How and with what to plaster wooden walls: types of compositions, description of work stages

Enhancing the appearance and longevity of your interior spaces can be achieved through the application of wooden wall plaster. Plastering correctly is crucial to getting a smooth, long-lasting finish, whether you’re finishing a new space or renovating an old one.

Plaster compositions come in different varieties, each ideal for a range of circumstances and requirements. Selecting the proper plaster is essential for guaranteeing good adhesion and a long-lasting surface, whether it is traditional lime plaster or contemporary ready-mix alternatives.

Plastering is a process that requires several important steps. To make sure the plaster adheres correctly, you must first clean and prime the wooden surface. The base coat will then be applied to establish a firm base, and the finish coat will be applied to provide the required smoothness and texture. Every step is crucial to the completion of a plaster job and demands close attention to detail.

Is it possible and why to plaster a wooden wall?

Plastering provides the necessary fire protection, structure leveling, insulation, and sound insulation for wooden walls.

Furthermore, the wood itself is shielded from termites, wood beetles, rodent damage, and rot, fungus, and mold.

Plastering rules

Plastering wooden houses involves applying a maximum 4 cm layer of plaster, as a thicker layer may eventually crumble.

Since they provide good insulation, lime and gypsum compounds should be used to level the interior wooden base of the living area. The cement composition is appropriate for external walls and non-residential structures because it is not sensitive to extremes in temperature or humidity.

Plastering wooden surfaces is a significant and responsible step that determines how long the coating will last. Ensuring mechanical adhesion is crucial in this situation, and stuffing laths onto the wall is a perfect solution. It holds every kind of solution perfectly.

What is the best way to plaster a wooden wall

The type of mixture chosen will rely on the room’s intended use, the surrounding circumstances, and the owner’s financial situation. The most costly option is gypsum mixture; the best price-quality ratio is found in cement-sand; and the least expensive option is clay.

The gypsum mixture allows for good vapor permeability; the lime keeps pests out; the cement is more durable; and the clay is natural. The explanation of the various types of plaster that follows will help you decide which one to use:

Gypsum plaster

Dry mixes of plaster containing gypsum are made available for purchase. You can apply it to the wall after diluting it with water to the appropriate consistency. Gypsum hardens in thirty minutes, so small amounts of the solution should be used.

Excellent plasticity and adhesion are provided by the composition’s filler and polymers. Only dry room finishing applications can benefit from the gypsum mixture’s low strength and enhanced moisture absorption.

Clay mortar

Wooden wall leveling with clay has stood the test of time and is still widely used. People in cities and villages are drawn to naturalness, affordability, and environmental friendliness.

You can use pre-made dry mixtures or make your own solution with natural clay, water, sand, sawdust, or straw.

You ought to be mindful of the clay’s fat content. If it is high, it can crack and dries unevenly, but the stickiness parameter is well expressed. Lean clay mixtures soak up water quickly and crumble.

The clay composition is supplemented with a filler, which can be straw, sawdust, sand, or fibers. They provide the wall’s monolithic surface and fortress.

Cement -based composition

Cement plaster considerably lowers the cost of construction work and renders the exterior surface resistant to various atmospheric influences.

Different ingredient combinations are offered for sale in sand-cement mixtures. The most common ratio of sand to cement is 1×5. Additives improve the solution’s strength, flexibility, and resistance to freezing.

Lime

Consists of cement, sand, and bastard lime. To prevent plaster bloating, it is crucial to wait two weeks after damping lime. The inclusion of lime in the mixture effectively aids in the prevention and control of mold and other pests.

Textured plasters

Applied using specialized tools, such as structural rollers and stencils, to the plaster layer that had already been completed with lace-out lace. In the construction industry, the mixture is offered in dry or completed form.

Structural

This completes the walls’ decoration. The mixture is prepared by adding synthetic ingredients, and it is then packaged in containers as a finished product.

For a smooth finish when plastering wooden walls, it’s critical to select the appropriate plaster type and adhere to the recommended procedures. The procedure entails first priming the wood surface, if necessary, and then plastering the area in multiple layers. Various plaster types—such as gypsum- or cement-based—offer different advantages based on the desired finish and the state of the wall. A long-lasting and appealing outcome is ensured by understanding these components and procedures.

Materials and tools

To quickly and expertly plaster wooden surfaces, you will require the following supplies:

• lath;
• beacons, level;
• primer;
• medium and wide spatula;
• rule;
• appropriate type of plaster.

The manufacturer’s recommendations and the instructions on the packaging should be carefully read.

Preparation of the solution

Using a concrete mixer or mixer, the solution is mixed; the amount of water needed is determined by the desired consistency. As a plasticizer, add liquid soap to the cement-sand plaster mixture. It is necessary to apply the gypsum mixture quickly and to prepare it in small amounts.

Preparation for applying plaster

Special base preparation is needed for plaster to adhere firmly and last a long time on a wooden wall. A unique lathing consisting of metal mesh or wooden slats is used because of the poor adhesion. Builders like to use wooden shingles because they are less prone to rust and bending than mesh, especially when using lime mortar.

Preparing the walls

Wooden walls ought to be robust and reasonably level. If there are small spaces between the boards, they can be covered with plaster and lathing. Prior to plastering, walls need to be primed and allowed to dry.

Fastening the shingles

Shingles are "crosswise" nailed to the wall in two layers of thin, up to five mm thick slats. Attaching them to the wall won’t be hard at all:

1. Wooden slats are soaked in water for 2-3 hours so that they do not split with nails;
2. Starting from the top corner, 3-millimeter shingles are nailed at an equal distance of about 4 cm.
3. The final layer of shingles is nailed on top of the first layer. The thickness of the slats here is already 5 mm and they are located perpendicular to the first layer.
4. Nails are driven in at 15 cm between the first two slats. The distance between the second slats can already be 7 cm.

Installing beacons

Beacons can be easily mounted on walls; the key is to take accurate level measurements. To attach the beacons, you must wet the designated locations with primer or water. Adhere the beacon slats with putty, using several spots along the vertical line. As long as the putty is still soft, everything must be adjusted to the appropriate level.

Applying plaster

How is a wooden wall plastered? It is recommended to use a unique technology that is divided into phases.

Splashing

Splashing is the process of first applying a layer that contains plasticizer. Applying it between the beacons from below should be done without leveling. The initial layer’s thickness shouldn’t be greater than 10 mm. After you give it a little tug, you can apply the primer.

Primer

There is no indication in the primer’s composition that a plasticizer is present. No more than 20 mm in thickness. Using a rule, the freshly applied plaster is leveled beginning at the bottom. To compact the layer, you must use a float to rub the surface following a five-hour break.

Cover

Upon the second layer’s drying, fine work must be completed. Putty does not need to be applied again if the cover is applied properly.

The wall is dampened with water before the 1-2 mm liquid cement mortar cover layer is applied. The wall surface is leveled to the perfect level using a float and a trowel.

Drying plastered surfaces

Using an industrial dehumidifier, a heat gun, open windows during the warm season, or on the heating will all help dry the plaster. You should use a natural drying method to prevent cracks.

Type of Plastering Composition	Description
Gypsum Plaster	Ideal for indoor wooden walls. Easy to apply and provides a smooth finish. Suitable for dry areas.
Lime Plaster	Great for both indoor and outdoor use. Flexible and breathable, allowing moisture to escape. Ideal for older buildings.
Cement Plaster	Durable and water-resistant, making it suitable for areas prone to moisture. Often used for exterior wooden walls.
Ready-Mixed Plaster	Convenient and easy to use. Pre-mixed with additives to improve adhesion and workability. Suitable for DIY projects.
Stage of Work	Description
Preparation	Clean the wooden surface, repair any damage, and ensure it"s dry. Apply a primer if needed to improve adhesion.
Application	Apply the plaster in layers. Start with a base coat to level the surface, followed by a finish coat for a smooth texture.
Curing	Allow the plaster to dry completely. Avoid direct sunlight and extreme temperatures to prevent cracking.
Finishing	Sand the surface once dry for a smooth finish. Apply paint or other finishes as desired.

Wooden walls can be made much more durable and aesthetically pleasing by plastering them. Selecting the appropriate plaster composition is essential to attain a seamless, long-lasting finish. Every type of plaster, from contemporary gypsum-based alternatives to more conventional lime-based ones, has special advantages and ways of application. Selecting the best fit for your unique needs and preferences is made easier when you are aware of these differences.

Plastering wooden walls is a process that involves several important steps. To ensure better adhesion, start by prepping the surface by cleaning it and maybe applying a primer. After that, use a base coat to smooth out the surface and fill in any voids or flaws. Apply a top coat at the very end for a polished and seamless appearance. Every stage is necessary for a plastering job to be successful and enhances the overall quality of the finished wall.

These tips will help you achieve a well-plastered wooden wall that looks fantastic and will last for many years if you follow them and select the right materials. In order to guarantee that the plaster adheres correctly and functions well, offering both functional and aesthetic benefits, proper preparation and application are essential.

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