, durable and reliable.

All drugs are divided into 3 groups according to the method of application and action:

  1. Paints with opaque or translucent effect;
  2. Lucky;
  3. Antiseptics.

Paints and varnishes, when used in the house, perform 2 functions at once: they help remove mold and participate in the decoration. They create a water-repellent coating that protects the tree for a long time.

Treatment with antiseptics is the main way to fight against the colonization of fungi. It can be superficial or deep.

  1. Surface treatment of boards is carried out right in the house during construction or repair work. Sometimes lumber suppliers provide lumber already processed in this way.
  2. Deep impregnation by conservation method allows you to remove all spores from the surface of the product and to the depth. Penetration of chemical compounds occurs under autoclave conditions with temperature changes.

Varieties of antiseptics

Synthetic agents against tree fungus are distinguished by composition and effect of action:

To prevent the appearance or get rid of the existing fungus in the house, it is necessary to choose the right effective composition of the antiseptic or protective coating. When choosing, consider:

  • Humidity of the room;
  • The presence of contact with the ground;
  • air temperature;
  • Operating conditions of the product and surface.

The home climate is well tolerated by soluble or water-repellent solutions, in dry rooms it is possible to limit the use of paint and varnish coatings. For the street, you should choose more rigid means.

Carrying out work

The fungus on the tree can be prevented or removed.

Pre-protection

To create a protective layer on a new product, during production or before construction, a wooden object is coated with varnishes, paints, and surface antiseptics. Application is carried out on a dry, clean surface. Wait for it to dry and repeat the operation if necessary. Application is carried out:

  • Tassels;
  • rollers;
  • Sprayers.

wood treatment

To destroy the existing fungus, it is not necessary to dismantle the product. If the mold has not grown and has not had time to spoil the structure of the wood, it is enough to carry out a complex of medical works:

  1. Clean the affected area with a spatula, brush. Hands must be protected with gloves.
  2. Re-prime the surface with deep penetration compounds or impregnate with an antiseptic.
  3. Apply top coat.

After using synthetic agents, the lesion does not resume. As a rule, chemicals kill all the microflora present on the surface of the tree.

  • Ways to deal with decay
  • Classification of solutions
  • Rules for applying protective equipment
    • Note

Wood is the main material suitable for construction and manufacturing of various structures.

Mold on wood building materials is their main enemy - it has a destructive effect on wooden products, causing them to rot.

It is distinguished by its environmental friendliness, versatility, has a beautiful appearance. In addition to the positive characteristics, wood also has its drawbacks, namely, it is easily exposed to the negative conditions of external environmental factors.

How to treat wood from mold? This question worries many who have used such material to build a house or other structure. Mold is the main enemy of wood and acts destructively, provoking rotting. There are a number of reasons why it is rapidly spreading:

  • temperature difference;
  • oxygen stagnation;
  • high air humidity (up to 85%);
  • freezing and moisture content of raw materials (over 20%);
  • continuous contact with the ground;
  • the appearance of condensation.

Ways to deal with decay

Scheme for solving the problem with mold.

In order for the wood not to be affected by the fungus, it is necessary to carry out preventive methods at the stage of manufacture and storage. It is recommended to dry the material thoroughly during the year, since the humidity of the sawn trunks varies depending on the time of year.

How to process a tree? Currently, there are many ways to get rid of the fungus. For example, wood can be protected from capillary moisture due to good waterproofing. Special paints and a high-quality water-resistant roof will protect the wooden structure from atmospheric moisture. In order to eliminate the accumulation of condensate, it is necessary to correctly place the heat and vapor barrier.

To prevent the appearance of a fungus, a wooden structure is placed on a concrete foundation, which rises above the ground. In this case, you need to take care of the installation of the drainage system and the blind area. You should not build a wooden house near tall trees, as they interfere with the natural drying of the structure.

An effective way to prevent mold is to finish the end wall with boards. For prevention, it is recommended to conduct an annual inspection of a wooden structure in order to avoid further problems. If a fungus is suspected, then a sample of the wood must be taken to determine the moisture content and density of the material.

If the beam is affected by mold, then its physical and mechanical data will be worsened. The density of such a bar at a moisture content of 20% will be 3.5 times less than healthy, and the hardness will be 25 times lower. Thus, due to a decrease in hardness and density, walls can move, door and window openings can be skewed, and this, in turn, leads to loosening of the house. In this case, the process of mold spreading can be interrupted only by chemicals.

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Elimination of the fungus with the help of folk remedies

This problem has worried people since ancient times, so today there are many different ways to deal with mold.

Folk remedies for the fight against fungus.

  1. silicate adhesive. This method will help protect the wood from adverse factors. You will need to dilute the glue with water until a certain consistency is obtained and spread the mixture on the problem area.
  2. Soda, vinegar. Soda is sprinkled on areas affected by mold, and then vinegar is sprayed onto it with a spray bottle.
  3. Potassium bichromate. Take a 5% solution of potassium bichromate and mix with 5% sulfuric acid (1:1). With this mixture, you can process the walls of the house, as well as the soil.
  4. Copper vitriol. 10 liters of water are taken, about 100 g of vitriol is dissolved in it. Spray walls, ceilings and other wooden structures with the mixture.
  5. Boric acid and salt. Take 5 liters of water, dissolve 50 g of acid and 1 kg of salt in it. Mix everything and process wooden structures with a mixture at intervals of 2 hours.
  6. Resin. This method is suitable for processing wooden structures outside the home.
  7. Gently scrub the affected area with liquid soap and water.

These methods are suitable for spraying wood that is still slightly affected by the fungus. Otherwise, more drastic measures are needed.

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Modern ways to destroy mold

Currently, there are two effective methods of fighting the fungus:

Optimal tree protection scheme.

  1. Conservation. This method involves processing the tree with special means that have a long poisoning effect. As a rule, this method is suitable for factory conditions, where the wood is soaked in steam baths or diffusion impregnation is used.
  2. Antiseptic. It implies the treatment with chemicals, which is allowed to be carried out independently with a brush or roller.

There is a wide variety of varnishes, antiseptics, which are aimed at various goals for the elimination of mold.

Means made on the basis of white spirit are quickly washed off, so they are not suitable as a treatment for structures located on the ground. In this case, water-repellent antiseptics will be the best option.

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Classification of solutions

As a rule, antifungal compounds are divided into:

  • antiseptics;
  • paints;
  • varnishes.

Paints - have a protective effect against moisture. If wood processing takes place outside the home, it is recommended to use varnishes, which include organic solvents. For processing at home, water-soluble paints are suitable. A huge palette of various colors is on sale, so everyone can easily find their own shade based on their own wishes.

Varnishes - designed for outdoor use. They contain fungicides that prevent the growth of mold and prevent the tree from fading and cracking. Lacquers create a protective coating in the form of a transparent film.

Antiseptics - are a radical tool in the fight against mold. They are divided into the following types:

  1. Water-repellent - have a rather pungent odor and penetrate deep into the wood. It is recommended to use for baths, cellars.
  2. Water-soluble - no smell, quick drying (about 2 hours). They contain silicon fluorides, boric acid, zinc chloride. The products are sold in powder and solution form. It is recommended to apply for processing of ceilings, walls, windows. Should not be used on wood that is in constant contact with moisture.
  3. Solvent based - recommended for interior and exterior applications. Drying takes about 12 hours.
  4. Combined - have antifungal and anti-combustible properties.
  5. Oil - recommended for processing dry wood. They form a fairly dense film on the surface. Suitable for processing poles, sleepers.

Antiseptics are classified according to the level of absorbency:

  • covering - penetrate quite tightly into the pores of the tree, thereby changing the color of the texture;
  • glazing - do not create a film on the wood, do not change the color, surface texture.

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Rules for applying protective equipment

Materials and tools required for processing:

  • mask;
  • glasses;
  • gloves;
  • scraper;
  • wire brush or sandpaper;
  • detergent;
  • varnish or paint.

This work does not require special knowledge, but you will have to adhere to certain conditions. Protective clothing should be worn before work to avoid contact with harmful substances in the eyes and on the skin.

Instruction:

  1. Solvent or scraper should clean the work surface from old paint, dirt.
  2. Treat the wood with sandpaper and wash it with warm water and detergent.
  3. Allow surfaces to dry completely.
  4. Apply protective agents, starting from the affected areas, ends, cuts.
  5. If necessary, you can re-apply an additional layer of product after 3 hours.
  6. Final drying takes an average of 48 hours. It mainly depends on the humidity of the air, the temperature in the room.

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Note

Protective solution must be selected strictly individually. To process the terrace, subfloor, rafters, it is recommended to use hard-to-wash compounds that can last up to 35 years.

Premises with high humidity need enhanced protection, as there is a constant temperature difference. In this case, antiseptics can last up to 12 years.

Varnishes are suitable for fences and doors, which will ensure uniform shrinkage of the tree and reduce its cracking.

Fire retardant solutions can last up to 7 years. This will depend on the climate of the area and the operation of the premises.

If cracks have formed on the surface of the wood, this means that it is urgent to change the protection. In the future, it is recommended to alternate antiseptic solutions.

Thus, it is necessary to constantly carry out preventive inspection of wooden structures in order to avoid the appearance of fungus on them, since in the future this can lead to the destruction of the structure. In order to eliminate the mold that has appeared, it is necessary to treat the wood with an antiseptic, which will help get rid of the problem and help preserve wooden premises and structures for many years.

Natural wood is, of course, the leader among materials for building a house. The absolute environmental friendliness of wood, high aesthetics and simply unlimited possibilities of use - all this reveals the secret of the popularity of the material for many centuries. However, wood is not without its drawbacks. First of all, this is a weak level of resistance to negative external factors. That is why the question of how to treat wood and boards from decay is extremely important for all connoisseurs of natural and natural.

How to treat wood and boards from decay

The processes of biological destruction of wood, or rotting, is a rather unpleasant process, which, unfortunately, is inherent in this material. The processes of decay begin to occur and accelerate:

  • At high air humidity;
  • At high humidity of the feedstock;
  • When there is no good ventilation;
  • With temperature fluctuations;
  • When condensation accumulates;
  • During the freezing of the material;
  • Frequent contact with damp soil.

It is best to apply preventive measures even during the harvesting and storage of wood.

During storage, the moisture content of wood decreases, so it is advisable to use a tree that has lain felled. Previously, this technique was used: they cut down a tree in the winter in order to start construction in the summer. Currently, there is no need to withstand such a long period. Technological measures are used to protect wood.

Wood decay treatment involves protecting the wood from moisture penetrating through the pores. This can be done with a good waterproofing layer, from the moisture contained in the atmosphere - by painting with special paint and a good roof. High-quality thermal insulation and a vapor barrier coating, pre-equipped ventilation will protect against condensates.

In addition, it is necessary to place the wooden structure of the building much higher than the ground level. In addition, the ends of the log house walls should be sheathed with boards and treated with a special tool. But first things first.

In order for a wooden product to please you for many years with aesthetic characteristics and a reliable design, experts advise preventive processing of the material at the manufacturing stage.

Means for treating wood from decay

Modern methods of combating decay processes involve processing with special means:

  • The ends can be processed with Senezh TOR;
  • The walls can be covered with a special Senezh NEO product, which will protect it from moisture penetration;
  • It is also possible to apply a finishing layer of finishing like Senezh Akvadecor.

Attention. Recently, negative reviews about Senezh products have become more frequent. When choosing funds, consult several points of sale.

All these methods in their complex combination will help protect the wood from decay. It is up to you to decide which impregnation against wood decay is better to choose, you need to be based on the type of wood and its operating conditions.

End processing Senezh TOR video:

Fire retardant wood treatment

Wood, unfortunately, is a very combustible material. You can protect it from fire by using special means. They are best combined with the treatment of wood with an antiseptic. The best conditions for wood impregnation are:

  • Low moisture content of wood (up to 25%);
  • The temperature of the impregnation itself is about 60-85 ° C;
  • Application of impregnation on specially made tattoos.

Previously, buildings in the private sector were not treated for fire. Currently, such preventive treatment is practiced. In such cases, it is possible to cover the surface with special refractory materials, often a simple impregnation with saline solutions is used. In the second case, when fire hits the surface, the salt begins to melt and creates a film that can stop the fire.

Fire fighting equipment is divided into:

  • Passive ones create a film on the surface of the tree. A good protection against fire is impregnation with compounds formed on the basis of sulfates and phosphates of ammonium, boric acid and borax. The advantages of borax and boric acid are that they have an additional antiseptic effect. When fire hits the surface, the salt begins to melt, creating a film that can stop the fire.
  • Active agents not only block the access of oxygen. BUT and contribute to a decrease in temperature, emit non-combustible gases, prevent the release of resins and combustible gases.

You can prepare a wood impregnation agent at home according to the recipe given in the video.

Means for protecting wood from fires, or fire retardants, can be:

  • Senezh OGNEBIO;
  • Neomid 450;
  • Pirilax;
  • Valty Pokhyusti.

Processing is carried out by means of the above means in several layers.

  • Antiseptic
  • Conservation

Both methods involve the use of special chemicals. Antiseptic means applying a special substance - antiseptic manually, with a brush or roller. And conservation - only in the factory by soaking raw materials in special baths, as well as autoclaving.

There are several types of antiseptics. Their use is mandatory in cases where mold has already begun to appear. They are:

  • Water soluble. Completely eco-friendly, do not have an unpleasant odor and dry quickly. Ideal for wall, floor, ceiling, window and door surfaces. It is not recommended to use them for a tree that has constant contact with water.
  • Water repellent. They have a rather sharp odor, but a deeper level of penetration. Excellent for use in baths, saunas, basements and cellars.
  • Flying basis. They cover the wood with a thick film that takes a long time to dry. Perfectly are suitable both for interior, and for front processing.
  • Oil based. They are water insoluble and also form a strong film. They can only be used to impregnate dry wood. Not recommended for residential areas.
  • on a combined basis. Great for any kind of wood. They have not only antiseptic, but also fire and bioprotective properties.

Specific funds

The following remedies are excellent for protecting wood from mold:

  • "Wood Doctor" Suitable for all types of wood, regardless of the level of damage. Non-toxic and completely safe.
  • "Bioks" - belongs to the class of protective-textural coatings. It protects the wood from mold, and is also able to emphasize the texture of the wood. It can be both colored and transparent.
  • "Biosept" - is considered one of the best means. It can be used both inside and outside. It is based on new generation biocides. The tool is absolutely environmentally friendly, reliable and safe.
  • "Aquatex" is great for planed and sawn surfaces (for example, doors, poitus, platbands and much more).
  • "Pinotex" is also great for almost any type of wood, does not fade and provides excellent protection.
  • "Elkon" there are several varieties that differ in their characteristics. It is applied outside and in rooms. It is used for drawing on freshly processed material.
  • Carticide compound. You can get acquainted with its characteristics by watching the video.

Recommendations for choosing means for treating wood from decay

Before choosing an impregnation in the store, depending on the operating conditions of the wood, pay attention to the following characteristics:

    Does the impregnation cause corrosion of the metal. This quality must be taken into account if further connection with metal fasteners is expected.

  1. Duration of impregnation on wood.
  2. How deeply the impregnation penetrates into the wood. Is it suitable for rooms with high humidity.

    How environmentally friendly is the impregnation? Is it possible to use it inside residential premises or places where animals live.

    Is the impregnation designed to counteract the appearance of fungus.

  3. Is it possible to use this impregnation in rooms with temperature changes.
  4. Does not emit an unpleasant odor from the treated surface during temperature changes or high humidity.

These questions can be asked to a representative of the trading organization. All information is available in the instructions attached to the materials.

Coating rules

In order to apply a protective coating, special knowledge and skills are not required. You can do this work on your own. Before starting work, pay attention to the following characteristics:

  1. Stock up on protective equipment such as a mask, gloves and goggles.
  2. In the process, you will need the following tools: a brush, a metal brush, detergents, sandpaper and a scraper.
  3. Before starting work, inspect the wood itself. Cracks on its surface indicate the need for processing.
  4. The optimal time for work is considered to be a temperature of 20-250C. It is allowed to start work at 100C, and not higher than 400C. It is strictly forbidden to work out a frozen tree.
  5. If the wood has previously been treated or coated, all traces on the surface must be cleaned and removed.

Perform preparatory work and processing in the following sequence:

  1. Clean the wood of dirt and old coatings with a solvent or scraper.
  2. Treat the surface with sandpaper and remove dirt with a detergent solution.
  3. Create conditions for the wood to dry completely.
  4. When applying protective agents, pay special attention to end surfaces, joints, cuts.
  5. In the case of applying a second layer of work, perform at least three hours later.
  6. It will take at least 48 hours for the coating to dry completely. The time may vary depending on the temperature, humidity in the room.

Processing a log house with an antiseptic video

There are also folk methods for protecting wood without chemistry from fires. This is the preparation of a solution based on clay, salt and water. The proportion of its preparation is as follows:

  • Clay - 75 parts;
  • Salt - 5 parts;
  • Water - 20 parts.

All this mixture is diluted to a thick mass and applied in several layers. Also among folk remedies, a coating prepared on the basis of superphosphates is popular. The mixture is made according to the ratio of water and superphosphate 25 to 75. It is applied in a similar way in two or three layers.

Important: such a coating tends to harden after 5-6 hours, so the prepared composition must be used during this period, otherwise it will become unusable.

The problem of how to treat wood and boards from decay has been of interest to people for a long time. And over the years, many folk methods have accumulated to protect wood from biodegradation. So, what to do with the tree so that it does not rot:

Conclusion

Protective equipment is selected individually. Processing of terraces, arbors, rafters and rough floors is carried out using hard-to-remove solutions. If there is very high humidity in the premises, then products with an ultra-reliable level of protection are used. You should also consider:

  • room temperature;
  • Operating conditions;
  • Validity period of funds;
  • Exterior finish.

You need to choose the means and methods based on your own needs and preferences.

The processing of wood fibers is aimed at protecting structural elements from fire, the penetration of harmful spores, moisture and insects. Walls, roofs and coatings made of such materials are treated with combined agents, including antiseptics or single-component preparations aimed at combating one harmful factor. The frequency of applying protection is from two to seven years, depending on the climatic zone. The heating factor is important. Those. in non-residential, unheated premises, the level of dampness increases, and therefore it becomes favorable for the life of fungi, etc. Such foci appear quickly and it is necessary to identify the danger in time, since it poses a threat to the integrity of structures and the health of its users.

Mold on wooden surfaces

The infected surface changes color: from blue to purple spots with different localization. The air around such walls / coverings becomes sticky, with a stale smell. The growth rate of mold colonies is high: in a week, stains can cover the entire area of ​​\u200b\u200bthe product and spread to other objects around.
"Household" blue mold is dry to the touch and is not recognized as dangerous. Beams, beams, boards struck by it remain strong. But "rot" or putrefactive fungus is considered a serious problem. Its spores penetrate deep inside, making the material dry and loose. The “rot” is immediately different: a brown spot, wet and sticky with a characteristic subsidence of the fibers. Material affected by such mold must be disposed of.

Causes of mold infestation

  • Failure to comply with the rules for the exploitation of wood.
  • Lack of air circulation.
  • Poor-quality raw materials, naturally infected in the place of growth.
  • Introduction of spores through the air, household items, clothing or pets.
  • Hot humid climate (temperature regime from five to forty degrees Celsius and relative humidity from 60%).

Professional builders do not exclude the possibility of infection due to an incorrectly erected foundation or location of the house. Nearby underground springs and forests increase the chance of buildings being damaged by fungus and mold. You can protect yourself by seeing the danger in time, choosing the right land and (most importantly) treating wooden materials with protective impregnations.

Folk recipes to protect wood from mold and mildew

The same impregnations and methods that our grandfathers talked about in the evenings before building baths or sheds.

  1. Processing saw cuts with bee products. Propolis and wax were mixed with oil and rubbed on boards of any size. Now it is a mega-expensive method, but its effect lasts up to 50 years.
  2. Previously, lime (slaked), salt and vitriol were mixed and the wood was soaked. When using such an impregnation, the timber dried out greatly, but was protected from the effects of the fungus for a quarter of a century.
  3. Resin, resin, tar are the best fungus remedies now. They are used for cladding, but they threaten to flare up quickly in the event of a fire. "Homemade" often replace these ingredients with used oil, which is not inferior in its protective properties to resin.
  4. A copious soak in white, vinegar or blue vitriol. Not particularly long term, ideal for small scale structures or parts.
  5. The fungus that has already manifested itself is sprayed with a solution of salt and boric acid.
  6. A stain of mold can be sprinkled liberally with soda, then extinguish it with vinegar. The board is dried in an open source of light.
  7. silicate adhesive. They tightly fill the wood in several layers. This is a short-lived method of protection. Plus, especially resistant fungus colonies can actively develop under the crust of glue.

Preservation and application of antiseptic

Modern science offers more ergonomic and efficient means of processing both deep and surface impregnation. Preservation involves soaking in antiseptics.
In special baths, already cut timber is soaked in protection solutions. Under their influence, the cells and pores of the tree are disinfected and accumulate a pickling composition. Further, the products are dried for more than 72 hours.
An antiseptic can be temporary (for transportation), universal, combined (fire protection) and finishing.

Temporary antiseptics

Temporary (intermediate) impregnations are resistant to washing out, can be applied with an airbrush or brush. They protect the wood from initial infection with spores. Such as PROSEPT BIO, SikaGard 717W.

Universal antiseptics

Universal products are difficult to wash out, protect against all types of mold and fungus. But they include toxic substances and stain surfaces. For example, PROSEPT ULTRA, PROSEPT UNIVERSAL, RadugaMaler, Senezh Ultra, Ceresit CT.

Combined antiseptics

Combined impregnations consist of eco-materials, their effect is durable and they are suitable for processing at any stage of forest use. Additionally, wood is protected from rapid ignition and insect attack. For example, PROSEPT OGNEBIOPROF, BFA, Senezh, Tikkurilla.

Finishing means

Varnishes, paints, enamels, decorative mastics and films that protect against natural moisture and UV rays. Suitable for external surfaces (roof peaks, barn walls, saunas, etc.). Excellent products "PINOTEX ULTRA", "Düfatex Aqua Antiseptik".

Rules for applying funds from fungus and mold

In industrial preparation and preservation, toxic chromium is often used, it will guarantee safety for solid wood products. But for non-industrial areas in impregnations, the active substance is the bactericides pentachlorophenol and sodium pentachlorophenolate. But despite their relative safety, there are a number of operating rules.

  1. The person carrying out the treatment must wear a respirator, gloves, goggles and overalls.
  2. The room must be in a state of ventilation while the employee is there.
  3. Before starting actions to combat the fungus, the humidity level must be normalized (no more than 30%).
  4. All surfaces and materials must be cleaned and dried.
  5. Heavily damaged areas and foci should be removed.
  6. The funds are applied in several layers and must dry for at least a day.
  7. The solution is applied over large areas until they are completely wet.

Features when processing the surface of wood *

Timber that will be constantly exposed to atmospheric precipitation should not be clad with saline antiseptics. In general, these solutions require high consumption and are ineffective.
Universal non-salt antiseptics can be applied even in cold periods, they do not lose their properties.
Coniferous woods contain their own essential bactericides, so a combined, shallow impregnation will be enough for them. They are easy to process with varnishes, but due to the natural content of resins, they must first be carefully polished. By the way, of all varieties, spruce is less susceptible to mold than, for example, to insects.
* All packages of protective products indicate the recommended temperature conditions and methods of application. The manufacturer also advises which type of forest product should be treated with an antiseptic.

Instructions for coating the surface of wood.

Pre-degrease the spray gun and brushes, clean the desired areas of the product.

  1. Apply antiseptic to the cleaned area.
  2. After each layer, polish the object with a fine-grained sanding for better absorption (the exception is the decorative finish, where the last 2 layers are not polished).
  3. It is necessary to move IN THE DIRECTION OF THE FIBER.
  4. Structural elements that are constantly exposed to the sun should be covered in three layers.
  5. In case of poor absorption, moisten the surface with a solvent or add a small amount of it to the protective agent.

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