For your home to remain durable and attractive, plastering the outside walls is a necessary chore. A well-applied plaster can make a big difference, whether your goal is to protect your walls from bad weather or to improve their aesthetic appeal. This tutorial will walk you through the processes required to get a flawless, long-lasting finish.
It’s important to properly prepare the wall surface before you begin. To do this, the walls must be cleaned to get rid of any dust, debris, or loose materials. Plaster adheres more readily to a clean surface, producing a more even and long-lasting finish. It’s also important to fix any holes or cracks to give the plaster a strong foundation.
Selecting the proper plaster mixture is an additional crucial step. The mixture, which usually consists of cement, sand, and water, needs to be appropriate for outdoor usage. Plaster that is properly proportioned will be robust enough to endure outdoor environments. To further protect against moisture, it is advantageous to incorporate a waterproofing agent into the mixture.
Plaster application involves some skill, but professional results can be achieved with careful attention to technique. Using a trowel, begin by evenly spreading a base coat onto the wall. Apply the second coat after the base coat has dried, smoothing it out to get the desired texture. Control and consistency are better maintained when working in small sections.
Lastly, give the plaster time to properly cure. In order to avoid the plaster drying out too quickly and cracking, this usually entails keeping it wet for a few days. Your freshly plastered walls will be both aesthetically pleasing and weatherproof once they have fully dried.
Step | Description |
1. Prepare the surface | Clean the wall, remove dirt, loose material, and any existing paint. |
2. Apply a bonding agent | Use a bonding agent to help the plaster adhere better to the wall. |
3. Mix the plaster | Combine plaster with water according to the instructions until it reaches a smooth consistency. |
4. Apply the first coat | Spread a thin layer of plaster on the wall with a trowel, covering the entire surface. |
5. Smooth the first coat | Use a straight edge to level and smooth the first coat of plaster. |
6. Apply the second coat | After the first coat has set, apply a second, thinner coat of plaster. |
7. Finish and texture | Once the plaster is partly dry, use a trowel to smooth or create a desired texture. |
- Plastering outside walls – advantages of finishing
- Which material is best suited for plastering external walls?
- Finishing a house with plaster – types of compositions for protecting walls from the outside
- Mineral compositions
- Acrylic plaster
- Silicate composition
- Silicone mixture
- How to plaster external walls – technology for carrying out finishing works
- Choosing a material for plastering external walls
- Preparation of walls for application of finishing mortar
- Fixing special beacons
- Applying external plaster to the facade of the house – finishing rules
- How to properly plaster external surfaces – protection of problem areas
- Exterior wall finishing – finishing operations
- Video on the topic
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- Simple facade plaster, application to the wall
- Plaster of brick walls outside.
- Clay wall plaster. How to plastered a clay wall
- Formation of the outer angle during wall plaster with gypsum composition Work with rails!
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- Eternal plaster in the basement for "cheaper" from cement and sand. part 1.
Plastering outside walls – advantages of finishing
After drying, the plaster layer in contact with the house’s wall surface offers dependable facade surface protection.
External plaster provides numerous benefits and resolves a number of significant issues:
- protects walls from the effects of precipitation, protects the facade of the building from moisture absorption;
- ensures unimpeded steam release regardless of the thickness of the plaster layer;
- effectively soundproofs the room;
- reliably insulates the facade of the building, this helps reduce heating costs;
- has increased adhesion to the surface of walls erected from various materials. The plaster layer adheres to brick, stone and foam plastic;
- improves the appearance of buildings. If necessary, it is easy to repaint the plastered surface in the desired color;
- is not afraid of shrinkage, temperature changes and deformations;
- is easy to apply to the surface. For plastering the facades of buildings, the construction of a frame structure is not required;
- is quickly repaired if there is damage. Local defects are quickly eliminated with the necessary finishing composition.
Changing the surface’s texture and using a finishing mixture at a reasonable cost are two more noteworthy benefits of facade finishing. Using contemporary plaster compositions will help to lower the facade’s finishing costs. Expensive equipment and specialized tools are not needed for adorning and protecting the building’s walls.
Which material is best suited for plastering external walls?
It is crucial to take into account the material of the building’s facade when doing finishing work.
External wall plaster works well with the following materials:
- hardened cement;
- reinforced concrete panels;
- natural stone;
- natural wood;
- ceramic brick;
- concrete blocks.
Different kinds of façade surfaces need to be prepped:
- Wooden walls should be thoroughly impregnated with protective mixtures to prevent wood rotting. To improve adhesion to a wooden surface characterized by an increased coefficient of expansion, you should attach a reinforcing mesh, install lathing, or attach sheet insulation.
- Concrete facade provides increased adhesion to the plaster mixture. However, the porous surface of the concrete mass absorbs moisture at an accelerated rate. To seal pores, surface treatment of concrete is performed with deep penetration primers. Joint areas of reinforced concrete panels should be sealed with cement.
- Brick walls are a proven base that ensures reliable fixation of the applied plaster mixture. The rough surface of the brick contributes to improved adhesion of the plaster. To ensure the adhesion of finishing compounds to brick facades, additional pointing of the masonry joints is performed.
While choosing a plaster mixture to coat and embellish the building’s facade walls, consideration must be given to the characteristics and attributes of the finishing material.
External wall plastering is a simple process that can dramatically improve your home’s durability and appearance. You must correctly prepare the wall surface, select the appropriate plaster mix, and apply it using the appropriate technique in order to get a smooth, durable finish. This include washing the wall, caulking any cracks, and spreading and smoothing the plaster with trowels and floats. You can prevent weather damage to your walls and create a tidy, appealing exterior by following these steps.
Finishing a house with plaster – types of compositions for protecting walls from the outside
Plastering materials for exterior walls are available in a wider range of selection in specialty stores.
The types of finishing compositions are as follows:
- plaster mixtures based on cement or lime.
- acrylic compositions on a polymer base;
- silicate plasters containing liquid glass;
- silicone solutions including fine-grained filler.
Every kind of plaster has benefits and drawbacks of its own.
Mineral compositions
They come in a dry mixture with filler, binder, and unique additives. Because binders are inexpensive, one unique quality of mineral compositions is their low cost.
The primary benefits of cement plaster are:
- environmental friendliness;
- fire safety;
- durability;
- good adhesion;
- water-repellent properties;
- resistance to the development of microorganisms and the formation of mold;
- noise protection characteristics;
- thermal insulation properties.
The primary drawbacks of mineral plaster are:
- limited color range;
- plaster cracking during shrinkage of the building.
Acrylic plaster
Sold ready to use, it makes good contacts with brick, concrete, stone, and wood to stop cracks from forming. The plaster is a dispersion solution with acrylic, a polymer, as a constituent.
The final composition offers several benefits.
- good vapor permeability;
- resistance to temperature fluctuations;
- increased elasticity;
- ease of application;
- resistance to moisture penetration;
- texture.
When acquiring the mixture, it is important to consider the limitations of acrylic plaster:
- need for regular renewal;
- gradual destruction under the influence of ultraviolet radiation.
Silicate composition
It is supplied ready to use and contains liquid glass. Benefits of plaster mixture application on a silicate basis:
- improved vapor permeability properties;
- reasonable price;
- surface resistance to contamination;
- variety of color shades.
Dust does not remain on the treated surface for long because of the decreased electrostaticity. The drawbacks of silicate plaster include:
- cracking of the protective layer during shrinkage of the building;
- problematic use for finishing aerated concrete walls.
Silicone mixture
Because it contains ingredients that are polymers, its price is relatively high. Characteristics of the working composition include:
- increased vapor permeability;
- high elasticity;
- self-cleaning properties;
- long service life.
For the duration of their use, silicone mixture-coated walls don’t need to be washed or cleaned. The material’s primary drawback is the higher cost of finishing supplies.
How to plaster external walls – technology for carrying out finishing works
Consider the needs of the technology carefully before starting to plaster the facade. It stipulates the following work phases:
- Choosing a finishing material.
- Preparing the outer surface of the walls.
- Installing guide elements.
- Application of the plaster mixture.
- Fine finishing.
Every stage has unique qualities. Let’s ponder them in greater depth.
Choosing a material for plastering external walls
Take into consideration the following factors when selecting an appropriate mixture for finishing work:
- performance properties;
- shelf life of the plaster composition;
- manufacturer rating;
- reviews of professional builders;
- adhesion of the finishing mixture.
Examine the material’s adhesive qualities as well as whether further application preparation is required.
Preparation of walls for application of finishing mortar
When it comes to the surface preparation of the facade walls, you should exercise caution. The quality of plastering operations is impacted by their state.
Assemble the wall surfaces using the following algorithm:
- Remove old plaster with a chisel and hammer or use a hammer drill for this.
- Clean the surface from finishing residues, sweep away dust, remove grease and oil stains.
- Make a cut in the brick seams by widening and deepening the joint areas.
- Remove bumps, seal existing cracks and level out height differences with putty.
- Apply a deep penetration primer to the wall surface and wait until it dries.
- Fix a plaster mesh with square cells of 20-25 mm on the outer surface.
If there are notable variations in the walls’ levelness, a thicker layer of plaster mixture will need to be applied. This results in a higher material consumption and raises the possibility of peeling plaster in trouble spots. Once the setup is finished, move on to the next phase.
Fixing special beacons
Metal profiles are used to make beacons, which are fastened to the walls firmly and periodically. With the aid of guides, you can use a rule to smooth out the plaster mixture and guarantee a flat finish.
There are several things you should do in order to install beacons:
- Check the verticality of the walls using a level or plumb line.
- Cut the beacons to the height of the walls.
- Step back 20-30 cm from the edge and draw a vertical.
- Apply a thick solution to the markings at intervals of 0.5-0.6 m.
- Put the guide on the markings and press it into the solution.
- Adjust the verticality of the beacons using a level.
- Remove the solution that has flowed onto the surface of the guides.
- Fill the cavities under the beacon after the mortar has set.
Consider the length of the rule when calculating the spacing between the guides. A 1.5–1.8 m distance is the ideal spacing between the beacons.
Applying external plaster to the facade of the house – finishing rules
The material is applied in a sequential manner in plastering technology.
- First, a diluted solution is thrown on. Polyvinyl acetate glue should be added to it and water should be introduced until a sour cream consistency.
- After drying, the main layer of plaster is applied. It is necessary to evenly distribute the finishing composition over the surface, ensuring a layer thickness of no more than 50 mm.
- Finishing activities are completed with grouting. A wooden or foam float is used to smooth out irregularities and seal cracks. Grouting should be done in circular motions.
After five days, when the plaster is completely dry, move on to the final finishing.
How to properly plaster external surfaces – protection of problem areas
Areas with corners and surfaces next to window and door openings are problem areas. Patch up trouble spots with common equipment.
Keeping the following things in mind:
- thoroughness of sealing defects on the surface;
- uniformity of filling cavities with plaster mortar;
- flatness of the finishing composition after grouting.
Correct grouting technique is essential. Make spiral-shaped leveling movements first, then work your way up to a larger circle by starting with a smaller diameter.
Exterior wall finishing – finishing operations
Finishing is the last stage of the work process. Potential choices:
- creation of decorative splashing;
- painting the surface in the desired color;
- formation of a rough surface.
Selecting the best finishing option is done on an individual basis.
Adding external plaster walls to your home is an essential step in making it more beautiful and safe. It provides the walls with a smooth, appealing finish in addition to protecting them from inclement weather. You can guarantee a strong and long-lasting plaster job by using the right materials and applying the right techniques.
The secret to a successful plastering project is preparation. Start by giving the walls a thorough cleaning to get rid of any dust, loose debris, or outdated paint. Using a bonding agent improves the plaster’s adherence to the wall surface. After the walls are prepared, properly mix the plaster to ensure a smooth and easy application.
Work in small sections, starting at the top and working your way down when applying the plaster. Spread the plaster evenly with a trowel, pressing down hard to remove any air pockets. In order to prevent uneven drying and cracking, aim for a consistent thickness. Apply a second coat for greater strength and a more polished finish after the first coat dries.
The final details really make the difference. Use a float or sponge to smooth out any imperfections, and remember to keep the surface slightly damp to avoid drying out and cracking too soon. You can paint your walls or apply other finishes to improve their appearance after the plaster has completely dried.
External wall plastering can be a difficult do-it-yourself project, but with perseverance and close attention to detail, it can be a rewarding experience. The finished product gives your house an additional degree of security in addition to being aesthetically beautiful. Enjoy how your outside walls turn out while taking your time and following the instructions.