Paint selection in wooden structures, the importance of paint in maintenance and repair, and how to choose the right paint?
What is breathable paint?
How should paint removal be done?
Although wood is a building material that gets better with age, wood left to itself without maintenance and repair causes cracking and fiber loss due to the effect of weather conditions. Mold and cracks may occur. With the accumulation of dirt in these cracks, infestation can occur and water may leak from the cracks. In order to protect the wood from such deterioration, surface protectors such as paint, varnish and lacquer should be applied periodically and these materials should be determined and used in accordance with the structure.
Protectors to the wooden structure; It can be applied with different methods such as brush, dipping and gun. Not every paint to be considered here is suitable for every application. In order to achieve a good result, you should correctly determine the area to be protected, choose the protective material accordingly and apply it with the right method.
The painting process in wooden structures is an extremely important step, so the process does not end with choosing a nice color and buying a quality paint.
First of all, it is necessary to determine where the wooden structure will be painted. If exterior painting is to be done, you need to choose a flexible and breathing paint that is resistant to the sun and outdoor conditions. If you plan to use it on wooden floors, polyurethane-based material, which is resistant to impacts and abrasion, should be used. For this reason, you need to know why we will protect the structure before choosing paint and surface protection.
If you want to build a wooden structure; Before deciding on a wooden building material, definitely specify the color choices you want. One of the most common mistakes is to choose the building material and decide on the color after manufacturing. Because the resin and knots in the wood material will limit your color selection. If you are going to prefer a color different from the natural color of the wood, indicate your color choice to the company from which you will make the wooden structure or the manufacturer from which you will purchase the material.
For example, if you want to paint the exterior of your wooden house white, you need to choose the tree type with the least resin and few knots. Since wood is a breathing building material; Foreign substances leaking out of the wood will leak onto the paint and stains will begin to form. Even if putty and similar materials are used under the paint to prevent leaks, over time there will be swelling and shedding in these parts. The reason for these swellings is that the resin that wants to leak out removes the paste.
Wood is always a breathing material, so the type of tree you will prefer, the color choices, the weather conditions of the region where it will be located and the purpose for which the building will be used are indispensable details for the project phase. If you have decided to have a wooden house built, we recommend that you first work with a reliable, experienced company that gives you technical support. In order for the wooden structures that require maintenance and repair to be long-lasting and not to cause trouble and cost to you, you have to hold the job tight from the beginning.
Since dark paints absorb the sun's heat, especially on the exterior, and increase the temperature, it causes the resin to leak onto the surface more. Because the resin leakage increases at the same rate as the temperature. Your only advantage in dark paints is that the stains caused by resin leakage are not noticed and do not spoil the appearance of the structure.
Another mistake made before the dyeing process is the "knot burning" method. This method does more harm than good to the paint.
Some of the colorless and transparent varnishes used on the exterior cannot protect the violet rays and cannot protect the wooden surface at the required level. You can use such varnishes and varnishes to prevent discoloration and scratches in the building or furniture. If it is not mandatory, we recommend that you do not use transparent and colorless varnish on wooden surfaces used on the exterior.
Transparent paints used outdoors actually have a color, these paints contain natural metal oxide pigments that do not lose their UV filter effect. Using these paints instead of varnish will give you a longer protection.
Another issue you should pay attention to is the drying speed of the paint.
So, what is the breathing paint that we recommend to be used in wooden structures?
Products with high water vapor permeability and micropores that form a paint layer that is impermeable to water but can pass water vapor on the painted surface are called breathing paints. Since wooden construction materials used in the outdoor environment will be exposed to factors such as precipitation, temperature and humidity, cracks will occur over time and these cracks will cause the wood to get wet. Drying of the wet wood in a short time is very important for the life of the wood. Keeping the wood wet for a long time will cause both the paint to fall off and the wood to rot. This paint layer formed by the breathing paint will protect the wood against these factors. Breathable wood paints can be covering and transparent, transparent ones are colored and contain natural metallic pigments. These paints have the flexibility to work with wood because they penetrate the wood so well.
What is the durability of exterior paints?
It is difficult to determine the durability life of paint. It varies according to the type of wood, paint quality, correct application, conditions of use and most importantly climatic conditions. The durability of the paint depends on the properties of the surface on which it is applied, as well as the paint quality. Before the exterior paints are applied, the wooden surface must be cleaned and dry. Putties, filling materials and linseed oil applied on the wooden floor are the biggest enemies of the paint. Although sanding and planing is recommended to make the paint look smoother, the roughness of the exterior surfaces prolongs the life of the paint by providing better absorption.
However, if the wood material has been kept waiting before painting and has been affected by weather conditions, the areas that have faded from the sun or darkened by exposure to moisture should be thoroughly sanded and these layers should be completely removed before painting. If you do not do this, the effect and quality of the paint will decrease. Wooden building materials should not be kept in an open and unprotected area. The wood that has been kept in the field for months before starting the production must be handled and maintained. In fact, if possible, it should not be kept in a natural environment, but should be kept in sheltered warehouses and ventilated.
Burning to prevent resin leakage from the knots will also reduce the service life of the paint. As you can see, there are many factors that affect the longevity of the paint, but if you need to give it a while, the paint lasts for about 3 to 7 years. If outdoor paints are chosen and applied correctly, they do not flake, swell, spill during this period and are easy to maintain.
Outdoor paints; It is tested in air-conditioning ovens that imitate the effects of rain, heat and sun, but the actual durability test is made with real experiments, these paints, which provide good protection, never hold the pre-protection treatment. In the manufacture of wooden structures, all stages from the structure of the tree to its cutting, processing, production quality, materials used in construction, workmanship, good study of environmental conditions, from project to design, maintenance and repair are very important. For example, not rounding the sharp edges of wooden profiles, which seems like an insignificant detail, will cause the paint to deform earlier in these corners.
How to paint old wooden surfaces
The painting process, which must be done at certain intervals, ensures a longer life of the wooden structure. As we mentioned above, there are many factors that determine the maintenance and repair time. When it is time for maintenance and painting, if there are cracks, blisters, spills, darkening and destruction caused by weather conditions, these areas should be cleaned with sandpaper before applying paint to wooden surfaces. If there is no deformation in the old paint, cleaning will be sufficient. You can request support from us during the maintenance and painting phase.
How should all paint be removed?
If you want to completely clean the existing paint, you can use various methods or request professional support.
You can apply the mechanical cleaning method, which is one of the wood paint cleaning methods.
Mechanical cleaning method
It is the process of removing the paint with sandpaper. Various tools are available that make the sanding process easier to apply. With this method, all the paint is removed and at the same time, a healthy ground is prepared for applying the new paint. The mechanical cleaning method is the best among the methods that will not damage the surface. As a second method, hot air guns can be used.
Paint removal method with hot air guns
After removing the paints on the wooden surface with a hot air gun, the surface must be sanded to ensure that the new paint is bonded to the wood in a healthy way before the painting process is carried out.
Burning, which is another paint removal method, is a fast process, but it negatively affects the adhesion of the new paint to the wood, so we recommend that you do not apply this method unless you have to.
Paint removers
Solvent type paint removers can be used where the above methods cannot be applied. Paint removers containing caustic work faster but can leave harmful residues on the surface. After using paint remover, the surface should be cleaned with clean water or solvent.
In all these processes, after the paint is removed, bruises, cracks and deformed areas on the wooden surface should be repaired and the surface should be pre-treated.
protection must be applied. Before applying new paint, the preservative must be allowed to dry.
You can contact us for all technical information about wooden structures.
0216 630 21 21-22 / 0532 179 02 03-04 / info@baneva.com.tr
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