In certain airports, like the T1 of MMMX the windows are blocked or semi-blocked

blocked window

while in others are not (MMGL)

unblocked window

I understand this could be done to avoid debris hit the windows, but then why?

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    $\begingroup$ Are they not simply sun shades? $\endgroup$ – Toby Speight Dec 13 '18 at 17:07
  • $\begingroup$ @TobySpeight Its too wide and heavy to be, but I didn't think this way. $\endgroup$ – riccs_0x Dec 13 '18 at 17:13
  • $\begingroup$ I don't see that this has much to do with aviation. Airport windows are presumably like windows in any other large building, so the considerations about building codes, sunlight, cleaning, maintenance etc. would be the same. $\endgroup$ – Pondlife Dec 15 '18 at 19:03

Keep the sun out if facing south or west, help keep the temperature down.

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  • 1
    $\begingroup$ Or North, if in the Southern hemisphere. :) Or pretty much any direction in the tropics. $\endgroup$ – reirab Dec 14 '18 at 0:45

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