TY JOUR TI INSTRUMENTAL THERMAL ENGINEERING INSPECTION OF BUILDING ENCLOSING STRUCTURES BEFORE MAJOR REPAIRS KW thermal resistance KW instrumental examination KW enclosing structures KW defects KW insulation KW energy saving JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Ryazancev, O.A. AU Trubaev, P.A. AU Koshlich, Y.A. AU Dotsenko, D.Y. AU Buhanov, D.G. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov