Warm plaster for interior applications: features of choice

Heat in the house is one of the most important factors to which attention should be paid when building a room. To minimize heat loss in various ways. Today, it is increasingly used for this special warm plaster. They are applied only from the inside, which allows you to even align the walls for further finishing.

Warm plaster is a mixture based on cement, whose main task is to preserve heat indoors. Classical sand-based solutions are characterized by high heat loss. In order to increase the thermal insulation, various fillers are added to the composition of the plasters, which can create a porous structure.

Today, in the production of these products are made from such substances:

• expanded clay;
• perlite;
• sawdust;
• polystyrene foam.

Plasters of this type have several positive features:

• Ease of application. The technology of wall covering practically does not differ from classic plastering with cement mixtures.
• Versatility. With the help of plaster, not only the heat loss is reduced, but also the walls for decorative decoration are leveled.
• Vapor permeability Substances well pass moisture, which allows you to create an optimal microclimate inside the house.
• No cold bridges.

• Good adhesion with various types of surfaces. This allows you to finish almost all walls with minimal cost and effort. Some bases of plaster can be applied even without prior priming.
• Good sound insulation. The compositions absorb well the sound waves of different ranges. But if they are affected by vibration, then he is not able to hide such noise.
• Plasters are not damaged by rodents, and also they do not develop mold and other harmful microorganisms.

Warm compositions do not differ universality, as they have several significant disadvantages:

• High price. It is quite expensive to buy such compounds in large quantities, which makes people look for alternative weatherization options.
• Low thermal conductivity. This indicator is much lower in plasters than in such heaters as mineral wool, polystyrene foam or polyurethane foam.
• The maximum thickness of the plaster can not exceed 5 cm. If this value is increased, then the composition after freezing will begin to peel off very quickly.
• Relatively high density. Although relatively light-weight materials are part of it, after all they are applied to walls, they can create a significant load on the surface.
• Virtually all types of plaster mixtures after application should be coated with additional protective solutions. In most cases, this is done using putty with various compositions (based on gypsum or cement).

Modern manufacturers are many types of warm plasters. Depending on the composition and presence of the main component, you can select the following types of mixtures:

• Expanded rocks. The most common type of heat-saving plasters. Get them in the process of high-temperature processing of various types of mineral fillers. Today, increasingly, for this purpose, expanded clay, vermiculite and perlite are used. Similar products can be used both inside and outside buildings. But the latter option requires additional processing (reinforcement, finishing), since water will penetrate the rooms through the pores, disrupting the structure of the finishing materials.

• Polystyrene foam compositions. Plasters on a similar basis also receive unique protective properties. But experts recommend using them only for external walls. This is due to the fact that the material is not environmentally friendly, so it is undesirable inside the premises.
• Plaster on the basis of foam glass. Get the filler from waste glass or directly from quartz sand. All these components melt and are amenable to successive foaming, which allows to achieve unique technical parameters. Plaster mixtures based on foam glass have a small mass and good heat retention.

• Sawdust. The material is quite often used in industrial production. It is also used by many craftsmen for the preparation of warm plaster. Compositions based on sawdust have unique heat-saving indicators, as well as completely safe for human health. But with strong heating, sawdust can start to smolder.

It should be noted that warm plaster is not a universal insulation, as it is not capable of replacing classic materials. But if you need to improve the insulating properties of wall surfaces, then it will be the best solution.

Warm plasters are the name of a class of mixtures that can increase surface thermal insulation. This led to such a wide distribution of this product in the modern market.

Use similar compounds to solve several problems:

• Alignment and insulation of facades.Theoretically, it is possible to apply various heat-insulating plasters outside the building. But some of them can withstand changes in temperature and humidity, while others should additionally be covered with a protective layer. Therefore, the use of such materials outside is limited to only a few varieties.
• Alignment and insulation of interior walls. Practically all types of plasters are suitable for such purposes. Some of them are able to change not only the heat-insulating properties, but also give a decorative effect.

• Warming of designs which were under construction by the principle of "a well laying". Heat-insulating plaster is used here to fill the voids that formed in the structure of the wall.
• Protection of sewers or plumbing from the effects of low temperatures. In most cases, they are used in places where pipes are adjacent to the house. Works of this type require preliminary planning and creation of protective frames.
• Warming of door or window slopes. Insulating plaster prevents cold bridges. This avoids condensation.
• Thermal insulation of ceiling or floor surfaces.But such use of them is relatively rare, since users prefer classical heaters and approaches.

Warm plasters are practically indistinguishable from classic mixtures.

The process of plastering can be divided into several successive steps:

• Surface preparation. Apply this type of plaster only on clean and smooth walls. It is desirable that they were not cracks and other physical damage. Therefore, first of all, it is necessary to eliminate the gaps with cement mortars.
• Padding. This operation is optional for many mixes. It is advisable to clarify this fact before using solutions. But experts recommend to almost always cover the walls with primers of deep penetration. They will not only strengthen the wall, but also remove dust from its surface.
• Preparation of the solution. All components should be mixed only in exact proportions. Experts recommend kneading the entire package at once, since the components in it can be distributed unevenly.

Mixing masonry mortar is carried out with a construction mixer.Please note that you should not do this at high speeds. It is advisable to add the dry mixture to water, and not vice versa. Thus, you can get a uniform and high-quality plaster. To check whether the mixture is ready, you need to type on a spatula and turn it over. In this position, it should not fall.

• Installation of beacons. These elements are located around the perimeter of the walls. They allow you to achieve a perfectly flat surface.
• Plastering. Apply the composition with a wide spatula between the lighthouses. Experts recommend starting work from below and moving up. The solution is distributed in a uniform layer. When the area between adjacent lighthouses is filled, you can proceed to the alignment. To this end, the mixture is shifted by a long rule, relying on supports.
• When the plaster hardens a little, you need to take out the beacons and fill these places with liquid composition. At the very end, final alignment is performed.

Warm plasters differ in composition, which affects their physical properties. Today, many manufacturers of cement mortars produce various products.Among all this diversity, there are several popular brands of warm plasters:

• Knauf grunband - one of the most famous types of plasters. It is made on the basis of polystyrene filler. The fraction of balls does not exceed the size of 1, 5 mm. The manufacturer also adds various types of plasticizers and water-repellent additives. After hardening, the top layer of plaster forms a unique decorative surface. Subsequently, it can be painted with special paints that will protect the surface from climatic influences. Not recommended for indoor use. To obtain optimal thermal insulation performance, the solution should be applied with a layer of a thickness not less than 1 cm, but not more than 3 cm.

• UMKA UB-21 TM. Universal heat-insulating plasters that perfectly withstand significant temperature differences. The applied layer of the substance is capable of carrying up to 35 winter cycles. It is made on the basis of cement-lime mixture with the addition of foam glass. The product can be applied to almost any mineral base. Perfect for any kind of work.The materials also repel water well, which helps to protect the main surface from its impact. Another advantage can be considered as quality sound insulation indicators. But if you use it for internal walls, then the surface after solidification will need to be additionally covered with special putty.

• "Bear" - Another good kind of solutions of domestic production. According to customer reviews, it tolerates frosty winters. The advantages of the products include low thermal conductivity. It is universal, as it can be used in various temperature conditions.
• HAGAst AuBenputzPerlit FS-402. The main constituent elements here are cement and perlite sand. Formulations for the treatment of cellular concrete and gas silicate blocks are intended. But they are also suitable for bricks and arbolita. The only drawback can be considered the inability of the plaster to resist external influences. Therefore, it should be additionally filled with protective solutions.

• UNIS HEAT. The compositions are intended only for interior work, as the main connecting element here is gypsum.Thermal insulation properties are added to it by small perlite sand.

Working with warm plaster is relatively simple.

To get a durable and even coverage, you should follow several rules:

• To install the beacons should use the same mixture that will be used for plastering. If you use other products, they can lead to the formation of cold bridges.
• Final alignment and removal of beacons should be carried out within 2 hours after plastering. If this is not done, the solution will harden and lose plasticity.
• Apply the mixture should be layers, the thickness of which does not exceed 2 mm. This approach will allow you to more flexibly level the surface.
• Be sure to follow manufacturer's recommendations when mixing components. Do not leave the finished solution for future use, as it will lose its original properties.

All about the warm plaster ThermoVer see below in the video.