Date: 7 September 2020
In December 2019, standards EN 16612 and EN 16613 were designed and published and they are closely related to each other: in fact, the first one determines the resistance of glass panes to lateral loads by calculation, while the second one specifies the mechanical properties of the interlayer used to make laminated safety glass.
These standards have been under construction for years and their issue finally formalizes the importance of the choice of the interlayer for the design of architectural elements. Therefore, they will replace or complete the individual regulations in the different European Union countries.
Selecting the type of film to be used is a very important decision: it determines the behaviour of laminated glass, whose properties depend on the temperature and the loads to which it is subjected.
Many samples (quantities and measurements as per Appendix B of EN 16613) have been tested in an independent certified laboratory in accordance with the configuration provided by ISO EN1288-3:2016 (4-point bending test), in order to define the characteristics of STRATO® EVA film.
Tests were carried out with the aim of calculating the values of the Young Modulus and the Shear Modulus which express the behaviour of the laminated glass under different types of loads and which determine the stiffness family (type 0.1.2) of the interlayer per load condition.
Following there are some conditions listed in EN 16613: wind gust load, wind storm load, balustrade loads, climatic loads on insulating glass units etc.
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