Insulating sheath system and energy efficiency of buildings

Abstract

The article discusses the results of thermal imaging monitoring of building structures with and without insulation. Research and thermal and physical calculations showed that heat loss from the premises is determined by two groups of factors: surface loss depending on thermal conductivity, as well as vapor and air permeability of enclosing elements and heat loss at all types of joints, fasteners, etc. Thermal insulation with plate materials significantly reduces heat losses, but at the same time, heat flows through the joints between the heat-insulating plates and in the areas of their contact with other structures, necessitating the use of steam and waterproof windproof roll materials. The usage of elastic and thermoplastic materials in the insulation circuit allows minimizing heat loss at the joints between the heat-insulating elements and along the smooth surface of the wall due to the low air and vapor permeability of the material. In the systems of frame cottages, when used as a thermal insulation of rolled foam-polyethylene, it becomes possible to form a seamless insulating shell of a building. This is made possible by connecting individual sheets of polyethylene foam into a lock, followed by hot air welding. Seamless insulation systems are used both in the construction of cottages and in the construction of frame and frameless logistic facilities and housing and communal services.

Insulation systems for structures on pile supports

“…3). It should be noted that the studies carried out at the NRU MSCU [15][16][17] showed that all insulating materials can operate at temperatures up to minus 80 °C without loss of properties and thermal insulation ability. The operating conditions of thermal insulation based on extruded polystyrene foam, polyisocyanurate foam and polyethylene foam are quite consistent with the studied ranges of operation of these materials and their operational resistance, which assumes the E3S Web of Conferences 258, 09088 (2021) UESF-2021 https://doi.org/10.1051/e3sconf/202125809088 possibility of long-term operation of the insulation system.…”

Insulation systems for structures on pile supports

“…3). It should be noted that the studies carried out at the NRU MSCU [15][16][17] showed that all insulating materials used can operate at temperatures up to minus 80 °C without loss of properties and thermal insulation ability. With a thickness of XPS-thermal insulation of 200 mm and a thickness of FPEinsulating coating of 20 mm, the thermal resistance of the insulating shell is not less than 4.0 m 2°С /W, and the calculated one is not less than 6.0 m 2°С /W.…”

Insulation Systems for Structures on Pile Supports

“…3). It should be noted that the studies carried out at the NRU MSCU [15][16][17] showed that all insulating materials can operate at temperatures up to minus 80 °C without loss of properties and thermal insulation ability. possibility of long-term operation of the insulation system.…”