Energy Efficiency of Seamless Insulating Shells

The aim of research, the results of which are presented in the article, was to study the properties of polyethylene foam and the possibilities of creating insulating shells within the scope of frameless and framed constructions of various applications: production halls, warehouses, agricultural storages, livestock housing, covered parking lots, sports and cultural facilities. A comparative analysis of possible heat-insulating, water- and vapour-proof materials for an insulating membrane has established the reasonability of using polyethylene foam rolls fixed with the help of an adhesive method on the external surfaces of internal walls. The performed tests have revealed that the longitudinal tensile strength of the polyethylene foam products with a metallized coating is 80–92 kPa, without a metallized coating – 80–87 kPa, and 29–32 kPa of the weld seam. It has been established that the values of diffusion moisture absorption of polyethylene foam with an average density of 18–20 kg/m³ amounts to 0.44 kg/m² without a metallized coating and 0.37 kg/m² with a metallized coating; water absorption after partial immersion in water for 24 hours is equal to 0.013 kg/m²; water absorption by volume after complete water immersion for 28 days amounts to 0.96%. The material practically does not change its properties under cooling up to minus 60^оC and under conditions of long-term alternating temperature changes. It was confirmed that the possibility of obtaining a seamless joint during the installation process significantly increases the heat-protection properties of the insulating coating by means of minimizing cold bridges and eliminating leakages when connecting separate insulating elements and on the abutment surfaces of the structures.

А.D. ZHUKOV¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
К.А. TER-ZAKARYAN², Director
I.V. BESSONOV³, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.А LOBANOV³, Chief of Laboratory (This email address is being protected from spambots. You need JavaScript enabled to view it.)
А.V. STAROSTIN³, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ National Research Moscow State University of Civil Engineering (26, Yaroslavskoe Highway, Moscow, 129337, Russian Federation)
² LLC TEPOFOL (3, Shcherbakovskaya Street, Moscow, 105318, Russian Federation)
³ Research Institute of Building Physics of RAACS (21, Lokomotivniy Driveway, Moscow, 127238, Russian Federation)

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