New independent testing of PH Insulation’s sandwich panels with polyisocyanurate foam confirmed that thermal insulation level of PIR stayed the same during 8 years of operation. The study was conducted at the testing center of St. Petersburg State University of Architecture and Civil Engineering. According to the tests, the R-Value of the polyisocyanurate in PH Insulation sandwich panel sample remained at 0.020 W/(m·K).
The measurement was made according to the Russian standard GOST R 70723-2023.
The testing was conducted in a climate chamber: the air temperature in the warm section was +19 °C, while in the cold section it reached -24 °C. The relative humidity in the chamber was maintained at 45 ± 5%. Two devices were used for measurements: the Metometer MES-200A and the multi-channel thermal conductivity meter IT-2-96. A unique feature of the testing setup at St. Petersburg State University of Architecture and Civil Engineering is its ability to test large material samples, which significantly enhances the accuracy of the tests.
The current test is yet another confirmation of the durability of PIR in PH Insulation sandwich panels. The previous testing where the R-Value after 8 years of operation was recorded at 0.021 W/(m·K), was carried out at the Construction Technologies and Materials Research Center LLC.
