As soon as penoizol is not called "liquid foam", CFP, "Mipora", "Mettemplast" - but no one will definitely say what it is, where it is applied and what properties it is characterized by. But this product, if you know about all its features and the intricacies of the technology of use, will help solve a lot of problems, and with minimal costs.
So what is penoizol and is it interesting for us in terms of household use, especially if we are guided by such an important indicator as the ratio of the final result and spent money? Let's consider all the main pluses and minuses that characterize penoizol.
The basis of this material is a polymer( carbamide resin, purified in a special way), in which various additives are introduced( primarily plasticizer).These include substances such as foaming agent, hardener and water. The technology for the preparation of penoizol has its own specifics, but this is another topic. We will understand only its merits and demerits.
It should be noted that opinions about this material are very contradictory, and there is not much information. And this is understandable - the products on the market are quite new. Therefore, we limit ourselves to summarizing all the reviews that are available in the public domain.
Pros
With respect to such a parameter as the coefficient of thermal conductivity, penoizol exceeds the widespread mineral wool. Its value can vary between 0.033-0.048 W / mK, since the value depends on the density of the material( 8 to 28 kg / m³).Hence, under the same conditions of thermal insulation, CFPs can be laid in a more thin layer, which does not significantly affect the reduction of the useful space in the room.
Due to the fluidity of penoizol it is possible to process any areas - hard to reach, with complex geometry or relief. When insulating a private structure, special difficulty is caused by the finishing of the passages through walls( overlapping) of various communications, the location of pipes on the roof and so on.
The lack of fasteners ensures the integrity of the waterproofing layer, excludes the possibility of forming so-called "cold bridges".Consequently, indirectly, the level of heat loss is further reduced.
According to some experts( with reference to the profile research institute of the Russian Academy of Sciences), the lifetime of the material is unlimited. Although practice( taking into account the "youth" of products), this is not confirmed - only theoretical calculations.
Penoizol does not melt, does not ignite, does not emit smoke - only char.
Its structure is such that it belongs to the category of "breathing", so unpleasant "surprises" in the form of mold or fungus material of the base are not threatened.
Possibility of reinforcing the layer by introducing into the mixture additives of mineral origin.
Low cost - from 790 rub / m³ .This is enough for the insulation of approximately 15 - 20 m²( depending on the thickness of the fill).
Cons
Like all foams, it does not have a high mechanical strength. Therefore, insulation with foam is automatically accompanied by a superficial lining of the applied layer. And it's not about its appearance. For example, with interior decoration of the garage this is not essential. The reason for the fragility of the material."Unprotected" penoizol quickly crumbles, and there will not be much use for such warming.
The complexity of the insulation of frame structures. If the mass is poured between the capital partitions, then under their weight they do not deform. Consequently, penoizol fills the entire cavity to the maximum. And when warming, when the walls of the formwork are not rigid enough, they can "play".After some CFP shrinkage, this will lead to the formation of voids, and you will not be able to straighten the position later. Although this can be avoided. For example, maintaining the temperature in the room at a constant and unchanged level, thereby regulating the intensity of evaporation of moisture. But this is feasible only with internal works.
Penoizol releases harmful substances , and intensively. This is one opinion. The other - only partially, and then, only until the full hardening of the filled mass.
Restriction in use - it is not recommended to use buried parts of structures for insulation. The same applies to various types of screeds( equipped with "wet" technology), since in part the moisture in the material is still absorbed, which worsens its properties as a heater.
The complexity of independent work. The main difficulty is in strict observance of technology, and this requires certain knowledge and experience.
But this is basically a theory, and by some parameters is not completely confirmed. After all, the practice of applying penoizol on a large scale, and for a long time, not yet. Accordingly, there is no any statistics, specific recommendations on the use of this material, taking into account all the nuances of this method of warming. Therefore, before you make a final decision on the appropriateness of purchasing and installing yourself, you need to think carefully. And even better - to consult with the "pro".
For the sake of justice it is worth pointing out that many manufacturers advertise other varieties of penoizol - crushed( packed in mats), sheet. But this is somewhat different, and more like a normal styrofoam( in granules or plate).
