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

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spareine
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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?
 
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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?

doublepane2.png