OPEN's RP-SSR 360-degree standing seam roof panel system has been applied to over 10 million square meters of factory and warehouse roofs. At that time, OPEN chose the standing seam panel with the lowest utilization rate available on the market.

Compared to other more economical panel types such as 470 and 478 on the market, the utilization rate is reduced by 1.5% to 4%. Based on the 10 million square meters of roofing that OPEN has historically completed, this means that OPEN has used an additional 150,000 to 400,000 square meters of roofing material for its clients.

After years of adhering to quality, OPEN's roofing has withstood the test of harsh weather conditions and has gained market recognition. Notably, through rigorous scientific testing, it has achieved the American FM certification, passing the 1-75 standard.

FM is the most stringent and rigorous roof system test, fully simulating the wind load conditions that roof panels face in actual use. "For anything that cannot be calculated, we test it through experimentation," said the head of the FM laboratory. "Practice is the only criterion for testing truth."