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In low-e glass, is infrared able to reach the low-e coating?

  1. Nov 27, 2015 #1
    A low-e coating in double glazing should reflect long wavelength infrared rays (LWIR, 8-15 µm). However, glass absorbs LWIR. (For example, thermal imaging camera's cannot see through glass.) Are long wave infrared rays able to reach the low-e coating?
  2. jcsd
  3. Dec 2, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
  4. Dec 3, 2015 #3
    Let me rephrase the question by redrawing a diagram that is sometimes used to explain low-E double paned windows. The low-E coating at surface #3 supposedly saves energy by reflecting LWIR (long wavelength infrared). My question is: glass absorbs LW-IR. Doesn't that prevent the reflection of LW-IR by the coating?

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