It's not a matter of any maintenace thru the top area, it gives away and melt down with the heat from the lighting.
The screens do click in nicely, I agree
The problem for me was the screens are not coated in any way, it seems they dried up from the heating source (I believe) pulling away from the hard plastic areas. My frog tanks got 2 - 3 sprayings per day.
The only thing I can conclude from this was they were not made aswell as they should have been.
Hopefully this is in the past
