What is the plastering grid for walls and how to choose it correctly

A common task in home renovation is plastering a wall, but using the right materials is often essential to achieving a smooth, long-lasting finish. The plastering grid is a crucial part of this procedure. This small but essential tool keeps the plaster in place and keeps it from peeling or cracking. However, what is a plastering grid exactly, and how can you select the best one for your project?

A type of material called a plastering grid, sometimes referred to as a plaster mesh or reinforcement mesh, is applied to the surface of a wall prior to plastering. Its main function is to forge a solid connection between the plaster and the wall so that the plaster adheres correctly and remains in its intended location. The plastering grid helps to distribute the stress across the wall by adding this additional layer of support, which lowers the chance of damage over time.

The quality of your finish can significantly vary depending on the plastering grid you use. There are various kinds of grids that are appropriate for various wall conditions and applications. Your decision will be influenced by various factors such as the type of plaster you’re using, the surface texture of the wall, and the particular requirements of your project. By being aware of these choices, you can choose a plastering grid that best suits your requirements and guarantees a smooth, long-lasting finish.

The purpose of reinforcing materials on the wall for plastering work

An efficient and tried-and-true method for enhancing the leveling coating’s properties is plaster reinforcement.

1. Helps create a coating layer of greater thickness than indicated by the manufacturer. This allows you to solve the problem of irregularities of the walls. Sometimes, to form a uniform and smooth surface, it is necessary to apply more solution than the structure can withstand.
2. Creates conditions for the formation of a solid layer, protects it from shrinkage cracks and their consequences. This is especially important for finishing ceilings, door and window openings. Reinforced mesh prevents peeling and subsequent collapse of the finish.
3. Increases the durability of the finishing layer. Thanks to the mesh, the coating will be able to withstand a greater load. For example, this is important if cabinets or heavy shelves for books and other items are attached to the wall. Thanks to the reinforcing layer, the load on the wall is reduced.

The reinforcement is susceptible to a solution of any kind with a thickness greater than three centimeters.

• when performing work with a large thickness of the mixture – partially or over the entire base;
• if the building is located close to other buildings and complexes, which, in turn, have a vibration effect on it;
• if neighboring rooms have undergone redevelopment and the specific weight of the structure has been redistributed;
• for modification of the initial characteristics of the coating endurance — increases the bearing capacity for the placement of hanging household equipment and furniture.

Choosing the appropriate plastering grid is essential for creating a smooth and long-lasting wall finish in construction and remodeling. Plaster adhesion is improved and peeling and cracking of plaster is minimized with the use of a plastering grid, also called a plaster mesh or reinforcing mesh. To guarantee a robust and long-lasting application, take into account aspects like the mesh type, size, and compatibility with your wall type when selecting a plastering grid.

Types of reinforcing meshes for walls

The finishing work mesh serves as a frame to prevent the collapse of the entire structure.

Other building materials were also tested prior to the use of reinforcement. Experts desired from them durability, elasticity, high adhesion, and strength. All of the choices did not, however, pass the test. Materials used for exterior finishing are subject to special requirements because of the adverse effects that temperature fluctuations, moisture, and other climatic factors have on the surface.

• metal;
• fiberglass;
• polyurethane;
• fiberglass;
• lavsan;
• made of modified basalt glass (only for wooden surfaces).

Metal construction reinforced mesh

There are numerous types of iron reinforcing material available. Every modification has unique qualities and technical aspects.

• by the method of weaving and the size of the cells;
• according to the thickness of the rods and the method of processing them;
• in composition and method of production.

• high strength;
• the ability to use with any type of solution and base (concrete, cement, clay, wood, etc.D.);
• strengthening effect on a layer of any thickness;
• the ability to cut the canvas with scissors for metal or simple nippers;
• ability to withstand foundation shrinkage and vibration from neighboring buildings.

• the heavy weight of the iron sheet, which is why it cannot be used to reinforce thin walls or plasterboard;
• the ability of uncoated iron to deteriorate under the influence of corrosion.

Why do you need basalt mesh

Plaster that has mesh in it will endure longer and shield insulation from the damaging effects of the environment. Relatively recently, basalt reinforcement emerged, surpassing fiberglass material—which had long held the top spot—in terms of strength and dependability. Basalt reinforcement mesh offers strong putty and plaster adhesion and is resistant to UV light and alkaline environments.

Owing to its technical characteristics, load-bearing walls and the base of indoor buildings are frequently strengthened with it. The web’s width ranges from 0.5 to 5 meters, while the cell size falls between 5 and 25 mm.

Why do you need fiberglass meshes

Underneath the plaster, the facade’s fiberglass mesh is elastic and long-lasting. Melting aluminoborosilicate glass yields it. Rolls of the material, one meter wide by one meter long, are sold. A canvas with cells of 2, 5, and 10 mm is most frequently used for exterior finishing projects.

• fire resistance;
• light weight;
• resistance to corrosion, decay and other chemical reactions;
• high strength;
• elasticity;
• ability to lay on an uneven base.

• absorbs a lot of liquid solution;
• glass dust that occurs during work can cause allergies;
• you need an assistant to stretch the canvas, you can’t do it yourself;
• high price.

Polymer mounting plaster mesh

Consider using polyurethane mesh if the user is unsure about which kind is best for plastering. Compared to the original plastic types, modern material is qualitatively different. Its high strength is attributed to its small weight. Polypropylene or polyurethane are used to make polymer canvas.

• does not require additional fastening to the surface;
• is distinguished by a small roll weight;
• lightweight and easy to transport and install;
• environmentally friendly for people and the environment;
• resistant to adverse weather conditions and vibrations from neighboring buildings;
• due to moisture resistance, there is no corrosion, rotting or deformation.

Polyurethane mesh plaster is unstable in the presence of strong chemical reactions. Furthermore, applying a finishing layer to plastic reinforcement that is thicker than 6-7 mm is not advised.

• cell size and shape;
• density level (the maximum load on the reinforcing layer depends on it).

• square (in the description they are designated by the abbreviation PCF or SQ);
• diamond-shaped (it is easier to carry out individual work with them).

Conditions for using plaster mesh for cement and gypsum, as well as for decorative plastering of external walls and indoors

Plaster and grid strength and durability are dependent on several factors. Accurate material selection with compatible chemical component composition is essential for proper work performance. High adhesive properties between the finishing composition and the primer, insulation, and surface are required. It is advised to select universal solutions that work with practically all building materials or specialized ones for outdoor work in this regard.

Important considerations when choosing materials include compatibility as well as the thickness and placement of the reinforcing layer. Building facade insulation and wall strengthening are accomplished with a variety of meshes. A portion of them find application in the production and renovation of swimming pools, DIY shower stalls, and bathtubs. Here, the finishing layer is composed of materials that are waterproof and have a maximum thickness of 3 cm.

For instance, a gypsum-based solution works with nets made of any material, but because of the mixture’s technical characteristics, it is rarely utilized for external work. Plaster or gypsum putty are typically used in conjunction with plastic reinforcement.

The Rabitz mesh works well with clay and cement-based solutions that are used to equip stoves and fireplaces. Fiberglass reinforcement is used to create a thin, long-lasting finishing layer.

For outdoor work (for facade plaster)

The ability of plaster facade reinforcement to withstand severe weather sets it apart from other forms. The final layer needs to be resilient to wind, frost, moisture, sunlight, and vibration loads. You can use fiberglass and sheets of basalt glass to add an additional layer of reinforcement to the insulation.

The base is finished or insulated using only metal reinforcement. This is because of the substantial weight on the foundation and the base’s vulnerability to mechanical harm. Reinforcing material manufacturers endeavor to consider the unique characteristics of every construction site when creating customized nets for facade construction. They can tolerate being subjected to extremes in temperature, vibrations, moisture, and UV radiation.

Additionally, large, unheated spaces like hangars and workshops are also used for outdoor work with mesh. d.

For interior work

A common question among inexperienced builders is whether a mesh is required for plastering. It is unquestionably necessary if exterior wall finishing or insulation is completed, including h. from the inside. Because they have little mass and a thin finishing layer covering them, residential buildings’ interior walls and ceilings are ideal candidates for reinforcement with polyurethane mesh. OSB and chipboard walls and partitions are finished with Lavsan reinforcements.

For the ceiling

It is advised to use lightweight materials for ceiling work. This is because of the technological procedure that applies a thin layer of plaster. The amount of mortar used is decreased because plaster can be applied over synthetic threads with ease.

Builders frequently come across rooms where the decorative finishing of the walls and ceilings is done with rustication when performing repairs. Serpyanka, or reinforcing mesh fabric, is used for their finishing; however, it must be laid out correctly. In this instance, processing applies to the entire ceiling rather than just specific portions of it. The surface is plastered with a minimum of 10–12 cm of overlap at the joints. Furthermore, you must carefully work out the corners and create an overlap at the joints with the walls.

Methods for attaching reinforcing sheets under plastering walls inside the premises and facades

When the primary layer has dried, the issue of how to fasten reinforcement to the wall is brought up. The work’s literacy affects the finish’s strength and longevity. The material of the structure and the reinforcing material are taken into consideration when choosing the work technology. If you don’t follow it, the decorative and leveling layers on the walls could peel off.

Experts recommend tightening the grid’s adjustment to the wall as the fundamental guideline. It shouldn’t fold, overlap, or have bends (overlapping only occurs when extremely specialized work is done). Plaster compounds, dowels, or metizes are used as fasteners.

Building brackets or self-tapping screws are used to secure a mesh for metal plaster or basalt glass to a wooden base. A finishing layer is applied last. The first drill hole for dowels is drilled on the mineral surface. Their quantity is chosen to ensure that the armpod is evenly stretched and does not dip in any one area. This positioning will provide more vibration protection.

Just lay the fiberglass canvas over a wall that has been plastered with a 4-5 mm solution. Applying the mixture requires a gear tool.

This will make the canvas-laying procedure easier. The reinforcing canvas may get strained or damaged by using a flat spatula. It is only after the reinforcement has thoroughly dried that the leveling layer is applied.

Technology of plastering walls with a reinforcing mesh (inside and outside)

It is necessary to prepare the base for additional work before applying the finish. Damaged areas are first removed (e.g., eaten by mold, corrosion, or fungus). They receive a thorough cleaning and special protective solutions treatment. The surface is then leveled and primer is applied. The finishing layer, the reinforcing mesh for plastering the walls, and the insulation are applied, if needed.

Aspect	Description
What is a Plastering Grid?	A plastering grid is a mesh used to reinforce plaster or render on walls. It helps prevent cracks and improves the adhesion of plaster to the wall surface.
Types of Plastering Grids	Common types include fiberglass mesh and metal lath. Fiberglass mesh is lightweight and resistant to moisture, while metal lath is sturdy and suitable for heavy-duty applications.
Choosing the Right Grid	Select based on wall type and plaster. For example, fiberglass mesh is ideal for drywall, while metal lath is better for masonry walls.
Installation Tips	Ensure the grid is applied evenly and fully adhered to the wall surface before applying plaster. Proper installation helps avoid future problems like cracking.

The quality and longevity of your finish can be greatly affected by selecting the appropriate plastering grid for your walls. The grid offers crucial support, preventing cracks and guaranteeing a level, smooth surface for finishing touches like paint. You can choose the plastering grid type that best fits the requirements of your project by being aware of the various types that are available.

Think about things like the kind of wall surface, the kind of plaster you plan to use, and the particular needs of your project when choosing a plastering grid. Metal grids are perfect for heavier applications, but fiberglass grids are adaptable and work well with most types of plaster. To get the best results, match the type of grid to the plaster and wall conditions.

Plastering grid benefits must be maximized through proper installation. For best support, make sure the grid is firmly affixed and completely enmeshed in the plaster. You can anticipate a more resilient and aesthetically pleasing finish on your walls with the appropriate grid and application.

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