Maybe they are doing it to prevent ice and frost buildup overnight? I use a towel for that myself.
Dinevir on
Way easier to use and to keep glass inside clean. Maybe also better temperature control as sun rays are reflected outside the car, not inside. Some sun visors are designed to be used on outside, but not this one. Still, it will do it’s job.
9009RPM on
It’s actually more effective this way but most people put it inside to keep it clean/not stolen
PlayStationPepe on
This is easier than having to shove the shade in windshield area and then put the visors down. I’ve been using an umbrella style that I got from five below and it’s worked pretty well at keeping the inside temp down while I’m away from my car.
leyline on
I love how it’s upside down because they think it looks like sunglasses!😎
Fl4t3ric on
In germany we use it so the winshield doesnt freeze in winter, outside is completely normal for me, would never have guessed that someone puts it on the inside😅
SlipperyGibbet on
Kinda looks like it’s made to go on the outside
asparadog on
Our local gypsies put a duvet on the outside of their box trucks/vans, which apparently has the same effect.
They’re usually covered in unidentifiable stains so people won’t steal them.
IBNored on
Looks upside down too
Agitated-Two-6699 on
Sun shade.
Ok-Opportunity-574 on
Nice if you have a dash cam that gets in the way of a sun visor.
SimplyOrg on
It’s upside down.
poopiebutt505 on
Winter anti frost ones always go outaide.
dronepro on
If it wasn’t for thieves, this is exactly how one should be used. Using it inside the car just traps all the heat between it and the glass, releasing it in the car. Try this in your driveway, you’ll be surprised.
OkImpression8086 on
Possibly to protect from hail.
OverSoft on
Funnily enough, a german magazine tested ways to keep a car cool in the summer last week and the visor on the outside is WAAAAY more effective than having it inside.
katzevonstich on
People at my office do this because otherwise the sun reflects off the windshields in the parking area right into where everyone is working. Not only is having a sun glare in the eyes annoying, it raises the inside temperature of our office. Putting sunshields on the outside of the car stopped it and we didn’t have to sacrifice getting natural light and a nice view of the park.
surdtmash on
If it’s stupid but it works, it’s not stupid.
MagicBoyUK on
Yeah, that makes sense as it’s more effective. People put it on the inside so it doesn’t get stolen!
SP3NGL3R on
This is the way in winter too. More efficient in summer, more effective in winter.
OperationMobocracy on
I’m surprised someone hasn’t come up with a roll up shade sort of thing that could be durably mounted to the car.
silverado83 on
Sshhhh, the cars sleeping..
PhotogamerGT on
I have done this before. Worked better, but not sure it was worth the extra effort.
JeffEpp on
I sometimes use a canvas drop cloth in summer.
cudmore on
Was just in morocco and that was 100% the way and with cardboard.
smb3d on
Also upside down
Bike_Mechanic_Man on
It’s also upside down.
RedditRam24 on
To all the people saying it’s meant to be placed this way, why does the manufacturer put a rear view mirror cutout instead of making it perfectly rectangular?
Ok_Translator_8983 on
Guys. Use this in the winter on a freezing day. It will save you so much time leaving for work
zespak on
I do this all the time, much simpler and much more effective. Best is one with flaps instead of those elastics.
zoeturncoat on
We saw this when visiting Greece last summer.
TrayLaTrash on
Only REAL concern is it blowing away.
EndlessHysteria on
I mean, that’s a new one for me.
CardMechanic on
Maybe it was going to hail 😂
cheetuzz on
apparently this is the new “toilet paper over or under” debate
Djs2013 on
Somewhat common for snow areas to have the outer one to prevent frost too. They also just toss small sections of rug/carpet on it for the same purpose lol
shewy92 on
Kinda like the things for winter.
Angry_Filipino on
I do did this because of my radar/ camera setup, but with the new one I got I just cut out a similar hole at the bottom.
ScarletFang9 on
dawww that’s super cute. Looks like a giant pair of sunglasses.
deathlord119 on
Shhh its sleeping
Boughp on
That sundshade is old and bulky, newer ones can be folded into a circle’ish and easily stand up with the vizors down.
Knees0ck on
A decent idea for snow days
34BoringT_ on
More effective. Avoids the windscreen form being heated up, and thus also heating up the air in the car.
The windshield itself would be heated by the sun if the sun visor was inside the car.
ThisIsntRael on
If I did this in my work parking lot I’d probably get drug tested
ctb030289 on
Hail.
One-Earth9294 on
SLGuitar on
I saw a Reddit post years ago about a dude working at NASA or something with rocket scientists and thinking all these brilliant people didn’t know how it worked only for one of them to finally explain to him that it stops the radiant heat from getting inside the car. Once it passes the glass, that heat is already inside the car and will cause the car to heat up. However, putting the reflective surface on the outside prevents that from happening.
carouselofcats on
Interestingly, this is how I keep my top-floor, ACless apartment slightly more reasonable during the summer—reflective insulation on the outside of all the windows. Works better cuz it keeps the heat on the outside.
(Obligatory I am not AI just cuz I used an em dash.)
48 Comments
Maybe they are doing it to prevent ice and frost buildup overnight? I use a towel for that myself.
Way easier to use and to keep glass inside clean. Maybe also better temperature control as sun rays are reflected outside the car, not inside. Some sun visors are designed to be used on outside, but not this one. Still, it will do it’s job.
It’s actually more effective this way but most people put it inside to keep it clean/not stolen
This is easier than having to shove the shade in windshield area and then put the visors down. I’ve been using an umbrella style that I got from five below and it’s worked pretty well at keeping the inside temp down while I’m away from my car.
I love how it’s upside down because they think it looks like sunglasses!😎
In germany we use it so the winshield doesnt freeze in winter, outside is completely normal for me, would never have guessed that someone puts it on the inside😅
Kinda looks like it’s made to go on the outside
Our local gypsies put a duvet on the outside of their box trucks/vans, which apparently has the same effect.
They’re usually covered in unidentifiable stains so people won’t steal them.
Looks upside down too
Sun shade.
Nice if you have a dash cam that gets in the way of a sun visor.
It’s upside down.
Winter anti frost ones always go outaide.
If it wasn’t for thieves, this is exactly how one should be used. Using it inside the car just traps all the heat between it and the glass, releasing it in the car. Try this in your driveway, you’ll be surprised.
Possibly to protect from hail.
Funnily enough, a german magazine tested ways to keep a car cool in the summer last week and the visor on the outside is WAAAAY more effective than having it inside.
People at my office do this because otherwise the sun reflects off the windshields in the parking area right into where everyone is working. Not only is having a sun glare in the eyes annoying, it raises the inside temperature of our office. Putting sunshields on the outside of the car stopped it and we didn’t have to sacrifice getting natural light and a nice view of the park.
If it’s stupid but it works, it’s not stupid.
Yeah, that makes sense as it’s more effective. People put it on the inside so it doesn’t get stolen!
This is the way in winter too. More efficient in summer, more effective in winter.
I’m surprised someone hasn’t come up with a roll up shade sort of thing that could be durably mounted to the car.
Sshhhh, the cars sleeping..
I have done this before. Worked better, but not sure it was worth the extra effort.
I sometimes use a canvas drop cloth in summer.
Was just in morocco and that was 100% the way and with cardboard.
Also upside down
It’s also upside down.
To all the people saying it’s meant to be placed this way, why does the manufacturer put a rear view mirror cutout instead of making it perfectly rectangular?
Guys. Use this in the winter on a freezing day. It will save you so much time leaving for work
I do this all the time, much simpler and much more effective. Best is one with flaps instead of those elastics.
We saw this when visiting Greece last summer.
Only REAL concern is it blowing away.
I mean, that’s a new one for me.
Maybe it was going to hail 😂
apparently this is the new “toilet paper over or under” debate
Somewhat common for snow areas to have the outer one to prevent frost too. They also just toss small sections of rug/carpet on it for the same purpose lol
Kinda like the things for winter.
I do did this because of my radar/ camera setup, but with the new one I got I just cut out a similar hole at the bottom.
dawww that’s super cute. Looks like a giant pair of sunglasses.
Shhh its sleeping
That sundshade is old and bulky, newer ones can be folded into a circle’ish and easily stand up with the vizors down.
A decent idea for snow days
More effective. Avoids the windscreen form being heated up, and thus also heating up the air in the car.
The windshield itself would be heated by the sun if the sun visor was inside the car.
If I did this in my work parking lot I’d probably get drug tested
Hail.
I saw a Reddit post years ago about a dude working at NASA or something with rocket scientists and thinking all these brilliant people didn’t know how it worked only for one of them to finally explain to him that it stops the radiant heat from getting inside the car. Once it passes the glass, that heat is already inside the car and will cause the car to heat up. However, putting the reflective surface on the outside prevents that from happening.
Interestingly, this is how I keep my top-floor, ACless apartment slightly more reasonable during the summer—reflective insulation on the outside of all the windows. Works better cuz it keeps the heat on the outside.
(Obligatory I am not AI just cuz I used an em dash.)