In construction, there are two types of wall insulation: internal and external. When carrying out certain works, different materials are used, which differ in physical and mechanical properties and structure. If you apply a facade insulation, then it will not take up space inside the premises of the house, and sometimes the area is very limited. How to understand the variety of rolls and plates that are used today for thermal insulation? In order to understand which material is better to choose for external insulation, you need to familiarize yourself with the main varieties of modern heaters and their characteristics.
Mineral wool reviews
Mineral wool is a natural material that has a fibrous structure. It is made from molten rocks, and its main advantages are resistance to biological and chemical reagents, hygroscopicity, as well as high sound and heat insulation ability. Consumers note that mineral wool insulation is resistant to deformation and fire.
Reviewing materialsof this group, bas alt facade insulation can be distinguished, the disadvantage of which is only a high cost. But in terms of water absorption coefficient and high fire resistance, mineral wool boards are leaders in comparison with other types of thermal insulation.
Consumer reviews of the most popular brands of stone wool products
If you choose facade insulation, you can pay attention to the TechnoNIKOL products that are common today, which are manufactured in Russia. According to buyers, these plates are excellent for arranging ventilated facades. Their technical characteristics make it possible to use this material for thermal insulation of walls with a high degree of convection of air flows.
Consumers are advised to choose Rockwool facade insulation if there is a need to equip suspended structures of ventilated systems with higher rigidity and strength. After all, it is precisely these features that the material based on mineral wool has.
Similar products are also produced by the Finnish company Paroc. Experts recommend using them in the construction of single-layer and two-layer facades, which provide for the presence of a ventilation gap. Due to the fact that this thermal insulation is manufactured abroad, it costs slightly higher than domestic analogues. For a square meter, you will have to pay a price of 880 to 980 rubles. According to private builders, such a cost is justified by reliability and quality.
Facade insulation must have excellent vapor permeability. This characteristic is characteristic of the products of the Russian enterprise Izorok. Among other things, the materials of this manufacturer are durable and have low thermal conductivity.
Reviews on fiberglass insulation
Glass fiber is made from waste glass industry, it is characterized by high elasticity, chemical resistance and low hygroscopicity. Users claim that fiberglass has a disadvantage, which is the instability of the fiber structure and low strength. This is the reason why the material crumbles so easily.
Famous Fiberglass Brands
Facade insulation can be made on the basis of fiberglass. The production of such products is carried out by the French concern Saint-Gobain, which produces a material that compares favorably with mineral slabs in weight. This allows the use of insulation for light facades that do not involve heavy loads. Users most often choose Ursa fiberglass insulation. A distinctive feature of these materials is the presence of a coating of fiberglass on the outside. Due to this, when using these heaters, there is no need to additionally attach a windproof film.
Expanded polystyrene reviews
Facade insulation can also be made of expanded polystyrene, which is quite light and is made of foam material,polydichlorostyrene, and polymonochlorostyrene. According to users, such foam insulation has excellent thermal insulation qualities, high hygroscopicity and good strength.
To improve fire safety, flame retardants are added to the ingredients during the manufacturing process. But users highlight the shortcomings, which are expressed in instability to the effects of the sun and chemical solvents. The most popular brands among modern buyers are Penoplex and Extrol, which are produced in Russian factories.
Polyurethane foam reviews
If you need facade insulation, then you can pay attention to polyurethane foam, which is represented by thermal insulation made from molten plastic, 90% saturated with gas. You can purchase this thermal insulation in the form of a liquid substance, which is common when using the “wet facade” insulation technique. Private builders are advised to use liquid polyurethane foam together with thermal insulation made of mineral wool or expanded polystyrene. A reinforced fiberglass mesh is laid on top of the latter, and then a layer of plaster is applied. It is just made of acrylic, silicone or polyurethane foam.
This facade insulation for the house, according to buyers in their reviews, has an insignificant coefficient of heat conductivity. It is distinguished by the qualities of higher adhesion compared to other materials, andalso resistant to chemical solvents. However, like other types of thermal insulation, polyurethane foam has its drawbacks. One of them is expressed in the fact that when burning, the material begins to release toxic substances. It is for this reason that insulation is recommended for use in the arrangement of industrial facilities.
Main technical characteristics of different types of thermal insulation
When choosing a facade insulation for walls, you should not forget that it will have certain characteristics that affect the indoor microclimate. Thus, mineral wool has a density ranging from 80 to 100 kilograms per cubic meter. For fiberglass, this indicator varies from 11 to 30, while for expanded polystyrene and polyurethane foam - from 28 to 38 and from 50 to 70, respectively. The water absorption of the described heaters in the same sequence is: 1, 5; 1, 5-2; 0.4; 0.2-0.4%.
Before purchasing, you should also pay attention to the vapor permeability of mineral wool and fiberglass. These indicators for these materials vary from 0.3 to 0.32 and from 0.55 to 0.64 mg/(m·h·Pa), respectively. For expanded polystyrene and polyurethane foam, these parameters are as follows: 0.02-0.07; 0.05 mg/(m h Pa). The first two of the listed heaters are not combustible, but polystyrene foam and polyurethane foam belong to classes G3-G4 and G1-G3.
You will have to pay from 350 to 970 rubles per square meter of mineral wool, while fiberglass is cheaper, its cost varies from40 to 145 rubles. per square meter. Expanded polystyrene is in the middle price category, the price of which is from 250 to 320 rubles per square meter, but for the mentioned unit of polyurethane foam, consumers pay from 450 to 600 rubles.
For reference
The prices for thermal insulation boards were mentioned above, but if you want to insulate using the method of applying polyurethane foam using the "wet facade" technology, then the price will vary from 150 to 1350 rubles per square meter. The final cost depends on the thickness of the applied layer, which can range from 10 to 100 millimeters.
Characteristics of the TechnoNIKOL facade insulation
"TechnoNIKOL" is a facade insulation, which has a slight thickness, but provides high sound and heat insulation characteristics. It is extremely easy to install this material, since it does not cause allergic reactions, and its weight is small. During operation, it exhibits resistance to high temperatures and stability, as well as the inviolability of external parameters. Low water absorption guarantees longer service life of adjacent materials. Rodents are not interested in TechnoNIKOL, as well as microorganisms, as well as cockroaches.
