MULTI-LAYERED POLYMERIC THERMAL PROTECTION SYSTEM FOR BUILT STRUCTURES AND WALLS OF BUILDINGS AND STRUCTURES, BASED ON WATER VAPOUR-PERMEABLE NON-COMBUSTIBLE ULTRA-THIN THERMAL INSULATION

The invention relates to the field of building, and more particularly to layered thermal insulation systems used for the thermal protection of built structures and brick, concrete and reinforced concrete surfaces of exterior and interior enclosing and load-bearing structures, including foundations, plinths, walls, partitions and floors, subject to temperatures of from -60°С to +260°С, and further relates to methods for applying a protective covering to said surfaces. A multi-layered polymeric thermal protection system for built structures and the walls of buildings and structures that is based on water vapour-permeable non-combustible ultra-thin thermal insulation comprises the following layers applied consecutively to the surfaces to be protected: an adhesive layer in the form of an organosilicon primer based on an aqueous solution of potassium methyl siliconate; a layer of insulating render having a density of at least 700 kg/m3 and being based on expanded polystyrene with an added binder, the thickness of the layer being 1.0-4.0 cm; a reinforcing layer having a thickness of from 1.0 to 2.0 mm; a main thermally insulating layer in the form of a non-combustible (class A1) water vapour-permeable ultra-thin thermal insulation having a water vapour permeability rate of 0.03 mg/m·h·Pa and a thermal conductivity of 0.001 W/(m⋅K) and being based on hollow microspheres, the total thickness of the thermally insulating covering being from 0.5 to 4.0 mm; and a decorative protective layer in the form of a water-based acrylic paint. The technical result of the invention is that of expanding the field of application of multi-layered polymeric thermal insulation systems, lending a structure the necessary overall heat transfer resistance while at the same time reducing the thickness of a thermally insulating covering and an insulating render, as well as making it possible to use different finishing materials without detriment to the thermal properties of the liquid thermal insulation, to preserve the architectural appearance of buildings and structures, including heritage properties, and to reduce the amount of added loaded on foundations and bases. L'invention se rapporte au domaine de la construction, et concerne notamment des systèmes d'isolation thermique que l'on utilise pour la protection thermique de structures de construction, de surfaces en briques, béton ou béton armé de structures externes et internes d'enceinte ou porteuses, y compris des fondations, des soc