Decorative plaster under a fur coat is the most affordable and versatile way of facing facades. The finishing technology consists in applying a thick cement-sand layer to the wall, followed by giving it the necessary chaotic textured pattern and the required volume. This method has been used for more than a dozen years.
Previously, the "fur coat" performed primarily protective and insulation functions. Today, in the presence of a huge number of available thermal insulants, the role of volumetric plaster is more to provide a decorative effect.
Peculiarities
A traditional solution for applying plaster under a fur coat is a mixture of sand and cement, taken in a 1: 3 ratio and diluted with water to the desired consistency.
The sand is selected in accordance with the requirements for the formed surface: when making a rough rough "fur coat", you should take mountain or ravine sand, and to obtain a smoother texture, you should use fine-grained quartz.
Sift the sand before adding it to the solution. Lime, gypsum and clay can be used as the main binder.
Ready-made dry mixes on an acrylic basis are considered the most modern and convenient to use.... The material is available in white, gray and color, which allows you to purchase a ready-made composition of the desired shade or paint it yourself. Coloring is done with coloring powders and pastes.
The disadvantage of self-staining is the need for strict adherence to the proportions of the dye, if deviating from which, a difference in shade between solutions of different mixes is possible. In order to avoid problems with coloring the mixture, you can resort to the method of painting the finished surface after it has dried. Painting is carried out using moisture-resistant and light-resistant facade paints, which solve not only a decorative problem, but also perfectly cope with the elimination of small cracks.
Advantages and disadvantages
The popularity of plastering walls under a fur coat is due to a number of indisputable advantages of this finishing method:
- Low cost and wide availability materials for mortar allow you to quickly and inexpensively improve the facade and insulate the room.
- Wide range of colors ready-made compositions and the possibility of self-coloring allows you to choose a material for every taste. The colored "fur coat" perfectly transforms the facades of houses and refreshes the interior of the premises.
- Ease of installation makes it possible to make the facade cladding independently, without the use of expensive equipment and the involvement of specialists.
- Excellent sound and heat insulation properties material will reliably protect the walls from freezing, and the room - from extraneous noise.
- Aesthetic and neat appearance"Fur coats" are in no way inferior to the surface, lined with expensive facade plaster.
- High performance of wall protection from the aggressive effects of external factors are due to the good moisture and heat resistance of the material, as well as its ability to withstand mechanical stress. "Fur coat" is not of interest to rodents and insects, and is not a favorable environment for the development of mold and mildew.
The disadvantages of plastering under a fur coat include the tendency of the coating to accumulate dust and small mechanical debris, as well as some obsolescence of the technology. There is also a not very harmonious combination of "fur coat" with ultramodern styles of facade decoration and landscape design.
Ways of forming a "fur coat"
Applying the mortar to the wall can be done in several manual ways:
- With a broom... This is the oldest cladding method, which consists in the following: an ordinary broom is dipped in a solution and hits a wooden stick, which is placed close to the wall. As a result of the impact, directional splashes are formed, which fly onto the wall and settle on it. The disadvantage of this method is the long installation time and the need for certain skills for uniform application of the solution. Another method of spraying is the method using a stiff brush and a block of wood, which is dipped into the solution and sharply swept over the stiff bristles of the brush. The method also requires experience.
- Using a roller... The method consists in applying a thin layer of mortar to the wall and then rolling it with a textured roller. The method does not require plastering skills and is well suited for people who are new to facade cladding and interior decoration. After initial drying, it is recommended to treat the surface with a wet trowel, due to which the formed "fur coat" will resemble a cork texture.
- Using a grid... A rather relevant method, the essence of which is that a fine-mesh mesh is fixed on the wall, on top of which the solution is applied. Then the mesh is carefully removed, resulting in a classic "fur coat".
- With a trowel and a spatula... In this case, a solution is applied to the wall in a thin layer, after which the desired structure is created with a trowel. To do this, attach the tool to the wall in such a way that it is imprinted into the solution, and then abruptly tear it off. The result is a rather rough texture, which is recommended to be slightly smoothed with a wet trowel after the initial setting of the composition.
There are also mechanized methods of applying mortar:
- Compressor and hopper... The fastest method that allows you to monitor both the uniformity of the coating and the texture of the formed "fur coat". The use of this technique allows you to independently adjust the size and shape of the drops, which provides ample opportunities for giving the "fur coat" almost any structure.
- Homemade sprinkler... The device is a container for mortar with a shaft placed in it, which is equipped with rigid wire cables, slightly fluffed at the ends. The shaft is driven by a handle. When it rotates, the mixture is captured and sprayed along the wall, and the thinner the wire, the finer the textured coating is.
Installation steps
The first step is to thoroughly prepare the surface. It is necessary to remove the old coating from the wall and eliminate large defects. Cracks and chips should be covered with a cement-sand mortar, and large protrusions and curvatures should be cut off with a grinder. After the solution has dried, the surface must be dust-free and primed.
After complete drying of the primed surface, you should start preparing the working mixture. Stir the components until a homogeneous creamy mass is obtained. For better mixing and shorter mixing times, it is recommended to use a construction mixer or paddle drill.
The second stage will be the formation of the draft layer. The mortar should be applied with a trowel, followed by leveling the formed layer using a rule. Then you need to apply another layer up to 10 mm thick.
The third stage is to apply the "fur coat". The method by which the decorative surface is formed is selected individually, and depends on the technical capabilities and the desired result.
To achieve decorative effects, a little crushed marble or glass, red iron ore, white asbestos or ground coal can be added to the solution.
