Development of national standards of the Russian Federation for three and two-layer panels having thin cladding sheets and foam insulation

Introduction. At present, the overall production of light two- and three-layer wall panels and coatings having metal claddings and efficient insulation is continuously increasing in Russia. Especially relevant is the use of sandwich panels, since industrial and administrative buildings can be quickly erected, thereby significantly reducing their payback period. Regulatory documents regulating the production processes of panels were mainly developed in the 1970s and 1980s. However, over the past 40–50 years, much has changed in the technology of panel production, including the development of advanced materials for panel layers, new structural joints, and approaches to assessing the safety of panels. New federal standards for panel constructions and testing methods were developed in order to account for the changes in the intervening period.

Aim. In this work, changes that occurred in the production of laminated panels are addressed, including changes in technical requirements for panel design solutions, butt joints, panel materials, methods of selecting and testing insulation and panels, and safety and environmental protection, in order to inform the manufacturers and consumers on the use of new documents in the production and application of panels.

Materials and methods. When developing new regulatory documents (GOST R), the existing documents and results of panel testing at the TSNIISK named after V.A. Koucherenko were analyzed, along with the identification of new materials and technical solutions on the basis of the technical materials of manufacturing plants.

Results. The work established current technical requirements for panel design solutions, butt joints, panel materials, methods of selecting and testing insulation and panels, and safety and environmental protection. The following new provisions are given in the developed standards: the scope of application and classification of indicators are expanded, more efficient butt joints for panels are recommended, the consumption of insulation material is reduced, and new methods of testing insulation materials are proposed.

Conclusions. The implementation of the developed GOST R will optimize the manufacturing process of two- and three-layer panels having efficient insulation, along with reducing the labor intensity of their production.

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