Product | Norme | Light Transmittance LT (%) | Solar Factor g/SHGC | Shading Coefficient SC | External Light Reflectance LRe (%) | Internal Light Reflectance LRi (%) | U-Value W/(m2.K) |
ST 108 | ISO | 7 | 0.10 | 0.11 | 44 | 39 | 1.9 |
NFRC | 7 | 0.11 | 0.13 | 44 | 39 | 1.88 | |
ST 120 | ISO | 18 | 0.22 | 0.25 | 32 | 30 | 2.6 |
NFRC | 18 | 0.23 | 0.27 | 32 | 30 | 2.51 | |
ST 136 | ISO | 34 | 0.34 | 0.40 | 23 | 23 | 2.7 |
NFRC | 34 | 0.36 | 0.41 | 23 | 23 | 2.62 |