On 7/3/17 12:09 AM, aircan wrote:
My parking space has an old sliding vertical metal door. The motorized
unit has been broken for ages and the door is permanently left open - I
am fine with this since the front of my car protrudes from the entrance
anyway. Above the entrance, there is some sheet metal paneling that has
come loose (photos attached). From what I can see, the top part was
originally fixed with some type of sealant, the bottom part does not fit
very snugly.

What would be the easiest way to get this fixed? As you can see, I have
currently just applied some tape. I am fairly useless with these
situations, so any advice much appreciated!

Maybe self tapping sheet metal screws. Use an impact driver
with a socket to
put them in. Drill bits are available for impact drivers so you won't
necessarily be buying a tool for a single use.