Properly executed painting of the facade of the building is able to transform a nondescript wooden house into a beautiful “house”, striking with its artistic style. To form the exterior of a residential building, a wooden house is painted, the paint for which is chosen in strict accordance with the type of material from which the building was erected and the conditions of use - for painting the house from the outside or from the inside.
You can paint a wooden house with different types of paints and varnishes (more under the text - LKM), since the performance characteristics of paints for exterior and interior work are different. The quality of the construction of the facade of a wooden building depends on the attractiveness of the building and its durability.
For centuries, wooden houses have served people by protecting them from cold, rain and wind. In this case, the building is exposed to negative environmental influences, leading to the aging of the tree and the deterioration of its properties as a building material. The centuries-old practice of operation has determined the approximate period of wear of wooden residential buildings, not exceeding 80-85 years.
The main natural factors aging the natural wood of the facade of a building are:
direct sunlight, which mercilessly dries wood fibers. Dried fibers lose their elasticity and strength, change their position, become caustic. The surface becomes rough, begins to actively absorb sedimentary moisture, burns out and becomes covered with dark spots;
sedimentary moisture provokes deformation and swelling of the material;
Here what will happen if you do not take care of how beautifully to paint a wooden house outside, the photo below is not the worst option.
temperature drops - the worst enemy any building material. With a sharp cooling, the moisture that fills the pores of the dampened tree freezes, turning into a crystalline state. Ice crystals expand the fibrous structure of the tree until the individual fibers break. When drying, the fibers are narrowed, which with repeated cyclic repetition leads to cracking,
unprotected from moist air wood is prone to rotting, mold and fungal coatings;
bark beetle-borer insects, sharpening a tree and destroying the integrity of the tree structure.
The factors causing aging of wood and premature deterioration of the house are enough. To preserve wood in its pristine natural state, it is necessary to protect the surface of wooden walls with special chemical compounds:
fire retardants - to protect against fire;
water-repellent means - to protect against moisture;
antiseptics - to combat fungi, mold and other biological pests;
insecticidal preparations - to combat an invasion of woodworms.
Worthy and convenient alternative the use of protective chemical compounds will serve painting for the facade of a wooden house, the application of which achieves the same effect, similar to the use of a whole complex of various preparations. At the same time, painting a wooden house from the outside performs a wider range of tasks as compared to the monofunctions of each protective solution separately, since, along with preserving the quality of the wooden facade, the coating of paintwork follows decorative purposes. Using a variety of options for painting the house, you can significantly change the look of the old facade and the entire wooden structure.
Distinguish between paints for interior and exterior use. Exterior coatings for outdoor use have a wider temperature range of use, they are more moisture resistant. Compositions for painting interior should be safe for people and pets, have no unpleasant odors, have a high resistance to abrasion.
Initially, the painting of the facade of a wooden house was done with paints for exterior works. When refining the facade by painting became popular, paint manufacturers instead of “exterior” often began to write “facade” on the packaging. Over time, the second name stuck and was used even more often than the original.
To the facade Paints for wooden houses are subject to the following requirements:
High adhesive qualities in relation to wooden surfaces.
Increased impact resistance and resistance to scratching and spalling, ensuring the mechanical strength of the coating. The presence of increased mechanical wear resistance and resistance to abrasive wear from exposure to wind and dust.
Atmosphere resistance, which consists in the ability of the coating material to resist the damaging effects of the weather and the environment. Here you can add the requirement for chemical inertness of paint and varnish materials with respect to alkalis and acids formed in areas with a high concentration of exhaust gases.
The hydrophobicity that provides water-repellent properties to protect the wood from rotting.
Resistance to sudden temperature changes of a cyclical nature.
Lightfastness (UV resistance).
Good vapor permeability.
Preservation of elasticity after drying, compensating for the microstrain of the materials of the facade during temperature changes.
Low dirt retention, resistance to repeated washing.
The ability for a long time to preserve the brightness of the color scheme.
In the video, what the paint looks like after 5 years of house operation:
When choosing which paint to paint a wooden house outside, the following types of paintwork materials are worthy of attention:
Able to impregnate the outer layer of wood to a depth of 4-7 mm for full protection against negative exposure to environment, rot, mold and mildew. The industry produces two types of antiseptics:
coating antiseptics - opaque coatings that completely hide the texture of the wood, while maintaining surface relief;
lassing antiseptics - Transparent coatings that preserve the natural texture pattern.
They have excellent weather resistance and allow the wood to "breathe." Acrylate coatings do not interfere with natural air exchange through wooden walls. In acrylate paints high elasticity, allowing the painted layer does not crack when deformed facade. In European countries, more than 80% of residential buildings are painted with acrylate paints. Acrylate paints of different colors are mixed in homogeneous formulations, which makes it possible to obtain color of any desired color.
It has proven itself well in half a century of use. They have excellent weather resistance, they are perfectly absorbed into the tree, but in the reviews they note two drawbacks:
prolonged drying of oil coatings, exceeding 24 hours;
after coating with oil paint, the wooden surface becomes matte.
Endowed with water repellency. However, due to rapid drying (20-30 minutes), the coating penetrates the wood layers to a shallow depth, therefore alkyd coatings are short-lived. A distinctive feature of alkyd paints is the ability to withstand low temperatures below 30 degrees of frost.
This is important! Any paintwork needs to be updated periodically. Having decided how to paint a wooden house outside, you should know the maximum period during which the applied coating can lose its original appearance and quality:
for antiseptics, the service life ranges from 5 years for the thickening compounds to 7 years - for coating antiseptics;
for acrylate materials - no more than 8-10 years;
for oil paints - up to 6 years;
for alkyd coatings - up to 7 years.
Acquisition of facade paint from leading manufacturers does not guarantee a high-quality painting of a wooden house. Wood paint for the house from the outside should correspond to the operating conditions of the building and the condition of the painted surface. For example, paints produced in Spain or Italy are more adapted to the mild climate peculiar to these countries, while the paintwork materials of Finnish or Swedish brands are designed for harsh winters.
The use of new buildings is recommended glazing antiseptics, the transparency of which will not hide, but only emphasize the natural beauty of the tree structure. In this case, the protective purpose of the coating will be observed.
Oil paints are more appropriate when painting outside a wooden house on top of an old paint and varnish coating, as wooden buildings were previously painted with oil paints, on which modern compounds do not fit well. It should be clearly understood that the determining factor when choosing paintwork materials for repair and restoration work is the type of binder, but not the solvent. Therefore, oil or acrylate paints are applied without problems to the old oil paint or alkyd coating, however, only the acrylate paint is allowed to be applied to the old coating with an acrylic base.
High frost resistance is inherent to alkyd coatings; they continue to perform their functions at temperatures below -30 ° C.
Acrylic paints are popular for their ease of use, they can be diluted with water and applied by any means. When painting, you can get the shade of the desired color. It is enough to purchase white paint as the basic composition and special colorants, which combine to get the desired color shade.
The leading brands among the manufacturers of facade paints on the Russian market of paintwork materials are:
Tikkurila (Finland) - the name, which has become a kind of quality synonym for any paint. Tikkurila is considered to be an excellent covering ability. Tikkurila feels great on wooden surfaces of any configuration.
Alpina (Germany) is one of the leaders in the production of coatings, successfully competing with other "promoted" brands. The compositions have a high resistance to abrasion, temperature changes. Clients are offered individual computer tinting to create an exclusive facade.
In the video, a comparison of popular paint coatings brands:
Dufa (Germany) specializes in paintwork, optimally suitable for harsh climatic conditions with cold winters.
Beckers (Sweden) has established itself in the Russian market as a manufacturer of high-quality paints for painting surfaces of concrete products, wooden facades and terraces, and metal structures.
Dulux (Netherlands) produces paint in accordance with strict European standards for quality and safety of use. It is a better option for the criterion of price / quality compared to other coatings.
Marshall (Turkey) is a very popular paint in private housing construction, capable of covering the base coating of a dark color. Paint dries quickly, does not drip from brushes or rollers during painting.
Many Russian enterprises produce high-quality paint for exterior painting of wooden surfaces, among which there are:
Russian-made paintwork materials successfully compete with European brands when developers choose reliable facade coatings for low-cost country buildings and middle-class quality houses.
The painting of a wooden house from the outside conditionally occurs in two main stages: the preparation of a wooden surface for applying paintwork materials and the direct application of a paint and varnish coating.
This is an important point in determining how to paint a wooden house with a maximum protective effect. The application of paint on an unprepared wooden surface is extremely undesirable, since the conditions for good adhesion of paintwork materials and the rules for processing wood from the negative effects of a biological nature will not be provided. Preparing the surface for painting consists in carrying out the following activities:
if the building is new, then it is enough to clean the wooden surface from dust and dirt with any improvised means.
if it is necessary to paint the facade of an old building, then the remnants of the old paintwork are removed and the traces of mold are removed;
damaged areas of the wooden surface are repaired, all irregularities are cleaned, cracks are puttied;
nail heads, metal inclusions are coated with a metal primer;
it is advisable to finish the alignment with a primer.
This is important! At the end of the preparatory activities, it is recommended to leave the treated surface for several days until it is completely dry, ensuring good ventilation.
Implemented in the following sequence:
wood is impregnated with a primer antiseptic to enhance its protective qualities and improve adhesive ability;
a finishing coating is applied, consisting of a primer layer on wood and several layers of paint, with a time interval that guarantees full drying of each previous layer.
The painting of a new and old surface is carried out in the same sequence, but several nuances should be taken into account:
the front surface of the old building should be painted with the same type of paintwork material which was used initially;
when painting old wood, the use of a roller is not recommended, since microcavities are formed in its structure due to cyclic swelling and shrinkage, which the paint does not fill with paint from the roller. It is better to use a brush.
Clearly the process of painting a house on video:
When painting exterior The wooden surfaces of a residential building are recommended to “listen” to some of the advice of experienced craftsmen.
The paint is applied only on a dry surface. When dyeing in several layers, the interlayer aging is observed, the component for alkyd compounds is 24 hours, and for water-borne compounds it is from 2 to 12 hours.
The paint is applied in the direction longitudinal to the fibers.
The consumption of facade paint will noticeably decrease if the surface is primed.
On our site you can familiarize yourself with companies that specialize in paints and varnishes among the houses in the exhibition Low-rise Country.
The facade of the building is the face of the building. The appearance of the facade is judged not only about the quality of the apartment building, but also about the tastes of its owner. Therefore, the color of the facade should be attributed to one of the main measures for shaping the appearance of the building and ensuring its readiness for long-term operation.