no idea why people here think this..... we've been here and on the coast since 2006.... NEVER had anything melt in the attic. but of course proper ventilation... Our other house was 2600sf and the attic had 9 vents compared to 2000sf and 3 vents.... that's the difference I put in a solar attic fan and it resolved the issue for $1000. The vents that I wanted were going to cost twice as much so I settled for the fan and it does provide the same as I was getting in the other house with more vents.

hope that helps

You’ve gotten a lot of opposing responses….. here is mine .

We’re on our third home , the second has the reflective barrier .

We have stored everything in the attic space above the garage since 2006 without any problems .

We place the luggage in large plastic garbage bags and have had no issues.

Oh, and no signs of “amalgamation” due to the use of plastic ! :)

I’ve lived in South Florida my whole life and we always store our suitcases in the attic with no issues. This is the first Ive ever heard of such a thing happening.

No damage - give it a try and see for yiurself.

What one poster said about the attic being difficult to get into will be true---if you live here long enough. We have items up in ours (can't remember what they are now though---so must not be important) BUT we don't go to fetch them as any ladder isn't safe at this time in our lives. I've been thinking about asking for a younger person to help us THEN if the stuff is still salvageable, it will go to thrift stores. Attics/garages do get hot here. Florida weather isn't the same as up north.

Our house, garage faces south. Been storing wheeled , soft sided luggage for over 3 yrs in garage attic. No problems with wheels; we use the luggage almost yearly in fall or spring for short trips, theen back into the attic. We don't have any special exhaust fans or opening up there to let the hot air out. However, the heat destroyed the soles of my hiking boots after 2 yrs of storage, my error.

Hot
 

I put shelving around the garage - I'm guessing it gets near 110 up there and no barrier works for hours

If the heat would melt the hard plastic wheels, wouldn't it be hot enough to set your house on fire ?

I have lived in FL for 51 years. My last house had an attic you could walk around in like a large room. We stored EVERYTHING in it and never had anything damaged or melted. Our teeny tiny attic now has our luggage, Xmas decor, baby books and items, and a few other items being stored for future grandchildren and nothing is damaged or ever been damaged. I think that when suitcases fall apart, it has nothing to do with heat. My brand new one was damaged in transit by handlers. It never even made it to my attic. 🙄

Luggage Storage
 

My dad, a mechanical engineer, lived in FL, used to put hooks in the garage ceiling, then ropes, then tie the luggage up high to use for the occasional trip but have out of the way in his rather neat garage.

We kept our TravelPro spinners in the attic. When I got them down last spring, on two of them the hard rubber extension handle and the outside buckles that keep the suitcase from falling open had gotten sticky from the heat. Just two out of the four, but that was enough for me to find somewhere else to store them.
I assume this was because they were up in the attic over two summers prior to last spring due to Covid lockdown/ageing dog, and we were unable to spend those two summers elsewhere.

When we moved here in 2001, I made the mistake of storing luggage in the attic space above the garage. The leather luggage got mold all over it and I had to through it out. In the master bedroom, we have a linen closet that go all the way up to the high ceiling. It was a waste of space for it to go all the way up. A carpenter/handyman cut a hole above that closet, put a bottom floor in there and added 2 large doors. He painted it the same color as the walls and nobody notices it until I point it out. It is a huge storage space for luggage and other things. See how high up your linen closet goes because you might have a room for another cabinet. You will need to use a 2 step stool or ladder to get your luggage. I love it.

I've stored luggage in the attic for 24 years and have had only one older suitcase lose a wheel due to heat.

Been storing things in the attic for 30 years with no issues.

Don’t worry I’ve had mine there for yrs