| Specification | Sterling 20 | Sterling 40 | Sterling 50 | Sterling 60 | Sterling 70 |
|---|---|---|---|---|---|
| Visible light transmittance % | 22% | 41% | 49% | 63% | 74% |
| Visible light reflectance (exterior) % | 44% | 32% | 25% | 17% | 13% |
| Visible light reflectance (interior) % | 42% | 30% | 24% | 16% | 12% |
| Solar heat gain coefficient | .26 | .38 | .44 | .56 | .64 |
| Total solar energy rejected % | 74% | 62% | 56% | 44% | 36% |
| UV Tdw-ISO @ 300 to 700 nm % | 18% | 32% | 37% | 45% | 52% |
| UV light blocked (300 to 380 nm) % | >99% | >99% | >99% | >99% | >99% |
| Fade Reduction % | 78% | 61% | 55% | 45% | 37% |
| Performance Notes:
|
