Replacing a 38 year old glass pane in back door (I broke it removing old putty).
The new glass is toughened and patterned on one side only.
Is there any convention/advantage for which way round it goes? Smooth side in or
out?
I can't detect any difference in the obscurity either way.
I am inclined to put the smooth side out - since the reason for removing the old
was pane (patterned both sides) was water penetration at the bottom.

Geo