Knowing when and why rough plastering is required is crucial when working with concrete walls. Rough plastering is essential to achieving a smooth and long-lasting finish, whether you’re priming a surface for painting, wallpapering, or another finish. It produces a strong base that can endure daily wear and tear and helps to level out imperfections.
When it comes to plastering, different surfaces call for different techniques. For example, careful preparation of concrete is necessary to guarantee proper plaster adhesion. For the best results, it is necessary to take into account the peculiarities of other materials, such as drywall or brick. To achieve a professional finish, it is essential to understand how to work with each type of surface.
The fundamentals of rough plastering will be covered in this article, along with the procedures to follow when working on concrete walls and the methods to apply on other surfaces. Whether you’re remodeling an old wall or starting from scratch, these pointers will help you do the task correctly.
It’s crucial to know when and how to rough plaster walls, particularly concrete surfaces. By ensuring that the walls are level, smooth, and prepared for painting or other treatments, this procedure lays a strong foundation for the final finish. You can avoid future problems like cracks or uneven surfaces and save time by learning the proper techniques for plastering from scratch, regardless of whether you’re working with concrete, brick, or other materials.
Where to start repairs: nuances of rough finishing of walls
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With the variety of materials available today, painting or wallpapering is typically the last finishing touch for walls. Setting up the base properly is essential to completing these tasks flawlessly.
Base for finishing
Rough finishing, also known as rough plastering, is the first stage of wall leveling. Its basic technique is to apply specific materials to the surface of a gypsum or cement base in order to conceal flaws of different causes. This is merely the foundation for further work; it is not the finished product.
Wherever it’s employed
Both inside and outside, rough plastering is utilized. In the first example, gypsum mixtures are the only materials used because of their poor resistance to water and frost. These are not the drawbacks of cement plasters, which are widely used.
How to plaster
The right tool and the necessary material must be ready before work can begin. A mortar mixer is used to prepare mixtures based on cement and sand, and a mixer is used to mix gypsum mixtures. But in any event, the following extras are also required: marking cords, fasteners, and beacons.
There are two types of rough plastering: under the rule and on beacons. The first option is selected if maintaining the room’s proper geometry is imperative and there are stringent requirements for the finished surface. In this instance, any elemental mismatch is disregarded during the finishing process that follows. The required quality will be guaranteed using the rule if the coating’s ideality is not the primary requirement.
Rough finishing success depends on adherence to the task sequence.
Plastering phases for walls in rough finishing:
- Hanging the walls.
- Surface preparation.
- Priming the base.
- Securing beacons.
- Preparing the material.
- Plastering.
- Grouting and removing cavities.
Hanging is the initial step that enables you to identify the bare minimum coating layer and view wall defects.
Surface preparation includes cutting out protrusions, removing "loose" areas, creating notches, and putting in plaster mesh.
Priming the base is the process of applying specific compounds to the walls to fortify the deeply ingrained layers of the previous coating and lessen the absorbency of the finishing surface.
Beacons are installed by fastening extra hardware (metal slats) to make plastering easier and guarantee a level surface.
The material is prepared by mechanically mixing water with a portion of the finishing materials.
When is putty available?
The finished surface becomes stronger after the major rough finishing stages are finished.
Cement dries two to three times slower than gypsum mixtures. The fact that there is a significant reduction in work time makes this an important consideration when selecting a material.
Subsequently, the walls are puttied in order to get the base ready for finishing.
The intended outcome is guaranteed when all stages are carried out correctly.
| When rough plastering is needed | How to finish concrete walls |
| When the wall surface is uneven | Clean the surface, apply a bonding agent, then use a cement-based plaster mix |
| To cover cracks and imperfections | Apply the plaster in thin layers, allowing each to dry before the next |
| When preparing walls for painting or wallpapering | After plastering, sand the surface to achieve smoothness |
| To improve insulation and soundproofing | Use a thicker plaster coat for better thermal and acoustic properties |
In order to get walls ready for final finishes, rough plastering is a crucial step. It offers a strong base that evens out flaws and guarantees a long-lasting surface for painting, applying wallpaper, or applying other decorative finishes. Whether dealing with drywall, brick, or concrete, the procedure demands close attention to detail in order to produce a polished outcome.
In order to ensure adequate adhesion, concrete walls frequently need to be thoroughly prepared before plastering. For optimal results, this may entail priming the surface, using the appropriate plaster mixture, and applying a bonding agent. Every type of surface, from drywall to bricks, has unique requirements, so it’s important to know what the material you’re working with requires.
Plastering your walls correctly from scratch not only improves the look of your room but also lengthens the life of the finishes. You can create a smooth, even surface that’s ready for any design you have in mind by using the right tools and methods.
