The thermal conductivity of the foam is an important plus
The thermal conductivity of the foam is a property that primarily ensures such popularity of this material among developers seeking to ensure maximum energy efficiency of the building.Indeed, considering the cost, polystyrene foam is the most effective heat insulator. And all the negative aspects of the use of PPP in construction are compensated by the coefficient of thermal conductivity.Styrene-based foam foam consists of many polyhedral cells of a closed type. These cells are filled with air and have a wall thickness of approximately 0.001 mm. As a result, a 98% material is formed consisting of air in a closed state of rest.Air very effectively prevents heat exchange processes, especially at rest. Hence the thermal conductivity coefficient of the foam is equal to 0.041 (W / m · ° C).Coefficient of thermal conductivity.In practice, the value of this coefficient ranges from 0.037 to 0.043 (W / m · ° C), it depends on the density of the foam and its humidity.Measurements have shown that a PPP with a density of M-15 is a slightly less effective heat insulator (0.043 W /m · ° C). With an increase in density to M-35, the coefficient of thermal conductivity decreases to 0.038 (W / m · ° C), then there is a directly proportional deterioration in thermal insulation properties with an increase in the density of expanded polystyrene.Hence the conclusion: the most effective density of the PPP is M-35, both from the point of view of thermal insulation and from the point of view of resistance to mechanical impact.As a rule, foam is used for External insulation of facades, and here strength is quite important.The thermal conductivity of the foam is not the only advantage that stimulates the mass distribution of this material.Cost, biological properties, ease of processing and installation, vapor barrier properties are the main advantages of this insulation. Of course, there are also negative sides, first of all, combustibility, environmental friendliness, resistance to chemicals and durability.Developers should draw conclusions and choose the most effective thermal insulation material in each case.There is a desire to save money at the expense of environmental friendliness of housing - we choose foam, and if fire safety and biological purity of thermal insulation are more important, you should pay attention to other types of materials, such as mineral wool, Foam glass, cellulose insulation.In this regard, modern industry provides a field for maneuver in different price categories. 簡単・安心なカジノエックス登録[カジノエックス] - https://xn--ickfn8ah2d1d.net/sign-up/ . ☑️ 登録後、カジノエックス[casinox]から入不要ボーナスを忘れずにアクティベートしてください。? カジノx ボーナス条件 公式カジノx［カジノx］にて。
