Should I Get My Car Windows Tinted | The Top 10 Tips | Auto Expert John Cadogan

Should I Get My Car Windows Tinted | The Top 10 Tips | Auto Expert John Cadogan

Time for a quick Jihad on bullshit: the top
10 things you need to know about window tinting. Good idea or not? That’s next.
Warning: This segment is rated ‘S’ for ‘science’ and ‘T’ for ‘thermodynamics’.
I’m very sorry about that. Occupational hazard. I’m John Cadogan from
– the place where Aussie new car buyers save thousands off their next new cars. Without
face-to-face car salesman brain damage … unless of course you really want that. We could arrange
it, hypothetically. It’s just nobody’s ever asked for that specifically. Hit me up on
the website if you want a new car cheap. In ‘Straya. That’s what I do.
Lots of people ask me about window tinting – last week, I got this:
“Is aftermarket tinting of any value? Our whole family is fair skinned. I believe the
standard side windows are by default SPF 46 or 48 and custom darkest legal tint only improves
that to SPF 50. Are these figures correct and if so what is the value of this accessory?”
So – for those of you unfamiliar with ‘Straya: We love football, meat pies, kangaroos and
… melanoma, sadly. And that last one is a real problem, driving along mid-summer in
our sunburned country in our shiny new … ultraviolet ovens.
There are actually three flavours of UV light. UVC, which never really makes it to the Earth’s
surface – so, not really a factor. UVB, which is what causes sunburn – but is not that prolific.
And UVA – the big one – 30 to 50 times more prevalent than UVB. Penetrates the skin more
deeply. And then has prison shower sex with your DNA, unpredictably.
UVA is what you bombard yourself with if you’re moronic enough to lie in a solarium.
There’s no case to be prosecuted that exposure to any of the flavours of UV is a good idea.
Especially if by ‘you’ it means you parking your caucasian/Celtic DNA in our sunburned
shithole this summer. While we’re talking flavours: There are two
flavours of automotive glass – laminated and tempered. Laminated glass is used for windscreens.
Where glass is the bread, and a layer of polycarbonate is the filling. Happily enough, laminated
glass blocks almost all UVA and UVB radiation. The second flavour: Tempered glass – like
the windows and the rear screen on most cars. It’s just normal glass that’s been heat
treated. That toughens it up and introduces high residual internal stresses so that when
it breaks it does not form long shards that slice and dice you in a crash. That’s bad…
Sadly, tempered glass really only blocks almost all UVB radiation (the sunburn one). Unfortunately,
tempered glass blocks only about 20 per cent of DNA-damaging UVA (that’s the prolific one).
In other words – it allows 80 per cent of UVAmore or less straight through.
And that’s just a rough guide – the actual amount transmitted depends on the composition
of the glass and the thickness – it’s not like there’s a mandatory standard for UV
transmission and automotive glass. So – you’re definitely better off driving
with the air conditioning on, and the windows up. But if you are driving along and the sun
is streaming through the side glass, you probably won’t get sunburn but you are still being
bombarded with about 80 per cent of ambient UVA. So that’s hardly ideal.
Does it not therefore suck the big one that most sunroofs are tempered glass, and not
laminated? I mean, if the world were perfect, I’d take laminated, and banish both UVA
and UVB. Unfortunately, that’s not a choice available to even the scientifically literate
contemporary new car buyer. And I hate that. Credible branded tint films – from a business
you could conceivably believe, like (say) 3M – make claims about UV protection. 3M says
each of three of its automotive tint films (quote) “blocks up to 99 per cent of harmful
UV rays” and for the other one it’s “up to 99.9 per cent”. So that sounds pretty
good. Unfortunately though, I don’t know what
“up to 99 per cent” actually means. Last time I looked, it meant “less than or equal
to 99 per cent” – which is hardly reassuring. I don’t know what “harmful UV rays”
are, either. Because, according to the Cancer Council, they’re all harmful.
I don’t know if this 3M “up to 99-whatever” business is just lawyers and their weasel-word
bullshit, and/or generalised marketing department arse-covering and/or illiteracy. But it hardly
inspires complete confidence in the product. If you were to take these 3M claims in the
most favourable inferential light possible, there is absolutely a case for window tinting
if it could be guaranteed as a means of blocking all of that UVA that the side glass is so
absolutely good at letting through to ravage your DNA.
According to the Cancer Council: “Clear or tinted films can reduce the amount
of UV radiation penetrating through the side glass by over 99%”
According to 3M, one of its four automotive tint films are (quote): “SPF of over 1000”
but two are only (quote): “SPF of up to 1000” – damn those legal and/or marketing
bullshitters to the pit of hell. And the remaining one enjoys no SPF designation on 3M’s website.
3M also says those three products that do enjoy SPF claims are Skin Cancer Foundation
recommended products. The scientifically illiterate are pretty good
at conflating visible light, heat and UV – but they’re actually from different parts of
the spectrum. So it’s worth noting that even a film that looks ostensibly clear – like
the 3M Crystalline one – can allow 90 per cent transmission of visible light and still
do the mad “up to 99.9 per cent” UV-blocking voodoo.
It’s also worth noting that while dark films are perhaps a bonus in the daytime, they might
be a safety compromise at night. Which is why there are regulations.
Here in ‘Straya, there are only regulations for visible light on window tint films, not
UV. It’s called ‘Visible Light Transmission’ or VLT. The minimum VLT is 35 per cent. In
other words, tint films are not allowed to block more than 65 per cent of the visible
light. No tinting is allowed on windscreens – not
even a clear film – except in a strip up the top. In the Northern Territory 16 per cent
VLT is allowed on windows behind the driver (so – second seating row and back from there).
In WA and Queensland it’s 20 per cent. If you breach the VLT specs in your state,
and get pinged, the car is rendered unroadworthy, and then – in the immortal words of Gunnery
Sergeant Hartman – you’ll be in a world of shit.
I really don’t think there’s that much of a safety component to tinting. Dark films
might reduce side vision a little bit at night, but might also reduce fatigue during the day.
In a crash where the side or rear glass gets shattered it might mean there’s fewer hail-sized
residual stress relieved glass particles being shot around inside thanks to inertia. The
film might bind them together. Just like The Force.
Right about now we’re on the cusp of another six months of summery hell, here in ‘Straya.
So a key question among car buyers is: Will tinting make my car any cooler?
And the clear answer is: Not really. Tint film manufacturers – knock me down with a
feather – make all manner of bullshit claims about cooling. Here’s one 3M prepared earlier.
“…rejects up to 97% of the sun’s IR rays and rejects up to 60% of the heat coming through
your windows.” – 3M This is one of those bullshit claims that’s
probably true – it’s just self-promoting and meaningless. Inconsequential is probably
the best word for it. There are two main modes of heat transfer to and from your car – radiation
and convection. Radiation is from the sun streaming through
the vacuum of space – those photons – for 500 seconds, or something, and then belting
into your car and turning it into an oven. And convection is the main mechanism for heat
loss from or cooling from the hot car – essentially bleeding heat off into the surrounding air.
That’s just how this works. Heat transfer for dummies. Eventually you get to a point
of temperature stabilization – you might call it heat soaking, where heat loss to convection
equals heat load from radiation. (And I’m simplifying this just a bit, because the car
also rejects heat by radiating.) Anyway – the thermometer is stable, ultimately, in respect
of the air temperature inside the car. Thought experiment time.
Summer. Hottest part of the day. The main radiant heat load is hitting the roof, not
the windows. Therefore, the windows are not a contributing factor in a major way to radiant
heat load. They’re just not. Therefore, tinting can’t help much, even if it does
block radiant heat. Tinting is also an additional layer of thermal insulation over the windows
– and this will hinder convective heat loss. Marketers – such bullshitters – the up until
now undiscovered fourth law of thermodynamics. If tinting actually made your car cooler,
3M and its competitors would be doing umpteen tests that demonstrate this everywhere from
here to Dubai and Egypt. If you want your car to be cooler in summer
– just park under a tree. The leaves absorb solar radiation to photosynthesize. Or fit
a small adhesive solar panel and run a fan that draws ambient air into the car to improve
convective heat loss from within. Far more effective
If you decide to go ahead with getting your car tinted you want someone credible doing
the job of applying the film. Make sure they give you a guarantee, and make sure they’re
likely to be in business still, in three to five years – in case you need to make a warranty
claim. Make sure they don’t exceed the VLT limitations in your state.
Make sure they use a credible film from a reputable manufacturer – not some cheap Chinese
knock-off crap that looks suitably dark but which you have no way of knowing whether or
not it actually blocks any UV radiation. That’s kind of important.
Commercially, one of the ways a tinter can pump up his profit is using the lowest cost
tint film. The input materials, right? You definitely don’t want that.
Finally, my number one tip is: Do not get the dealership to tint the windows for you.
They get the same tint guy you could get to do the job. He’ll drive in, in his van and
he’ll do it before you collect the car. It’ll be a convenient exercise.
It’s the same tint, done by the same guy – guaranteed. The only difference is: The
dealership will screw him down on the price, and mark up that same price up for you – by
the traditional dealership parts and accessories margin of one billion per cent.
On special – this month only (perhaps): We’ve slashed our margin on tinting down to just
500 million per cent. That’s 50 per cent off. Don’t miss out. (That statement brought
to you by The dealership will of course dangle the carrot
of wrapping this over-the-top tinting cost in the finance – so you can generate even
higher commissions for the dealership there, and pay even more, ultimately, for the tinting.
Lucky you. In conclusion:Automotive glass does a decent
– but not exemplary – job of blocking some UV. Unfortunately it does allow quite a lot
of damaging UVA straight through. Tinting – with the right film – is certainly a hedge
against that. The dark stuff for the rear glass – in the states that allow that – is
a decent (but imperfect) hedge against prying eyes, too. And it could help in a very minor
way in a crash. But blocking that UVA is the main rational
reason for getting your windows tinted. Up to you. I’m John Cadogan – thanks for watching.

About the Author: Michael Flood


  1. When I was young, I lived in New Mexico. Lots of sun and heat. Dark tint worked great and it kept the sun damage and heat damage down. Now, at that time and youthful eyes the tint wasn’t a big issue at night. Now at 52, I have 15% tint and let be in Ohio, lots of overcast days… anyway I don’t think I’ll tint my next vehicle windows because it’s becoming difficult to see well at night.

  2. That was a very informative video. The dealership got me. I had my windows tinted and that cool red stripe on the side of my car put on by a graphics company and they added their price to my loan. It was the same. Actually, I think they saved me $100 because they did it at the same time. As far as keeping the car cooler. It looks way cooler than it did before! You see what I did there? LOL

  3. Sorry to comment on an old video. But you conclusion on heat reduction is over simplified. All you reasoning are correct however they are not applicable to reality. The real thing matters in the case is how the occupants in the car felt. Safely assume most of us will have a/c on in hot summer days and also assume a/c works as expected, the only method of heat transmission to occupants inside the car is via radiation. Therefore if the tint film does reject(reflect or absorb) IR radiation as manufacture claimed it should make meaningful difference on how occupants felt in side the car. I agree tint may not reduce the overall head load, but it will should make driver or passenger a little more comfort in hot days.

  4. Im CERTAIN my tint prevents crazy heat…..with tint I feel like I sit in the shade, no instant sting on my skin from the sun….without it, instant sting from bright sun directly on my arms. Parking of course the temp reaches the same heat level eventually, but driving with AC, TINT makes a huge difference.

  5. So if you drive east to work every morning and drive west every afternoon and don't wear sunscreen in the car, get used to the words skin cancer.

  6. Grew up in Las Vegas, Nevada. Without tinting, at least on 90s cars, the steering wheel was untouchable in the summer days. I tinted all my windows and used a sunshade and I never had a skin scorching steering wheel or seat ever again. Also, the exposed parts of my legs and arms never hurt from burning again. It may not be magic but it definitely increases comfort. I know this is anecdotal and n=1 is not saying much but you can't convince me to go without tint. That said I will research what kind of glass my next vehicle has and if it's laminate I may drive it for a month before heading to the tint shop.

  7. How come rear windows are subject to tinting regulations. Goverment should ban commercial vehicles than. As the whole rear side is made of metal, and the only way to look back are the side mirrors

  8. If you're living in Australia, over 40 and you don't have lizard skin it's a bleeding miracle. There is no such thing as a beautiful Australian over 40. Made worse by the local penchant for laying out like a lobster in summer to achieve that look of nicely lightly cooked lamb in Australians in their 20s which becomes over cooked mutton very much overlookables 30s and down right shriveled up iguanas by their 40s.

  9. If most heat is transmitted through the roof is it possible to insulate the roof? Less work work for the air conditioning and better fuel economy. And maybe fewer dogs and children dying of heat stroke in parked cars.

  10. Oi mate, don't use that word 'jihad', 😔 leave that for the Islamic terrorists, don't normalize it. It doesn't belong in Australian English Sir.

  11. Proper tinted windows cut sun pouring through our windows and that lowers the heat. Parked under a tree or a car port is great, but the car will still be hot. It's blocking the sun from coming through the windows as you're driving that gives tremendous heat reduction. So window tinting is necessary in Australia and places that get nearly 300 days of bright sunshine per year. Love Australians by the way!

  12. I'm only halfway into the video and have to comment. This is a hilarious, wonderful presentation, thank you so much for making it. That said, get your vitamins, minerals, trace minerals, and essential fatty acids (all from a high-quality supplier), and you Aussies probably won't have such a terrible time with the Sun. Just my opinion. More videos, please! This is wonderful,.

  13. Could you re-examine the radiant heat blocking thing. The reason I ask (and seems to be reflected in some of the posts in Comments) is that while I understand your point about convection and general ambient, the only time I've had a distinct problem with heat in my car is if it's sitting in the sun and my STEERING WHEEL, seat, whatever, is freaking COOKING from sunlight exposure.

    So, sure, from an ambient temperature it might still be hot, but, as some have mentioned, surfaces inside the care (which might also include your face/arms) would receive the benefit of having direct sunlight irradiation blocked by some %, wouldn't they?

  14. Then all we have to do is to conduct an experiment on cars with tints and one without as a control. So we can measure the UV rays passing through, Temperature inside the cabin.

    Then we can prove whats wrong and what's not experimentally without any guessing.

  15. The only reason People Tint there Windows.

    Is because these People think they can't be seen. Picking there dirty Nose!!!

  16. Ive had 15% tint for years, no problems with vision. some people have no tint , don't see a bus size object with flashing lights and still drive into it .

  17. Good info Dave and thanks for the laugh as usual.
    I recommend those thinking of getting tint to get a mate with his flash black leather seats and who has legal or illegal window tint and sit the car in the sun for 30mins (5mins up north of "straya"). Open the door and sit down so your arse and hamstrings can judge the temp, then hop out with the door open exposed to the sun and after 20 seconds (5 in north "straya") sit back down. Tell me it's not fucking hot enough to boil your pills….and by pills I mean your testicles for those non Aussie cunts!
    I'm speaking from years of scientific experience where I live in Nth Qld….
    I would have thought by now that someone would have marketed white terry towel seat covers for us in the northern shit hole of straya…. I guess the travelling sheepskin man will have to do!

  18. Victoria 2008 pulled over by Highway Patrol for no P plate and illegal private/limousine tint (but legal on the front), the officer told me if they can see the driver and front passenger then they don’t give a shit about the darkness of the rear windows. Then had a general duty try and do me for the tint at an RBT till I repeated what the HP officer told me and even the HP officers present at the RBT said yep, it’s fine, let him go ✊😎 Don’t know about these days though haha

  19. in the philippines they tint the windscreen aswell,can't see much at night so the wanka's drive with high beams on all the time,cheers

  20. 2 questions. Does tint film affect the ability to break the glass in the event of an emergency? 2nd question… some car waxes claim to block UV rays. What would happen if those speciality car waxes were used on windows? Why is there no Uv blocking paste wax specifically made for windows? Perhaps it would be a great idea for a new product. Suntan lotion for your windows

  21. I was deployed in Iraq last year. We had Mitsubishi Pajeros to get around. They were all window tinted with gangsta-dark tint. There are no rules about how dark the tint has to be. It did 2/3 of fuck all. A 49 degree day will heat up the car no matter what. All it did was reduce visibility at night, especially though night vision devices. I’d never have it done back here.

  22. I call Bullshit on your understanding of radiant heat through the windows. Some tints really do block radiant heat to a great degree and make it much more comfortable and cool much much quicker. SolarGard ceramic is what I use and the difference is crazy. Every single person in my truck during summer mentions it.

  23. I've never under stood why all cars would not come with their windows tinted from the factory, including the driver and pas front side window. SUV's mostly come with all the windows tinted except the front driver and pas side. My main question is why not sedans , they should come with their windows tinted like the SUV's.

  24. Lanmodo Car Tent, Portable Automatic Car Umbrella Tent Remote Control with Anti-UV, Water-Resistant, Proof Wind, Snow, Storm, Hail, Falling Objects 137.8X82.7 inch (3.5M Auto Without Stand, Black)

  25. I'd get mine tinted except that it's now illegal where I live. Thank you government for making useless laws that don't actually protect anyone.

  26. I only tint them in order to deflect the radiation of thiefs… and to be able to strip down nekked without nosy people glacing at my junk or my disposal region…

  27. Window tint significantly reduces the bite I feel through the side windows and makes it much more comfortable when I have sun going through it. That's my main reason to have it on all windows other than the windscreen

  28. Windscreen sunshades are bullshit for the same reason. ALSO worth noting that SPF rating of sunscreens only rates UV-B protection. Even 'broad spectrum' sunscreens, the rating only relates to UVB, the UVA protection is not guaranteed and is unrated.

  29. Brilliant John but can you explain privacy glass which is dark and OEM. For example our family cay which is a Kia Carnival Platinum. Cheers

  30. You should do a video explaining how we're supposed to know if a credible tinting company will, "…still be in business in 3 to 5 years".

  31. I have made several enquiries to have my daughters and my car's windows tinted with several mobile companies (franchises) who do a bit of advertising. 0% response form all concerned. On the accident side of things I had a knob who was adjusting his butt plug or something instead of looking out of his windscreen and drove into the back of my EGas Falcon Wagon so hard I was knocked out when my head hit the upright of the back seat. My tinted back window (although shattered) was neatly left on his ute canopy after bouncing off his windscreen with almost all of the glass still stuck to the film.

  32. Well it takes longer to heat the car up with ceramic tint. Throwing a blanket over the windows makes a huge difference in really hot days when the sun is at the right angle. So a cold car simply takes longer to heat up to be a hot car. Some cars the roof comes off its fine when you move but the heat you feel at a light is burtal with no ac

  33. I 'hit them up on their website' spoke to his business partners once and never heard back from them. Wouldn't you know, I bought a car this afternoon and actually upgraded from the model I was wanting to originally buy.

  34. Hay it helps to hide stuff and keeps people from seeing your crap , and it does help protect your seats from cracking and disentagrating.

  35. When I bought my Toyota brand new.. wanted the windows tinted.. but did the sides and back it's not very dark but never had a problem

  36. To me it depends the car ..
    Example: i tinted my 80 pinto
    But ide never tint my mercedes.
    I like the natural classy look for the merc.
    Thats just my taste tho.

  37. One advantage of tint is security. A thief wanting to break in to your car by smashing the window will find it very difficult breaking the glass sufficiently to gain entry. The glass will probably be damaged, but the tint will hold the pieces together.

  38. Hi John. Thanks for the comedy and great automotive advice.
    1 issue with the claim about Heat: When people colloquially mention heat they often don't mean total heat of a system and they mean the heat they perceive. In this case they also don't mean ambient heat but heat due to direct sunlight.
    Let's say you leave your garage for a half hour trip at 4 pm on the summer. If you have a quality tint on your windows you shall perceive tremendously less heat as you drive around. (That is the primary reason I have tint followed by privacy, brightness mitigation and finally UV.)
    Just saying.

  39. Man I just want the information but this video makes it so hard to watch. You talk so much rubbish and beating around the bush.

  40. on coaches the tint is basically unroadworthy because the emergency exit glass has to shatter,there is a material which does conform but no one knows how to find it

  41. The interlayer on laminated glass usually is PVB not polycarbonate.
    And there are other reasons to tint windows — to reduce heat gain (main reason), for privacy (which may be important in south Africa where car jacking is common, to conceal that you are driving alone), and to improve resistance to glass dust / particles in an impact.
    The heat rejection comments you make are specious. To be fair to the side and rear window heat gain you need to block heat through the windscreen with an external screen reflector. I have tinted the cars I've owned for years and (with the windscreen covered) the car is warm when i return to it on a hot day rather than too hot to touch everywhere.
    Check your facts by getting actual data. I have.

  42. I would had as No 1 that as in my Ford Ranger the factory tint added to the tint on the aeroklas canopy act like a mirror & in some light conditions I am not able to see anything behind me in the rear view mirror; instead what i see is what is in front of me. I informed Ford & aeroklas of this design fault with a so what reply. some time in the future this will cause a accident where a person will get killed. Easly done look in rear mirror see the reflection of what is in front & not the motor bike about to over take you & you pull out also to overtake forcing the motor bike off the road.

    Utes should not have 3 layers of tint to see through to the rear.

  43. Just get on with it. Too much padding. No one wants to listen to boring ad libs. First and last time on your channel.

  44. You've actually missed a few key facts around the physics on this one. The short version is: window tint does in fact make your car cooler.

    The window tint absorbs a significant amount of energy from the incoming sunlight, in varying amounts of visible and non visible light, depending on the product; this is mentioned in the video. There is no free lunch, so the energy you didn't want in the car didn't vanish, it is instead absorbed by the window, which it dissipates as heat to both the inside and outside of the vehicle. When there isn't tint on the window, the energy is instead absorbed by the materials inside your vehicle, where they dissipate heat into the cabin.

    The net result of a quality tint means your vehicle is slightly cooler when sitting idly in the sun, and much easier to cool (and keep cool) with your air conditioning. It certainly wont make your vehicle magically cold sitting in the midday sun, but it works very effectively to make it cooler when you're using it.

  45. John
    This whole up to phrase is a total wank anyway.
    You buy a product and they say it will last up to three years.q
    What they are really saying is you may get up to three years but then again it may only last one year
    What is needed is a gaurantee that it will last three years?
    Why is it that products kill 99% of all known germs or 99% fat free.
    Is 99 a magic number.????
    Actually its legal BS for Lawyers working on Company risk management.
    Whats black and brown and looks good on a lawyer???????
    Answer. A pack of dobermans.

    Also good for Politician, car salesmen, real estate sales and Mormons.

  46. I'm not sure when ceramic tinting was developed but I didn't hear you speak of it here. I'm interested in hearing your thoughts.

  47. some comments bring up a good point. why did you not bring up ceramic tints. i see this was published 2017 ceramic has been around for a while before this video came out. why no mention of it. from what i get from wikipedia cermaic is far better at dispersing heat.

  48. I got my car tinted on, that was years back, and if I have another tinting questions I would not hesitate to go back there and just ask them. I highly recommend them 😉

  49. Tints do help cut down on sun damage, but I really hate trying to see around or through huge SUVs with blacked out windows when I am riding my motorcycle.

  50. Another important bit of imformation about tint. If you pay retail…Suck shit, you're getting ripped 🤣


  52. There's alot of misinformation here. While it's true a tinted car left in the sun will still ultimately reach a maximum temperature, it will stay cool longer when initially parked. So if you're running errands and stop for a 10-15 min, the interior temp will be lower when you return than the same car without tint. Also while driving the A/C will be under less stress and operate more efficiently because as the film absorbs heat, rather than allowing the IR to heat the interior components and in turn radiate heat, the wind from driving cools the windows, thus keeping the interior cooler. Also the film greatly reduces glare which makes driving during a sunny day much more bareable. And as far as "up to 99%", typically I see that in the literature when describing a series of film that has different shades, or VLT, within that series. So if you have 5%,15%,35%,50% films all with the XYZ ceramic series film then the range may be from 80-99% therefore the " up to 99%" would be correct. I don't use 3M, I use Llumar, all of our films are 99% UVA and UVB regardless of the shade.

  53. I have a quad cab ram… rear doors are factory tinted.. they ate pretty dark.. I had the front windows done last year… made a huge difference in the summer.. does make it cooler… was 30$ per window.. to me it was worth it.. made a difference for the good.. I didnt have stealership do it.. a guy in town does it.. did a great job

  54. You were spot on until you said tint wont keep your car cool. A better way to say it is that tint will keep your car from getting as hot. Even with the best ceramic film your car will still get somewhat hot because they are not only made of glass but metals, plastics, and other materials that absorb and radiate heat into the vehicle. And a lack of air movement inside the vehicle adds to that. A premium ceramic film can help to keep the part of that heat that would normally radiate through the glass to a minimum keeping your car much cooler than not having any film installed at all. Not only that but the interior surfaces of the car will not be nearly as hot so your AC system will only take about 5 minutes to cool the car down vs about 30min. IR or infrared heat will cause heat to radiate through the glass and a high end ceramic film can block as much as 98% of that heat. Yes I said as much as…that's because that measurement varies a bit depending on what shade of film you are using. With my top end ceramic film, Xpel XR Plus, (yes I own a tint shop) it ranges from 92-98% IR heat rejection depending on how dark the film is. That is why film manufacturers say "up to" for certain measurements.

  55. 11:40 Heat come through roof and not windows? You spin more bullshit than the car manufactures, have you tried touching the windows on a car after its been out on a hot day for a few hours? Feel any heat?

  56. Yeah tint definitely makes a difference to heat, just maybe not at the legal limit. I had a "show car" with 10% on the windows and 35% on the windscreen and it was always supper chilly inside.

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