Title: +038=627.001-##001T_03-Fasadevasksystem NorAcon - International Code of Practice (ICOP).pdf
The levels of protection are:Good: UPF 15 to UPF 24 (93.3 % to 95.9 % UVB filtered out);Very good: UPF 25 to UPF 39 (96 % to 97.4 % UVB filtered out);Excellent: UPF 40 to UPF 50+ (97.5 % to 98+ % UVB filtered out).