The technology of building insulation in modern reality is in the mode of permanent improvement and now there is already a set of extremely effective production measures (along with building materials) that differ significantly from those that were used relatively recently, 10-20 years ago. Today, there are various types of sprayed thermal insulation, which is capable of high-quality insulation of large surfaces. The trends in the development of such materials indicate that they may soon become the only high-quality and easy-to-use thermal insulators.
Content
The sprayed thermal insulator is actually an analogue of mounting foam, which is applied to the surface by spraying from special equipment (special cylinders). Such a substance consists of two liquid substances, the mixing of which forms a large amount of foam material, with the help of which certain areas are covered.
The main component of the above substance is polyurethane foam. It, in fact, is a special mixture, the components of which are isocyanate and polyol, i.e. synthetic polymers:
When mixing the first and second components, their active interaction occurs, which is accompanied by the release of carbon dioxide, which is responsible for foaming the building insulation. As it hardens, polyurethane creates an insulating layer. Such a layer will consist of a huge number of isolated cells, completely filled with acid. Thus, thanks to this technology, a qualitatively low heat transfer coefficient is formed, which is optimally suited for surface insulation.
The sprayed thermal insulation material has an extremely light weight and can be applied to various surfaces without much difficulty, while the applied layer can be of any thickness. Its unique properties are very practical for a certain type of construction and finishing work, which is well known to both novice craftsmen and professionals:
IMPORTANT! Although most experts are not inclined to attribute sprayed waterproofing to non-combustible substances, flame retardants may be included in its first component, which will make it difficult for fire to spread. Therefore, many types of thermal insulators under consideration have a G2 incombustibility class.In addition to the fact that the substance itself does not support combustion well, the fire retardants included in the structure will contribute to rapid self-extinguishing, which will be ensured by the rapid release of carbon dioxide from the structural cells. The usual material consumption is 890 milliliters per square meter with a layer of five millimeters.
The considered heat insulators will serve as an ideal barrier to heat loss in the cold season, will help reduce the cost of air conditioning the room in the warm season. At the same time, to create high-quality insulation, it is not even necessary to apply an extremely thick layer of the substance - just a few millimeters of a foam layer will be enough to equip the interior. In addition to the above, it is possible to note the following positive characteristics:
However, like any building and finishing material, sprayed insulation is not perfect and has a number of disadvantages:
The considered material for insulation, if its composition complies with all safety standards, can be used for finishing both residential and public buildings. With its help it is possible:
Most owners of detached housing (and even some large apartments) prefer to carry out the application of the composition on their own. However, under certain conditions, this process can cause some difficulties. First of all, you need to take care of the availability of special equipment and technical components, namely, you will need:
These cylinders must be filled in such a way that their internal pressure is at least eight atmospheres. After the preparation of the working surface, the spraying is carried out directly, for which the spray gun is gently actuated, while its jet is directed exactly to the right place. Due to the fact that the procedure itself is not particularly complicated, more attention should be paid to the selection of cylinders. Insulation for spraying, enclosed in balloons, is considered more preferable and convenient, because it has a properly executed industrial preparation and well-chosen internal pressure in advance.
PPU is often selected to process the rafter system from the inside, therefore, it can be used not only at the construction stages, but also at the end of all work in the attic.After hardening, the foam will not only insulate the under-roof space, but also form an effective barrier to absorb noise, while strengthening the entire roof structure. The applied heat insulator can also be used to insulate the attic, which traditionally has irregular shapes and joints, and is also characterized by the presence of hard-to-reach places. The whole work process will take several hours, but then it will be possible to fully enjoy the comfortable warmth in the cold season, and in the summer a pleasant coolness will reign in the room.
In cases where a sprayed heat insulator is used to treat residential premises, it can be applied both to internal and external bases. Thus, in addition to direct insulation, the treated surfaces will be reliably protected from gusty winds, rainfall, temperature changes and other adverse effects. The material adheres well to horizontal surfaces, for high-quality processing of which a not very large layer is required, so the distance between the ceiling and the floor will not decrease significantly.
The process itself is not too complicated:
Among professional craftsmen, it is always customary to test the quality of the applied polyurethane foam insulation.Every 40 square meters, a cut of the coating is carried out with a special knife and its thickness is checked, relative to the expected one. Further, in the laboratory, the density of the substance is checked. In addition, when spraying the substance in a thin layer, its layer-by-layer application can provide the most effective result. This takes into account that such a procedure allows an increase in density due to free foaming. It is worth noting that the higher the qualification of the master, the more evenly he sprays the foam, which allows you to get better insulation and avoid unnecessary consumption of the substance. Standard indicators for determining the quality layer are from 3 to 5 millimeters for every 50 square centimeters.
The main purpose of the product is to provide thermal insulation of verandas, loggias and attics. It is also possible to process attics and basements, various outbuildings. Practice shows that the substance has increased adhesive properties, which is achieved by including special polymeric materials in the composition. A separate advantage is the absence of the need to use additional tools in the implementation of work. The recommended retail price is 365 rubles.
An inexpensive variation from a Russian manufacturer. It is used for thermal insulation finishing of industrial and residential buildings, it is possible to use it on roofing and foundations.Capable of insulating small sections of highly specialized pipelines. The composition includes a single component - polyurethane. Spraying occurs by means of a spray, does not cause difficulties in use. However, it can also be sprayed with a gun, to which it is connected through a special nozzle. Suitable for use in the field of auto repair. The recommended retail price is 390 rubles.
This sample is designed to work only in conjunction with a pistol. Can be successfully applied to any surface - both horizontal and vertical. Application at various angles and processing of hard-to-reach places are also included in the functionality. It is applied both to external and to internal works. It has a wide temperature range, available for use from +35 to -10 degrees Celsius. Full polymerization of the layer occurs in half a day. Chemically neutral, does not leave toxic compounds after application. The recommended price for shops is 400 rubles.
The sample has proven itself among professional finishers and builders. When creating a layer, it does not allow the creation of "cold bridges".During operation, it is possible to properly adjust the thickness of the applied coating. However, to start working, the substance must be warmed up to +20 degrees Celsius. The surface will also require preliminary preparation. Before direct ejection of the foamy substance, the container must be gently shaken. The recommended store price is 430 rubles.
This sample belongs to the one-component category of the universal type from the spray aerosol family. Can be used in both industrial and residential sectors. However, a small capacity will not be able to provide large-scale processing, therefore, it is more used as a repair tool. Suitable for hard to reach places. The resulting coating calmly withstands temperature fluctuations ranging from -40 to +90 degrees Celsius. After hardening, it is completely safe for people; during initiation, it does not emit toxic substances into the atmosphere. The recommended retail price is 450 rubles.
An excellent example of a semi-professional product, intended for both domestic and industrial needs. Heat dissipation is extremely reduced, which means high heat storage capacity. The composition contains a self-adhesive substance based on polyurethane. Adhesive properties are also particularly effective.Excellent adhesion to brick and concrete, wood and metal, and synthetic materials. Can resist the growth of fungus and rust on treated structures. The retail price is about 500 rubles.
This model has earned positive reviews not only due to its functional properties, but also due to its good configuration - a special pistol is immediately supplied in the set. You can work on external and internal structures. Belongs to the segment of professional tools. The minimum temperature for application is -5 degrees Celsius, so it is preferable to apply the composition in the warm season. Flame retardants are included in the structure, which will prevent the possible development of a fire. Able to protect putty and paintwork from direct sunlight. The recommended price for retail chains is 600 rubles.
This professional sample is applied only on prepared substrates, which will ensure its strong adhesion to the surface. It can be used both independently as a primary layer and used as a repair agent, giving the treated objects additional heat-insulating properties. Convenient and comfortable to apply on surfaces located at any angle.The temperature range of application is very wide from -45 to +90 degrees Celsius. Full polymerization is carried out within a day. The structure contains flame retardants of increased activity, which increases the fire resistance class of the resulting coating to B2. The price for retail chains is set at 800 rubles.
The analysis of the domestic market of modern sprayed heaters found that it is mostly represented by Russian manufacturers. The reason for this situation is the simple technology for the production of such substances, as well as the economic inexpediency of importing foreign analogues. Practice shows that Russian samples are in no way inferior to Western and Asian ones, and in most cases they simply surpass them. Moreover, they are equally suitable for both small household and large-scale industrial work. The diversity of this market is also not subject to criticism - there are a great many models and it is not difficult to choose an option for a specific task and at an adequate price. However, it is worth mentioning that retail is far from being saturated with industrial-style compositions that will come in handy during construction work. In most cases, such compositions are kneaded by professionals on their own in order to maintain the necessary proportions for the output layer.