EVglass Double-Pane Panoroof add-on now available for cold climates

[rkmoray]

Does it effect the warranty?

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[azerik]

The heat is there, it’s very hot about 1/2 inch from the glass. It probably doesn’t heat the car up as much as the cold leaches from the cabin though.
I can get temps this weekend. I’m not trying to solve heating the car up so much as keeping that layer of hot air from the top of my head.
As I understand it there is a foam tape that is holding this on, I’d figure enough air would get past that into the headliner to keep from heating up too much, plus it’s poly, so before cracking the glass I’d expect a big poly balloon on the interior.

once the car is moving the outside air does a great job of stripping the heat from the glass. But if stuck at a light for 4 minutes or (which happens to me 4 times in my pick up the kid drive) so in 115+ that glass is blazing. Takes about a minute of driving to strip the heat from it. I’m trying to just keep the roof area about the same temp. There’s a good possibility this will actually trap heat and make it worse.

there is a couple Tesla’s that are using it around here. Like I said, cheap and easy enough I’ll take the gamble to try it out.

 

[21st Century Pony]

The heat is there, it’s very hot about 1/2 inch from the glass. It probably doesn’t heat the car up as much as the cold leaches from the cabin though.
I can get temps this weekend. I’m not trying to solve heating the car up so much as keeping that layer of hot air from the top of my head.
As I understand it there is a foam tape that is holding this on, I’d figure enough air would get past that into the headliner to keep from heating up too much, plus it’s poly, so before cracking the glass I’d expect a big poly balloon on the interior.

once the car is moving the outside air does a great job of stripping the heat from the glass. But if stuck at a light for 4 minutes or (which happens to me 4 times in my pick up the kid drive) so in 115+ that glass is blazing. Takes about a minute of driving to strip the heat from it. I’m trying to just keep the roof area about the same temp. There’s a good possibility this will actually trap heat and make it worse.

there is a couple Tesla’s that are using it around here. Like I said, cheap and easy enough I’ll take the gamble to try it out.

Erik if it'll work for you in Arizona it'll work for me... pls do write here after you've installed it about how well this shield works with the pano roof in the heat of the Summer.

 

[EVinsulate]

Does it effect the warranty?

The Magnuson-Moss Act provides some protection from a car manufacturer warranty dispute. Essentially it forces the manufacturer to prove that an aftermarket product was responsible for a problem. The EVglass has been around for a couple of years now and no problems reported to me.

 

[EVinsulate]

The heat is there, it’s very hot about 1/2 inch from the glass. It probably doesn’t heat the car up as much as the cold leaches from the cabin though.
I can get temps this weekend. I’m not trying to solve heating the car up so much as keeping that layer of hot air from the top of my head.
As I understand it there is a foam tape that is holding this on, I’d figure enough air would get past that into the headliner to keep from heating up too much, plus it’s poly, so before cracking the glass I’d expect a big poly balloon on the interior.

once the car is moving the outside air does a great job of stripping the heat from the glass. But if stuck at a light for 4 minutes or (which happens to me 4 times in my pick up the kid drive) so in 115+ that glass is blazing. Takes about a minute of driving to strip the heat from it. I’m trying to just keep the roof area about the same temp. There’s a good possibility this will actually trap heat and make it worse.

there is a couple Tesla’s that are using it around here. Like I said, cheap and easy enough I’ll take the gamble to try it out.

I tested to 70C/158F for two hours with no issues. The materials and adhesives I use were selected to stand up to typical summer glass roof temperatures.

 

[azerik]

Lee's concern is the heat trapped between it and the glass getting constantly hotter. I don't have any chips in mine (yet) but I've lost several tinted windshields due to the heat expanding the crack (on other cars).
I have it sitting outside now just to see how hot the glass gets with it being 80 and in the sun ~6 hours. *The evglass isn't in it.
When it's 115+ here I'm sure my roof is probably well over 185.
Are there clips with the MME kit? I'm wondering if I can pop it up there and measure it without having to get new adhesive if I need to pull it out. (Now is the season for testing)

 

[Opa]

The interior glass feeling colder (which it absolutely does, as I learned last Winter and this Winter driving thru Wisconsin, Minnesota, Colorado, Maine etc.) chills the cabin air, which in turn creates convection currents up & down across the cabin which chill said cabin air even further. Those cold convection air currents might feel like a slight draft as they waft across our exposed skin areas.

it is not a draft thru the roof glass... it is a convection "draft" inside the cabin air which is started and then reinforced through the coldness of the large cold surface of the roof glass. A result of one of the several Boyle's Laws on gases, and all that.

That's my story and I'm stickin' to it...

….and from an engineering and physics perspective, you are absolutely spot on correct my friend!

From a perception perspective, I could not believe how cold the convection draft was this winter when we had subzero temperatures!

I’m ordering one today not only because of the cold convection, I’m interested in seeing how it will handle the hundred plus degree heat index as we have here in the summer in Alabama ?

 

[NeilW]

Ordered! Live in Vermont, so definitely fall into the target audience.

Timing of this forum thread couldn't have been better/made for an easy sell! My wife was bumped to the back seat for the first time last night so her friend could fully enjoy her first MME ride. It was an hour-long interstate drive with a 10 degree (F) exterior temperature. Let's just say that she wasn't shy in expressing how much she missed the additional warmth of the heated seats up front. Texted her the link to this forum thread this morning - got back an emphatic, "ONLY $170?? YES!! ?".

Hopeful this add-on makes her next experience relegated to the second row a little less chilly, and will give me an eager extra set of hands to help me with the install in a week or so!

 

[GarageWarrior2023]

Ordered! Live in Vermont, so definitely fall into the target audience.

Timing of this forum thread couldn't have been better/made for an easy sell! My wife was bumped to the back seat for the first time last night so her friend could fully enjoy her first MME ride. It was an hour-long interstate drive with a 10 degree (F) exterior temperature. Let's just say that she wasn't shy in expressing how much she missed the additional warmth of the heated seats up front. Texted her the link to this forum thread this morning - got back an emphatic, "ONLY $170?? YES!! ?".

Hopeful this add-on makes her next experience relegated to the second row a little less chilly, and will give me an eager extra set of hands to help me with the install in a week or so!

Yes that back seat sure is enlightening on cold highway drives. I still am surprised the back wasn't equipped with heated seats.

Our 8 year old used to say it was cold back there when we were on the highway, but since the EVglass has been installed he hasn't complained about being cold at all.

 

[21st Century Pony]

So my EVInsulate panel came in and with it came a little bag with eight (8) er,... "side clips" I guess to hold the panel up along the headliner. However, it also came with one other thing which is a mystery... perhaps someone can help me.

It is a longish (overall small though) clear plastic rectangle with a strip of tape down the middle. The foam tape has a red protective covering on its opposite side.

QUESTION: what is this piece for? Is it meant for the center of the EVInsulate panel? Then why the clear plastic rectangle already glued onto the tape? Thanks in advance.

 

[GarageWarrior2023]

So my EVInsulate panel came in and with it came a little bag with eight (8) er,... "side clips" I guess to hold the panel up along the headliner. However, it also came with one other thing which is a mystery... perhaps someone can help me.

It is a longish (overall small though) clear plastic rectangle with a strip of tape down the middle. The foam tape has a red protective covering on its opposite side.

QUESTION: what is this piece for? Is it meant for the center of the EVInsulate panel? Then why the clear plastic rectangle already glued onto the tape? Thanks in advance.

It's a sample piece so you can see how the foam is attached and how the adhesive piece that connects to the glass works. it's not for installation or any purpose other than for you to see how it functions before you attempt install.

 

[21st Century Pony]

It's a sample piece so you can see how the foam is attached and how the adhesive piece that connects to the glass works. it's not for installation or any purpose other than for you to see how it functions before you attempt install.

Oh wow haha... thank you. I thought I was stoooopider than my son usually accuses me of being

 

[GarageWarrior2023]

Oh wow haha... thank you. I thought I was stoooopider than my son usually accuses me of being

Happy to help. Any time!

 

[NC-GT]

Sounds great. Checked out their site, and should be a big help for North Carolina Summer?

 

[SpaceEVDriver]

I don't think I would use this is a hot climate.

Most of the heat entering the vehicle is through absorption of visible light coming from the front windshield and re-radiation of that energy in the form of infrared light. That IR light (heat) gets trapped in the car because glass is generally opaque to IR light.



The glass roof is probably a source of 10-30% of the passive cooling of the cabin because the hot air rises to the top of the cabin and warms the most thermally conductive object at the top, which is the glass roof. The heat then is conductively transferred out of the interior. In a hot climate, the interior is going to be significantly warmer than the outside. This is especially true while moving, which sets up a forced convection thermal regime.

If you put a cloth cover like the folding sunshade between you and the glass roof, it makes the cabin feel cooler because it stops IR radiation from the glass being directed down onto you while still allowing the hot air to accumulate at the ceiling and to warm the glass, and that heat is then conducted out.

But putting a layer of thermally-insulating anything at the top of the ceiling of the Mustang will trap that thermal energy in the cabin. It won't be able to get to the glass, which is the only conduit for heat out of the top of the vehicle.

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