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Construction Materials

August 12, 2017 18:06

Grid wall plaster

finishing or leveling plaster walls - the most commonly used in construction technology.To get high-quality results really applied grid for plaster walls.Grid armiruya applied to the surface layer greatly increases its strength and hence durability.

Grid wall plaster

Grid plaster walls

reinforcing mesh is used not only to strengthen the surfaces of walls, but also in the finishing of the concrete bases, basement, attic and hardening liquid intermediate floors.In addition, it is possible to recall a list of other operations, where plaster grid can be used, so it can rightly be called one of the most popular material in the construction works.

Varieties of reinforcing mesh and its purpose

Article Contents

  • 1 Varieties of reinforcing mesh and its purpose
  • 2 reinforcing mesh plastic
    • 2.1 Advantages and plastic grids disadvantages
    • 2.2 Application of plastic mesh
  • 3 fiberglass mesh
    • 3.1 Marking fiberglass reinforcing mesh
    • 3.2 Appointment fiberglass mesh
  • 4 metal mesh
    • 4.1 Woven metal mesh
    • 4.2 grid - netting
    • 4.3 Welded mesh
    • 4.4 masonry grid
    • 4.5 plaster gauze
    • 4.6 selection Criteria metal mesh
    • 4.7 Video: some tips for choosing andthe use of metal mesh for plastering walls

Once almost the only way to reinforce plaster layer was wooden shingles.Nowadays, building materials manufacturers offer customers a very wide range of ready-made nets for building and finishing works.

reinforcing mesh made of different materials and have different, quite diverse destinations, since each of them has its own technical and operational characteristics.

reinforcing mesh plastic

A plastic reinforcing mesh is often also called masonry.modern polymers which have high strength are used for its production.This material can be of varying thickness, with diamond-shaped and square cells of different sizes, so is used in many areas of construction.

Best cheap - plastic reinforcing mesh

most cheap - plastic reinforcing mesh

Advantages and plastic grids disadvantages

Since plastic mesh has great performance potential, it could be called a universal material that has many positive qualities that make it resistant tothe influence of external factors and the environment:

  • Material water resistance.
  • grid is not subject to rotting and corrosion, which positively affects the quality of finish, both inside and outside buildings.
  • quite acceptable resistance to seasonal temperature changes.
  • Environmentally friendly, since the material does not contain allergens and toxins.
  • elasticity and, simultaneously, the resistance to mechanical stress and vibration.
  • plastic mesh can not be fixed on the wall with special fasteners, as it is "planted" on a thin layer of solution that significantly speeds up and reinforces the middle of the plaster layer.
Такая сетка не требует дополнительного крепления - она просто "топится" в штукатурном растворе"

This grid does not require additional fastening - it just "fired" in the plaster »

  • attracted by the reasonable price of plastic mesh - it is lower compared to other reinforcing materials.

The disadvantage of this material is the fact that it is not necessary to apply a solution of a thickness exceeding 6 ÷ 8 mm as reinforcement in this case is useless.And the second - not all plastics are resistant to aggressive chemical environments mortars - alkaline exposure may just eventually dissolve them.

Application of plastic mesh

Reinforcing Mesh is a great strengthening element for walls with plaster, it is used in the lining of the walls inside the building and outside.

Several types of plastic reinforcing grids

Several types of plastic reinforcing grids

For example, interior decorating, for reinforcing joints drywall sheets are often used tape made from this material.When

wall insulation foam slabs or extruded polystyrene, without reinforcing mesh can not do, because there will be no adhesion between the solution and heating materials, and plastic mesh to correct this situation.If no use in this case the grid in the near future there will be cracks on the wall and the plaster will begin to flake off.

Qualitatively plastering polystyrene foam without mesh cover is simply impossible

Qualitatively grout coating polystyrene foam without mesh impossible

Particularly suitable for surfaces such as foam, mesh, having a greater thickness and stiffness - it makes a strong, robust reinforcement when applied plaster.

Quite often this type of mesh used for laying between layers while strengthening the gravel-sand cushions for the foundation, to arrange on unstable soils.

Although the material is produced with cells of different size is considered most applicable square grid having a square size of 5 × 5 mm.Less reinforcement with the outer surfaces of the building, in some cases used with mesh cells 10 × 10 mm.

Fiberglass mesh

reinforcing fiberglass mesh has all the above qualities, inherent in the plastic material, however, an advantage over him can be called by any of its resistance to chemical attack.Mesh made of fiberglass are much stronger and can withstand higher loads on the break.

Fiberglass mesh with their performance characteristics far superior to plastic

Fiberglass mesh with their performance characteristics far superior to plastic

all the main characteristics of fiberglass mesh depends on the density of the surface - it determines the reliability and strength of the material.reinforcing mesh density is measured in grams per square meter - the higher the value, the stronger the reinforcement plaster.

This parameter fiberglass mesh is divided into three groups:

  • for interior decoration.The density of this material is 50 ÷ 160 g / m².In turn, this type is divided into the plaster and the masking grid.Painting has a lower density and cell size of 3 × 3;2.5 × 2.5;2 × 2 mm.Plaster

fiberglass mesh is produced with cells of a 5 × 5 mm or more, and has a higher density.

  • for facade and other outdoor work.This material has a density of 160 ÷ 220 g / m² and is used for plastering and stucco exterior works.His cell typically have dimensions of 5 × 5 and 10 × 10 mm.
  • for basements and underground parts of buildings.The density of the band's material is from 220 to 300 g / m² - this is anti-vandal reinforced mesh that can withstand heavy loads and extreme conditions.This group of materials has a higher price, since they take significantly more raw materials in manufacturing.

Marking fiberglass reinforcing mesh

Purpose grids, depending on their density, specifies marking, which is usually placed on the packaging.As a rule, the following letters and their combinations are used:

«C» - net;

«CC» - fiberglass mesh;

«H» - external works;

«B» - domestic work;

«W» - putty (paint net);

«A» - vandal (basement);

«Y» - reinforced.

also on the packaging often indicate the tensile strength and density.

Symbols accepted rules are used in combination.For example, the marking "SSA 200-4600" will mean that this "reinforced fiberglass mesh", which has a density of 200 g / m², and its tensile strength is 4600 N.

Example standard packaging fiberglass mesh

Example standard packaging fiberglass mesh

Whenmanufacture fiberglass mesh is subjected to special treatment, which increases the resistance of the material to alkaline conditions, as most of the finishing putty and plaster refers to the average and weak alkalis.As the glass fiber impregnation using polyacrylic dispersion which protects the grid from the aggressive influence for a very long time.

Tape fiberglass mesh for reinforcing seams and joints

Tape fiberglass mesh for reinforcing seams and joints

material sold by the meter - paintings typically 1 m wide or in the form of ribbons of different widths - it is used for grouting.For reinforcement corners made mesh, attached to the metal or plastic parts.

Appointment fiberglass mesh

fiberglass mesh used in various construction processes:

  • To strengthen the finishing layer inner reinforcing mesh frame, which will securely hold the facing material over the entire surface of the wall, not letting appear in it cracks and preventingdelamination from the substrate.
  • Grid increases adhesion (adhesion) to the walls of the finishing layer surface due to the relief structure.Putty and plaster not all surfaces can be reliably held.For example, foam, sand-lime brick and other materials solutions can "crawl", so these surfaces reinforcement mesh is a prerequisite finish.
  • Processing seams and joints mesh tape is made for comparing the surface.This material is used in the installation of drywall, foam and other block, panel and sheet materials.
  • Strengthening tape from the grid to the wall joints of door and window units.
  • Strengthening of heat insulation and waterproofing coatings, as well as the reinforcement of self-leveling floors.

If you purchase the material is questionable, and the producer it is not known, in this case, you should ask the seller a certificate or technical certificate, which confirms the basic properties of the material and its antischelochnuyu impregnation.These documents are issued only one organization - "ROSSTROY".

Metal mesh

Metal mesh is used to strengthen not only the plaster finishing layer, but the walls themselves if their surface - is not strong enough.This kind of material can be described as the most common and popular for reinforcing plaster layer on the outside wall.The grid is used not only as the primary reinforcing layer finish, but also for decorative as well as for exterior trim caps and any other concrete, brick and aerated concrete constructions.

for different surfaces, depending on the requirements of thickness and strength of the applied layer, is used with different sized mesh cells, the relief height and thickness of the material from which it is made.

So, for plastering, the following metal mesh.

Woven metal mesh

mesh fabric is so called because it is produced in the same way as the fabric, meaning it has the same weave, only made of metal wire.Types interlacings divided into plain, with cells 1 × 1 mm, with a mesh twill and 1 × 2, 2 × 2 mm or more.

Woven wire mesh

Woven metal mesh

used for the manufacture of galvanized wire, stainless steel or mild steel.The following table shows the main types of produced woven nets:

Grid, woven, galvanized steel

cell size, mm Wire diameter, mm Roll size or card, m (width / length)
2 × 2 0.4 1 × ...
5 × 5 0.7 1 × 50
12 × 12 0.8 1 × ...
14 × 14 0.8 1 × ...

woven mesh of low carbon wire GOST 3826-82

cell size, mm wire diameter, mm roll size or card, m, (width / length) m² Weight, kg
0,8 × 0,8 0.32 1 × ... 1.11
1 ×1 0.32 1 × ... 0.94
1,2 × 1,2 0.32 1 × ... 0.82
1,2 × 1,2 0.4 1 × ... 1.3
2 × 2 0.4 1 × ... 0.87
2 × 2 1 1 × ... 4.44
3,2 × 3,2 0.5 1 × ... 0.87
4 × 4 1 1 × ... 2.59
5 × 5 0.7 1 × ... 1,0
5 × 5 1.2 1.5 × ... 3,0
10 × 10 0.8 1 × ... 0.5
14 × 14 0.8 1 × ... 1.53

thickness of the wire from which such lagging grid splits it into subtypes - alight, medium and heavy mesh.

grid - netting

This type of grid is the hottest of all the metallic mesh materials.It received its name after its inventor Karl Rabitz, who first demonstrated it in 1878, and since then it gradually became widespread around the world.

Anyone familiar - mesh netting

all familiar grid-netting

Today netting is made from carbon steel, high alloy, galvanized steel wire, which can often be more and the polymer coating.Netting with PVC coating - more durable, since it is not subject to corrosion and good resistance to external impact, but this kind of mesh is commonly used to build fences and manufactured in different colors.Make

netting by twisting wire diameter of 1 ÷ 3 mm in a spiral, and then with each other in the overall fabric mesh.

This kind of wire mesh is often used for processing by a wall constructed of adobe or clay before applying them plaster.Grid creates a reinforcing relief layer, which is capable of holding a large amount of plaster, and thicker than it should be, the larger must be the cell.

In the tables below are the main types of netting used for plastering:

Grid wattled "netting" of not galvanized wire

size cells, mm Wire diameter mm Roll size orcards, m, (width / length) Weight m² kg
6 × 6 1.2 1 × 10 1.11
8 × 8 1.2 1 × 15 0.94
10 × 10 1.2 1 × 10;1.5 × 10 3.55
15 × 15 1.2 1 × 10;1.5 × 10 3.03
20 × 20 1.4 1,5 × 10 1.55
6 × 6 1.2 1 × 10 1.25
8 × 8 1.2 1 × 15 1.52
10 × 10 1.2 1 × 10;1.5 × 10 3.55
15 × 15 1.2 1 × 10;1.5 × 10 3.03
20 × 20 1.4 1,5 × 10 1.55

Grid wattled "netting" of galvanized wire

The size of the cells, mm wire diameter mm roll size or card, m, (width / length)
10 × 10 1 1 × 10;