it's been about 90F here the past few weeks. My garage has poor insulation and the roof absorbs the heat. Around 3pm it's about 100F in there. After driving probably a little more.

Is there any risk to damage of the car sitting in that heat all the time? I know when it's cold the tires don't like less than 40, but I'm curious if it's bad for the leather or seals etc.

Thanks

 

It’s fine. No harm will come from it.

 

No

 

I've seen it all now.

First, it's "car has never seen rain"

Now? It's "car has never been in heat."

 

Climate controlled storage? Does happen.

 

Heat won’t bother the car. If you actually spend time detailing or working on cars or things in your garage, then I’d recommend getting an A/C unit in the garage for your own comfort. A simple wall unit does wonders.

 

100F is fine. Direct sun is the true enemy.

 

Thanks, I've seen dashboards ruined from the sun in FL. I put a thermometer in the garage today and it was 108.

 

I have a climate controlled garage. It is a wonderful thing.

 

I have my windshield tinted at 70% in Florida. Looks clear so won’t get a ticket. Amazed at the heat rejection when combined with tinted windows all around with the new IR blocking tints. I don’t need to put up a windshield shade. Tint should also protect the leather dashboard.

 

Garages in Arizona really get hot. 108 is nothing.

 

Mine gets hot from both cars, plus I sealed around the doors and tuna dehumidifier to keep it below 55%.
Heat is never an issue, sunlight, humidity and rodents are what does the damage outside, inside and on the loom.

 

I have a heated and cooled garage (just built it a few years ago -best thing ever - but another story). It won't hurt your car at all, but if you want to be more comfortable if you work in your garage. I have two Big *** Fans (name brand of the fans) that I keep running in the higher heat instead of turning on the AC which takes time to cool and also wastes $ if I am only working in the garage a few hours on one of my cars. Today it was 94 degrees, and with the fans running it was 76 in the garage (mine is insulated, but once you get the fans going it drops the temp nicely). Did a quick oil change in one of our cars and would have taken as long to get the AC down to temp than just turn on the fans and drop it to a comfortable temp for the couple hours I was working in the garage.

I only turn on the heat or cooling when working extended periods in the garage doing projects. Otherwise I just let it go. As mentioned direct sunlight and elements are the issue - not indirect heat or cold. (not talking about Alaska cold for all those true Northerners) :-)

If you get a couple of big floor fans and want to work in your garage, just create a few air paths with a fan or two and you will lower the team by 15 degrees (even if uninsulated.)

 

Is your garage door facing the sun in AM or PM? I if so, get a double bubble garage door kit to reflect the IR heat coming in from the sun. Home Depot has 'em. Next would be ventilation. And so on.
After thought. If you could get between your garage ceiling to add a radiant barrier that would help. Alternatively, you could staple a layer of that double bubble radiant barrier from Home depot to the inside ceiling and walls. That would prevent the solar IR from shining through, but obviously changes the looks of walls and ceiling (as well as the garage door) from inside the garage. Reflective double bubble is very effective at preventing solar IR heating, as research by U of Florida. And it's cheap compared to to do many other solutions.
For personal comfort inside a garage, a big ceiling fan is usually the first solution. Then AC, etc

 

also don't think it matters. I'm building a house as we speak and having my 3 car garage insulated and having a split unit installed. Probably keep it on to help with the humidity here in FL.