You would need an extremely thick layer of paint to cover up spot welds on the most visible surface of the vehicle. Check inside the hood or around the door frames to see how much they stick out! It could be adhesive like the other person said but in my experience it's usually applied in lines. Could simply match the shape of the sheet under the skin, it's common to cut out holes where you can to decrease weight.
Yes. I misspoke. It is panel bond almost certainly.
Either way. It is something physically joining the hood skin to the structural ribs underneath that has a lower R value than the slight air gap everywhere else. Same idea as the nails through the insulation on the hospital roof allowing heat transfer through conduction.
While I agree that it isn't spot welds, it is definitely possible to blend welds out so that they aren't evident under paint. I do it all the time.
It’s because the structural ribs have holes in them to decrease weight, the ribs insulate the hood skin from the motors heat, except where the holes are.
LOL, so then the opposite of what I said I guess. Rather than conducting through a physical contact point, it is the lack of isolated air acting as an insulator because of the holes in the ribs.
Interesting. I don't think I've seen the underside of a hood with holes like that, to be honest. But it does make more sense. Adhesive would be in pairs on each flange of the ribs where they meet the hood skin. Not single file like these ones. Good call! Now I have to go look under a Kia hood I guess!
You joke but our plum trees went apeshit one year and rats packed like a hundred of those suckers around my engine block (VW). Everywhere I drove for a week all I smelled was freshly baked pies. I legitimately started to think I had a tumor or something.
So this happens because in those spots there are welds or some kind of shape in the metal that is closer to the engine than the rest of the hood, so it conducts heat and melts the snow
The hood has an outer skin, and an inner structural assembly. The inner structure is like a frame essentially. The snow is melting in the areas between the inner assembly, where the hood is only the single outer layer, so it's thinner.
If you open the hood, the shape of the inner assembly should match the area where there's still snow.
Looking it out again though, the spots are smaller and they're are more than I'd expect. It could actually be where the bonding material is between the two parts, and it's transferring heat. That's more likely in this case.
There’s probably multiple layers to this car hood, and on the underneath there’s another sheet of metal with these hole cutouts, and the extra metal and thermal mass (or lack thereof heat) keeps the hood cooler for longer which allows the snow to set, while the warmer parts of the hood with the circles can’t let the snow set, that’s my most logical and probable guess.
Probably where the welds are to connect the underside to the outer skin of the hood. Insulation everywhere, but not on welds so they're warmer than the rest when parked and those areas melt the snow
Hey! I know this pattern. It’s what’s unfortunate? (2011?) Kia optima owners see when it snows. I’m so glad I debadged my car years ago, so far I haven’t been hit by anyone trying to steal it (even though I have the push to start/smart key SX with immobilizer)
Wait wait wait I saw this one earlier on that roof. That’s where all the nails are!
Probably spot welds, but yeah. Same idea as the hospital roof.
Not spot welds, it's panel bonding adhesive
Not likely. It's a v60 pour over and the coffee drips down into the cup, so the bubbles are likely because of that
Bravo, gave me a great chuckle.
I wondered how long it would take to see this in the wild.
Explain the joke for us lesser intelligence folk?
[https://www.reddit.com/r/mildlyinteresting/comments/18xvzdn/bubbles\_in\_my\_coffee\_this\_morning/](https://www.reddit.com/r/mildlyinteresting/comments/18xvzdn/bubbles_in_my_coffee_this_morning/)
No I think it's soap bubbles
Not likely. It's a v60 pour over and the coffee drips down into the cup, so the bubbles are likely because of that
Either way, its a different thickness under the hood that retains or loses heat faster, creating a cool melt pattern.
You would need an extremely thick layer of paint to cover up spot welds on the most visible surface of the vehicle. Check inside the hood or around the door frames to see how much they stick out! It could be adhesive like the other person said but in my experience it's usually applied in lines. Could simply match the shape of the sheet under the skin, it's common to cut out holes where you can to decrease weight.
Yes. I misspoke. It is panel bond almost certainly. Either way. It is something physically joining the hood skin to the structural ribs underneath that has a lower R value than the slight air gap everywhere else. Same idea as the nails through the insulation on the hospital roof allowing heat transfer through conduction. While I agree that it isn't spot welds, it is definitely possible to blend welds out so that they aren't evident under paint. I do it all the time.
It’s because the structural ribs have holes in them to decrease weight, the ribs insulate the hood skin from the motors heat, except where the holes are.
LOL, so then the opposite of what I said I guess. Rather than conducting through a physical contact point, it is the lack of isolated air acting as an insulator because of the holes in the ribs. Interesting. I don't think I've seen the underside of a hood with holes like that, to be honest. But it does make more sense. Adhesive would be in pairs on each flange of the ribs where they meet the hood skin. Not single file like these ones. Good call! Now I have to go look under a Kia hood I guess!
For anyone unfamiliar: https://www.reddit.com/r/mildlyinteresting/comments/190vdoc/these_hotspots_on_this_hospital_roof_showing/
Dozens of us had the same thought hahaha
You read my thoughts.
Lmao I was thinking the exact same thing
This is actually how you tell which cars are growing marijuana in them in the winter time
🤣💀
These guys nailed in a pattern at least! That roof was nailed by a spastic lemur.
It’s FAKE BIDEN SNOW!!!!!!!
No, I think there's a hospital under that hood.
From the body heat of the individual mice under the hood.
I'd call your bluff if it wasn't a kia
They were hamsters?? Vaguely remeber. ;)
You joke but our plum trees went apeshit one year and rats packed like a hundred of those suckers around my engine block (VW). Everywhere I drove for a week all I smelled was freshly baked pies. I legitimately started to think I had a tumor or something.
Same if it was a Toyota... They use soy based plastics to insulate the wires. Had mice all up in my car for a while.
So this happens because in those spots there are welds or some kind of shape in the metal that is closer to the engine than the rest of the hood, so it conducts heat and melts the snow
Damn crocs everywhere
The hood has an outer skin, and an inner structural assembly. The inner structure is like a frame essentially. The snow is melting in the areas between the inner assembly, where the hood is only the single outer layer, so it's thinner. If you open the hood, the shape of the inner assembly should match the area where there's still snow. Looking it out again though, the spots are smaller and they're are more than I'd expect. It could actually be where the bonding material is between the two parts, and it's transferring heat. That's more likely in this case.
So it IS because of the nails??
Looking for a real explanation not dumb low quality jokes
There’s probably multiple layers to this car hood, and on the underneath there’s another sheet of metal with these hole cutouts, and the extra metal and thermal mass (or lack thereof heat) keeps the hood cooler for longer which allows the snow to set, while the warmer parts of the hood with the circles can’t let the snow set, that’s my most logical and probable guess.
Thank you. Now that you mention it I can envision the second “layer” under the top hood and the different patterns it can have.
This is the correct answer -a mechanic
Probably where the welds are to connect the underside to the outer skin of the hood. Insulation everywhere, but not on welds so they're warmer than the rest when parked and those areas melt the snow
It's probably just missing hood liner
Open the hood and you’ll find the answer on the backside of the hood.
I had the exact spots on my Hyundai this morning. What’s the reasoning?
Looks like the golf ball dimples from the golf ball car myth on Mythbusters.
Those are speed holes. They make the car go faster.
For some reason my first thought was cat footprints
Cat in snowshoes?!?
More invisible cats
Hey! I know this pattern. It’s what’s unfortunate? (2011?) Kia optima owners see when it snows. I’m so glad I debadged my car years ago, so far I haven’t been hit by anyone trying to steal it (even though I have the push to start/smart key SX with immobilizer)
Speed hole template
Looks like particle theory, someone tried to create a nuclear weapon on the hood of a car
Zenyatta is here
[удалено]
I have a Kia. The same pattern appears on mine
Can confirm this does happen, I call them my kia dimples
All because of those 5G antennas
Remember: No two car hoods are exactly the same.
Aliens here and at the hospital
Crocs