Warm plaster for interior works: review, specifications, reviews

Warm plaster for interior works is a very unusual and new for many construction and finishing materials, which appeared relatively recently in the domestic market. Accordingly, it is quite natural to consider the question of what kind of building mixes - warm plasters - and how to use them.

Composition of warm plaster

Warm plaster for interior works is a dry mix based on ordinary cement. The difference from the classic solution is the absence of sand in the composition. It can be replaced by any other components:

• Perlite sand.
• Expanded clay.
• The powder obtained from pumice.
• Expanded polystyrene granules and other materials.

Varieties of warm plaster

There are several types of warm plaster. The building mixes differ in composition, area of application, method of application and technical and operational characteristics.

Among the most popular are the following three types of plaster.

Warm plaster with expanded vermiculite

Expanded vermiculite is a light mineral aggregate obtained by heat treatment of vermiculite rock. Warm plaster with the addition of such a component is used mainly for outdoor works. Despite this, it can also be used for interior finishing - it is a universal building material. Among the advantages of vermiculite warm plaster is the excellent antiseptic properties.

Cutting plaster

Warm plaster for interior works, which is very popular and not intended for exterior finishing - the so-called sawdust mixture. It consists of sawdust, particles of cement, clay and often paper. Actually, it is for this reason that it is not used in outdoor works.

This mixture is ideal for application on wooden and brick surfaces. The applied plaster layers should dry only if the room is well ventilated. Full drying takes about two weeks. In a closed room on the surface of the plaster can develop fungus and mold.

Plaster with expanded polystyrene granules

Another good form of plaster is a mixture with the addition of expanded polystyrene granules. Its composition, in addition, includes cement, lime, various additives and fillers. Apply it mainly for exterior finishing works, but it can be used for internal.

Plaster with expanded polystyrene granules is the most common, in contrast to the other two species.

Application of warm plaster

To date, dry mixtures of this type are used in the following areas:

• Finishing with plaster facades of buildings and their thermal insulation.
• Additional insulation and sound insulation of exterior and interior walls of buildings.
• With the use of a sludge masonry, the walls are warmed.
• Warming of sewage drains, hot and cold water supply pipes.
• Warming of window blocks and slopes in places where they are adjacent to walls.
• As a heat-insulating and soundproof material for interior finishing works.
• Experts advise the use of warm plaster as a material for the insulation of floors and ceilings.

Advantages of warm plaster

• Rapid application of plaster - for the day of work it is possible to cover the surface in 110-170 sq. M. M.
• Does not require the use of reinforcing mesh.
• There is no need to level the walls if warm plaster is used for interior work.
• The mixture has excellent adhesion to any type of surface.
• There is no risk of cold bridges, since there are no metal bonds.

disadvantages

• The mixture does not belong to the category of finishing coatings and requires the application of not only a primer, but also a layer of decorative plaster.
• Unlike cotton wool or polystyrene, the thickness of warming by a warm composition is several times greater.
• Not entirely economical is spent plaster - the price for it, by the way, is not that low.

Where should I use warm plaster?

Based on all the pros and cons of this dry mix, it is best to use it in the following jobs:

• Sealing joints and cracks in the ceilings and walls of buildings.
• For internal works in case of additional insulation, for example, when it is impossible to conduct isolation procedures outside the building, a cladding is installed, which will deteriorate during disassembly.
• Finishing of window slopes.
• Warming of the plinth.

Technology of application of warm plaster

The base before the application of a dry mixture of this type is prepared in the same way as before applying a conventional plaster on a cement base. Remains of other materials, dust and dirt are carefully removed. If necessary, the surface can be treated with special formulations or a primer in order to strengthen and improve adhesion.

An important requirement - before starting the plaster application, the substrate must be thoroughly moistened with water.

Sequencing:

1. The dry mixture is poured into a pre-prepared container of at least 50 liters capacity.
2. Add pure water in the amount indicated on the plaster pack.
3. With the help of a construction mixer, the mass is mixed.
4. The life of the finished mixture is 120 minutes.

Check the consistency of the resulting mixture is very simple - a small amount of solution is collected on the trowel, after which the tool is turned over. A qualitatively mixed mixture should not fall off it. Ready plaster can be applied both manually and mechanically.

• Warm plaster is applied to the surface of the base with special construction tools in several layers, and the thickness of the layer should not exceed 2 cm.
• Each subsequent layer is applied 4 hours after the previous one.
• The drying time of each layer can vary depending on the humidity level of the air.
• Apply warm stucco movements from the bottom up.
• Checking the applied layer is carried out three to four weeks after all work is done.
• A full set of plaster strength occurs within one to two months.

Errors in the application of warm plaster

During the internal finishing works with the use of warm plaster, it is often possible to make some errors, especially if they are not specialists. As a result of this, delaminations, cracks or changes in the geometry of the entire room can occur due to the too thick applied layer.

The quality of the plaster works is checked quite simply: for this, a rake rule is applied to the surface. If there are gaps between the tool and the wall, there are violations of geometry.

When applying plaster, the most important thing is to avoid deviations from the vertical or horizontal more than 3 mm.

Dry Mix Consumption

Plaster is used (the price for it varies within 200-900 rubles per package), depending on the thickness of the layer: about 10-15 kilograms per square meter of the base.

If the work is done by specialists, then it will be necessary to pay about $ 15 for their services, not counting the cost of the materials and tools themselves.

Plaster layer thickness

Depending on the thickness of the walls, the material from which they are made, and the climatic zone in which the building is located, the size of the finish layer also varies. According to standard calculations, a brick wall 51 cm thick can be insulated by applying a layer of plaster to it at 8-10 cm. Of course, such a mixture consumption is simply huge and irrational, so it is best used as an additional material. Unlike classic brick, aerated concrete or ceramic blocks require much less plaster layer.

The standard thickness of the material recommended by the manufacturers is from 2 to 5 cm. It is quite simple to calculate the required amount of the mixture, in addition, it is supplied in separate packages weighing 7-10 kilograms. The standard amount of plaster is enough, as a rule, to apply a layer of 2-2.5 cm per square meter of surface.

Plaster "Knauf"

Dry mix "Knauf" - rather expensive finishing material, which has good thermal insulation and water-repellent properties. A safety warmer, it is easily put on the prepared basis. Among its advantages are vapor permeability, resistance to weathering, absolute environmental friendliness and additional surface warming.

Stucco "Knauf" - the best option for interior finishing.

Reviews of the plaster of this brand confirm the words of the manufacturer. According to consumers, the dry mix is easily kneaded, applied to the surface and has good adhesion. The plaster dries quickly enough, which is rather a plus than a minus. The finished coating has a pleasant beige-pink shade.

Dry mixes "Umka"

In the domestic market, plaster "Umka" is in great demand, which is intended for both external and internal finishing works. It has good heat, sound and waterproofing properties.

The plaster is absolutely safe and environmentally friendly, it has low hydrophobicity, thermal conductivity and a high level of porosity. It includes mineral filler, which significantly increases the strength of the finished base. Silicon beads, used as a filler, significantly reduce the weight of the solution and increase its resistance to pressure.

Stucco mixture "Teplover"

"Teplover" - plaster, which includes vermiculite. Due to this component, the composition has a low density and thermal conductivity of the finished layer.

The mixture is highly resistant to moisture, which allows it to be used both for outdoor work and for interior finishing of rooms with high humidity.

Recommendations for the use of warm plasters

Such finishing materials can be used to eliminate third-party sounds. For example, to isolate "air noise" (TV noise, conversations, car engines) by means of warm plaster, it is necessary to choose a composition with fibrous structure and purity. The thickness of the layer should be within 0.5 cm. To eliminate "shock noise" - the sounds of footsteps, falling objects and knocking - you need to acquire plaster with high elasticity.

Warm compositions, unfortunately, do not possess similar properties, therefore, most likely, their heat-insulating qualities are somewhat overestimated.

Manufacturers produce not only classic plasters, but also special mixtures that are used for the purpose of warming roofs, ceilings, internal surfaces and floors. They can be applied for any reasons, but despite this, the packages often indicate that it is best to work with smooth smooth coatings - for example, aerated concrete or ceramic blocks. Before applying the warm plaster to the surface, a normal vapor permeable mixture can be applied.

Finishing material of this type can be used for both exterior and interior works. However, the use of warm plaster is not always appropriate - often you can buy other, cheaper compounds that will give a much better result.

Before the beginning of the repair it is advisable to take into account all possible nuances and purchase exactly the material that is optimal for the solution of the set goals.