How to paint OSB slab on the facade?

It is not so difficult to build a major home repair or to build a small house on a summer cottage with your own hands. To lay the foundation of the structure, it is important to correctly design it and clearly adhere to the indicated parameters during assembly. But on the further quality of work depends on how reliable, strong and durable this frame will be. For example, materials such as OSB will help you quickly and efficiently make walls. But then you have a question, how to paint the OSB slab on the facade and inside? In our article you will find answers to all your questions.

to contents ↑

Summary of OSB

Many today use OSB boards for wall cladding, ceilings. What is OSB - oriented particle board, which is a composite sheet:

• It consists of three layers of wood shavings, the space between them is filled with wood chips and non-timber wood.
• The upper layers of the chips are located along the length of the plate, and the inner ones are perpendicular to the outer.
• To connect them, use a waterproof resin with the addition of wax and synthetic boric acid.

The manufacturing process itself occurs under high pressure by hot pressing, resulting in the formation of plates.

Important! When buying plates do not forget about the classification. Thanks to her, you can determine which plate you need to take for certain works:

• OSB 1- for indoor use, in rooms with low humidity;
• OSB 2 - for indoor use, in rooms with normal humidity;
• OSB 3 - for external work and floors with increased humidity;
• OSB 4 - moisture resistant with increased strength, used for load-bearing structures.

to contents ↑

What is the advantage of painting OSB boards?

With their help, you can quickly and cheaply sheathe a house outside. After mounting the OSB boards, it is necessary to refine the surface. Painting is one of the easiest and most affordable ways to decorate.

In addition, there are some more advantages:

• the paint protects the plate from moisture, thanks to this the plate does not deform;
• with the help of paints we decorate an unsightly appearance.

to contents ↑

Paint selection

You can get a really high-quality result both by technical and aesthetic criteria only on condition that the building and decorative mortar is chosen correctly. In order not to be mistaken, when deciding how to paint the OSB plate on the facade, focus on the following possible options.

Alkyd paint

It consists of resins welded from special mixtures, acids and vegetable oils. After drying, this type of paint leaves a thin but strong film layer on the surface that protects from the external environment.

Benefits:

• cheap price;
• the coating provides a moisture resistant insulating layer;
• does not fade in the sun, tolerates frost well up to -30 ° C;
• dries quickly;
• not toxic.

Disadvantages:

• quickly flammable;
• afraid of alkaline effects;
• stinks when stained and dried.

Important! This type of enamel is suitable if you need to paint the OSB plate on the facade and inside the house. Popular brands among buyers: Tikkurila, Enamel, Farbex.

Acrylic mixture

The composition of this enamel includes water and acrylic, as well as the elements that bind them. When the paint dries, the water evaporates. Only the polymer protective film will remain.

Pros:

• simplicity and ease of use;
• wide range of colors;
• cheap price;
• high moisture resistance and resistance to temperature extremes;
• possesses refractory properties;
• no unpleasant odors when applied;
• service life up to 10 years.

There are no shortcomings!

Important! When storing, follow the rules:

• can not be stored in the cold;
• do not dilute with water.

It can be used for both internal and external works.

Latex enamel

Latex mixtures also apply to water-based dyes, but synthetic rubber polymer (latex) is added to their composition. Like all paints and varnishes, it has its advantages and disadvantages.

Advantages:

• high moisture resistance;
• reliability - after applying to the surface, a thin, durable latex film appears that can be wiped with a damp cloth;
• thermal insulation - latex base additionally gives the walls thermal insulation qualities;
• very economical - when applied it is distributed in a thin layer;
• non toxic;
• dries very quickly;
• long term of operation.

Disadvantages:

• does not hide wall defects, the painting surface must be well prepared;
• does not tolerate subzero temperatures;
• a high likelihood of developing fungus and mold, additional processing of the walls with special means will be required;
• high price.

Important! It can be used only for internal work.

Oil paint

Oil mixtures are made on the basis of drying oil. This is a traditional look, if you need to paint the OSB slab on the facade, but it is too outdated and has many disadvantages:

• shallow penetration into wood;
• toxicity;
• long drying, more than a day;
• short service life;
• high price.

Important! It can be used both indoors and on the facade of buildings. The internal service life is 3 years, and outside the building - 2 years. Manufacturers of quality paint: Coloray, Syntilor.

Aqualaki

The main composition of scuba divers includes:

• water;
• micro wax;
• means for antiseptic treatment;
• modifiers.

Benefits:

• non toxic
• a film appears on the painted area, which protects the wood from moisture and dirt;
• possesses antiseptic properties;
• no pungent odor, which allows you to work indoors;
• easy to use;
• There are brands of varnishes that withstand sub-zero temperatures and direct sunlight.

Due to these properties, they are widely used for processing OSB both inside and outside buildings.

Important! When choosing an aqualac for a facade, pay attention to the fact that it contains frost-resistant and sunscreen additives.

Helpful hints:

• The paint should be polymer-based; the aqueous solution emulsion is not suitable for chipboard.
• Using compositions based on acrylates, you will get walls that will be conveniently and simply cleaned of dirt and dust.
• Please note that if you use oil paint, the process will take a long time because the oil paint dries for more than 24 hours.
• Lacquer extends the service life, while the structure of the plates does not hide.

to contents ↑

How to paint OSB slab on the facade?

The facade of the building is recommended to be painted with oil, alkyd, acrylic paints. After reading the description above, you can make a choice. Having decided on the paint, you can begin to prepare the surface of the walls for painting.

Important! Since the facade of the building is made of OSB 3 and OSB 4, the main difficulty in painting is that these materials are very moisture resistant. Based on this, it will be necessary to do the front of the preparatory work.

Preparatory work before painting the facade:

1. Sand the entire surface with sandpaper for roughness.
2. Primed with acrylic primer or synthetic resin. It is necessary to process the entire coverage area.
3. Putty all joints of plates. Pay special attention to the ends - they need to be treated with acrylic sealant.

Important! If you want to hide completely the structure of the plates, you will need to putty everything completely.

4. Primed with an antiseptic

A lot depends on the quality of the chosen primer. High-quality primer:

1. Covers and insulates the slab well.
2. Will create a good base for the paint.
3. Significantly reduce paint consumption.

Important! Examples of some quality primers according to customer reviews:

• Master Inter;
• SOIL moment;
• Kreisel 301;
• Ceresit CT17.

All of them are sold in 10 liter containers.

Paint preparation and application:

• Paints and varnishes must be applied in two layers. The first layer must be diluted by 10-15% with a solvent of the appropriate type.

Important! Please note that each can contains detailed instructions for use, which indicate the brand of the desired solvent.

• To apply paint, you need to use a roller or spray gun.

Important! In practice, it is noticed that the paint consumption decreases sharply when the spray gun is working.

• The ends of the house after painting are recommended to be closed with slats, thereby masking the joints. You can paint them with a different color.

to contents ↑

Painting OSB boards indoors

For internal work, boards of the OSP 1 and OSP 2 categories are used, respectively - both water-dispersion paints and PVA or acrylic-based paints can be used for them.

Important! Keep in mind that it takes 50% more paint to paint OSB boards than to paint flat surfaces.

Technology for painting OSB panels inside the house:

1. Grinding - the surface of the panel must be cleaned with sandpaper.

Important! It is necessary to remove the upper protective layer - this procedure will help in the future better adhesion of the paint to the panel.

2. Sealing joints - the prepared area should be smooth, without cracks, chips. If they are, it is necessary to seal up, using a special oil-glue composition or sealant for wood. After drying, polish again. The joints of panels can be decorated with rails.
3. Primer - it is necessary to prime the plates well, evenly distributing them with a brush over the entire area.

Then follows the direct painting of OSB plates on the facade - we make it in several layers.

Important! The first layer should dry well, then apply the second.

Description of the roller painting process:

1. Open a can of paint, stir well.
2. Pour into the paint tray.
3. Wet the roller in the paint.
4. Squeeze out excess on the special plane of the tray.

Important! After spinning, the mixture should not drip and drain from the roller.

5. With wide movements, waving, we apply the first coat of paint.
6. It is necessary to apply at least 2 layers, so that the look is more beautiful, do not regret the paint by making 3-4 layers.

Important! Pay special attention to the places where the plates are joined. To hide all kinds of strokes, the next layer is performed perpendicular to the previous one.

Varnishing is the final phase of work. Varnishing will simplify maintenance and extend the life of the product.

Important! When using alkyd enamel, this process is not required.

OSB varnish painting

You can paint the plates with varnish, the floors look especially beautiful.

Important! If you decide to varnish, use sanded OSB boards. Otherwise - you yourself need to grind using sandpaper.

Staining technology:

1. Prime the polished area with a brush.
2. Allow to dry.
3. To varnish with a roller.
4. To obtain a high-quality result, it is necessary to apply 3-4 layers of varnish.

Important! After this treatment, the plate retains its structure and creates a smooth smooth surface.

to contents ↑

Stock footage

Adhering to the process technology and our advice from this article, you will get a high-quality result that will please you for more than one year. You will definitely be satisfied that you took OSB boards as a basis.