This building owner was getting a hard time from the health department about the rust on the cooler walls. The solution, use prefabricated fiberglass insulation panels to cover up the walls.
The only problem, they covered up everything including the rust.
with additional insulating materal add on somehow it can make it more diffucultay to remove the lumiaire globe to replace bulb
Although it is not easy to tell from the dark photo, around that fixture they decided to spray urethane foam insulation around the globe to really seal in the gap.
Tough to change the bulb... I'd say that's an understatement!