- Fading is caused by UltraViolet
and visible light
- The coatings on low solar
heat gain low-E windows cut fading almost 50% vs. uncoated
- There are two common fade
measurements:
-Tuv - measured over 300-380nm
-Tdw - weighted over 300-600nm
- Tdw is the more reliable
indicator for fading
- Laminated glass & plastic
films block UV but low solar gain low-E glass has equal ability to reduce
overall fading from UV & visible light
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