About Efficiency of Using Extruded Foam Polystyrene in Enclosing Structures of First and Socle Floors

Thermal and mycological problems arising in the course of operation of the first and socle floors of buildings are described. The efficiency of using the extruded foam polystyrene in enclosing structures with the purpose to solve problems described is analyzed. Numerical calculations of non-stationary humidity conditions of enclosing structures with the use of extruded foam polystyrene under climatic conditions of various cities of the Russian Federation have been done. Values of the operational humidity in the layer of extruded foam polystyrene for various variants of structures have been calculated. A comparison on the values of operational humidity for analogous structures with the mineral wool and molded foam polystyrene (foam plastic) is presented. The dependence of heat conductivity on the operational humidity is described. The influence of humidity conditions on the values of energy efficiency of heat insulating materials has been investigated. The issue of loss of biological stability of damp layers of heat insulation has been studied.

P.P. PASTUSHKOV¹, Candidate of Sciences (Engineering)(This email address is being protected from spambots. You need JavaScript enabled to view it.)
A.V. ZHEREBTSOV², Head of Technical Department

¹ Scientific-Research Institute of Building Physics of RAACS (21, Lokomotivny Passage, 127238, Moscow Russian Federation)
² OOO «PENOPLEX» SPb (31, Mayakovskogo Street, 191014, Saint-Petersburg, Russian Federation)

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