The tested system had three layers of glass, plastic frames, and the PLURAL innovative ventilation system. The fire performance of the specimens was assessed by performing “Reaction to Fire” tests, following the EN 13823: 2020 standard, also known as Single Burning Item (SBI) test. Calcium Silicate panels were used to complete the test areas not occupied by the window, according to the SBI requirements. 

The results highlighted the effect of ventilation and specific materials on the overall fire performance of such smart windows. The classification of the smart window was estimated to be C-s3, d0, based on the test results indicatively presented in the video.  There was a radical rise in the temperature of the specimen, especially after the 900-second mark; the temperature in the upper vent reached a peak of 950oC.  

The use of a standard, non-fire-retardant treated plastic window frame was the main reason for the collapse of the specimen, as well as for the very high temperatures measured in the frame. The use of a fire-treated material in the frame is expected to significantly improve the overall fire behaviour of the unit. 

Watch the Fire testing video here.

To discover more about the project visit the PLURAL website.

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