How to properly plaster walls, tips and recommendations of professionals

Welcome to "All about the facades of the house," where we’ll explore the fundamentals of caring for and enhancing the outside of your house. Proper wall plastering is an essential part of maintaining your facade and can greatly improve your home’s durability and aesthetic appeal. Knowing the fundamentals of wall plastering is crucial whether you’re updating your property or remodeling an older house.

Plastering walls is more than just painting them pretty; it’s also about making a smooth, resilient surface that shields your walls from damage and moisture. Plastering, when done properly, can improve fire resistance, act as insulation, and conceal flaws. However, plastering alone isn’t enough to produce a polished finish. It entails painstaking planning, selecting the appropriate supplies, and developing skills that guarantee an impeccable result.

Expert plasterers stress how crucial preparation is. Make sure your walls are dust-free, dry, and free of loose debris before applying any plaster. Use the proper fillers to fix any holes or cracks, and think about priming the surface to increase adherence. A smoother application and a longer plaster lifespan are both facilitated by proper preparation.

Selecting the proper plaster mixture is essential. Traditional lime-based plasters and contemporary gypsum compounds are among the options; each has advantages and disadvantages with regard to workability, durability, and finish. To ascertain which kind best fits your unique requirements and the environmental circumstances of your house, speak with an expert or conduct a thorough investigation.

Why is plastering?

Plastered walls serve as the foundation for finishing. Whether you choose to paint the wall, apply wallpaper, install tiles, or use decorative plaster, you’ll need a level surface, which plastering provides.

Types of plasters

• Cement-sand plaster (CPSh), despite the abundance of other compositions, remains the most popular, as it is universal. It is indispensable for black decoration in rooms with a wet and humid operating mode – baths, saunas, laundries, bathrooms, showers and bathrooms. The solution is kneaded from 1 part of cement and 2.5 … 4 parts of sand, or finished dry building mixtures (CCC) are diluted. CPSH is characterized by cheapness, convenience in work, since for a long time drying allows you to improve flaws. Of the shortcomings, labor capacity, possible formation of cracks, long drying can be mentioned.

• Lime plaster settles faster than CPSh, can be used on different surfaces. Prepared from 1 part of lime dough and 3 parts of sand. To harden the composition, add PVA glue. Lime plaster is easy to apply and grout, it is more plastic than cement, but can crumble as a result of mechanical damage. Also does not differ in high cost.
• The cement-lime composition is more quickly grasped and more plastic than CPSh, more resistant to mechanical damage than pure lime, and therefore is often used for interior decoration of apartments.
• The lime-hilt composition is used for plastering of living rooms, the solution is prepared from 1 part of dry gypsum, which is shut up with water to the consistency of liquid dough, and 3 parts of the lime mortar. The advantage of the composition is quick setting, it is also the biggest drawback, as it requires speed during operation.

For decorative compositions containing crushed shells or marble crumbs, pure river or sea sand with varying fractions of grains is utilized as a filler. Quartz sand is another option.

The surface quality of the following plaster varieties sets them apart:

• A simple, consisting of two layers – spraying and a covering layer, with a total thickness of 10 mm, is performed in non -residential rooms and under the cladding with tiles;
• The improved is performed in 3-4 layers – spray, soil and layer covers, a total thickness of 15–20 mm, is most often used in residential and office premises;
• high -quality, performed according to lighthouses, in 5 layers, 20-30 mm thick, for especially critical interiors, decorative compositions are often applied with the last layer.

In order to preserve basic cement-sand plaster, thin-layer plasters made of polymer compositions are also used.

The process of applying plaster to the walls

Efficient completion of preparatory work is necessary to ensure the plaster adheres well to the wall. During the winter, when heating is on, all finishing work is done at positive temperatures (at least 12 ° C).

Preparatory work

The area of work, the type of plaster, and the quantity of materials needed must all be determined during the preparatory stage. Additionally, the procurement of supplies, instruments, devices, equipment, and work clothes is done.

• adhesive primer to improve adhesion of the plaster layer with the base;
• finished CCC for a solution or components for mixing;
• putty – for coloring and wallpaper;
• Lights for high -quality plaster – metal, plastic or drywall for manufacturing independently;
• perforated corners for corners and slopes;
• Putin grid;
• Grinding skin.

• Bucharda for filling irregularities on concrete;
• Master OK;
• trowel;
• falcon;
• half a house;
• rule;
• plumb, cord;
• maclovice;
• building level.

Method and tools:

• Drill with nozzles;
• construction mixer;
• science for working at heights;
• tank for the solution and washing the tool.

Overalls: shoes, gloves, overalls, and protective glasses.

Surface cleaning

Cleaning the surface of old walls involves removing all paint and plaster residue. Depending on the material (concrete, brick, gas mosilite, wood), the new wall must be prepared. Cleaning can be done chemically or mechanically.

Large areas of concrete are cleaned of paint using a unique chemical solution; in separate construction, scrapers are used to clean individual sections; after that, metal teeth are used to clean the surface, and water is either blasted or washed.

Preparation of walls

Using a spray gun or a manual maclovic method, an adhesive solution is applied to the cleaned and dried surface to prime it. They hydrate before applying the wall.

Regarding materials that absorb surface moisture weakly, OSB, chipboard, drywall, and fiberboard are primed and exhausted prior to plastering in order to improve adhesion.

Installation of lighthouses

Executing high-quality plastering, perhaps without the need for lighthouse installation, but this calls for a loaded, sure hand. Plastering the lighthouses will yield the best results if you lack experience.

Lighthouses can be made from moisture-resistant drywall, plastic, or galvanized metal. Although metal is strong, it can rust and cause red patches to appear on the surface.

Plastic ones do not have this problem, but because they are made of pricey material, they are also more expensive. Cutting moisture-resistant drywall strips to the necessary thickness for the plaster layer is a more cost-effective solution, but installing them is more challenging.

Prepared beacons are fastened to screws, ensuring that the horizontal and vertical levels are met. The lighthouses are installed, starting from the left corner of the space and mounting the first one 320 cm from the ceiling and wall’s angle. The second is the lighthouse, which is located on the other side of the wall. After that, intermediate is positioned on the lower and upper faces of the beacon by pulling cords along them, a distance that is 10-15 cm shorter than the length of the rule.

Preparation of the solution

It can be difficult to prepare the solution properly, but there are a few easy guidelines you can follow to achieve the best outcome:

• For better setting in the cement-sand and lime solution, you can add a little PVA glue;
• For a lime solution, it is better to use the lime dough, since it is to extinguish lime yourself is unsafe;
• The binder is introduced into the solution with a thin stream during continuous mixing.

Phases in the plaster mixture preparation process

Various manufacturers, like Rothband from KNAUF, create dry mixtures in bags of varying sizes to prevent sand from self-sewing while measuring in the proper ratio of binder to filler.

Spray

The first layer, known as spray, is applied to the wall by hurling a solution containing a cell. The answer ought to be as simple as a cake. The spray’s wrapped edges, which flow downward and reveal an excess of moisture, show that there is not enough water in the solution. Next, a grater is used to distribute the applied solution across the surface.

Sprinkles are applied using captures up to one meter in height and width. The excess solution is then removed by the rule using zigzag movements and beacon support after 20 to 30 minutes.

Spraying is not necessary for thin-layer plasters or even surfaces with good adhesion (foam concrete, gas storage).

Priming

The second layer, called soil, is applied in the same manner but with a layer that is no thicker than 1.5 mm. Two hours later, the half-terrain is perfectly leveled, and the wall is wet with water and resmoothed with the half.

Covering

Covering: a final plaster layer that is not necessary for later cladding or skin. A 1-2 mm coating is applied, and once the solution is grasped, the surface is wiped with a falcon in a circular motion for a scope, followed by vertical and horizontal scrubbing.

Difficult to displayed areas

Particular attention needs to be paid to the ceiling and the room’s angles. Wall strikes that run along the edges of adjacent surfaces are plastered in the final turn, either with a special tool or in alignment with a cell at a right angle.

If there is insufficient room for work, the wall behind the battery can be leveled and dispersed using the one-permanent short rule.

The stucco is finished by pasting wallpaper, painting, cladding, or applying a decorative composition after ripening for three to four weeks, depending on the composition used.

Not only is proper plastering of walls important for appearance, but it also preserves your home’s structural integrity. It’s a skilled craft that needs the proper methods and attention to detail to produce a finish that is both smooth and long-lasting.

First, give your walls a thorough cleaning. Make sure the surface is clean and dry, fill in holes and cracks, and remove any loose paint or old plaster. This first step is crucial because it lays the groundwork for a plastering job well done.

Selecting the appropriate plaster mixture is an additional crucial factor. Experts frequently suggest a mixture that strikes the ideal balance between bonding agents, aggregates, and water to achieve the proper consistency and strength, depending on the type of wall and the desired finish.

Plaster application calls for expertise and technique. To ensure a strong bond with the wall surface, start with a scratch coat. To get the required level of smoothness, apply a second, smoother coat after this. Before moving on, each layer needs to be applied evenly and given enough time to dry.

Appropriate curing is essential after plaster is applied. To avoid cracking, this entails keeping the plaster damp and letting it dry gradually. The best curing conditions can be achieved by using methods like misting the plaster or covering it with moist cloths.

Last but not least, finishing touches have a big impact. Achieving a plastered wall of professional quality involves sanding down any imperfections, applying a final coat if needed, and making sure the surface is clean and ready for painting or decorating.

You can make sure that your plastered walls not only look fantastic but also endure over time, giving your house a sturdy and appealing foundation, by paying attention to these expert advice and tips.

An article titled "How to properly plaster walls: tips and recommendations from professionals" for a website specializing in home facades would aim to walk readers through the necessary steps and provide professional advice for achieving high-quality wall plastering. The article will cover everything from surface preparation to applying various plaster types, stressing the significance of careful cleaning, priming, and material selection. Additionally, it will cover methods for attaining flawless finishes and guaranteeing resistance to weather and wear. Homeowners can use efficient plastering techniques to increase the visual appeal and longevity of their home facades by paying attention to these useful insights and expert advice.

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