I Need An Education On Window Tint

[swathdiver]

Hey Fellas,

So I made an appointment and my daughter took Sonoma Rose to get her windows tinted. I told the guy over the phone that I wanted it the same as my Yukon that they did, the maximum amount allowed by law. The paperwork for the Yukon says 30% up front and 20% in the rear, the regular ceramic. Well, Jaime comes home and it is not nearly as dark as mine and the paperwork says 30% for the front and 50% for the rear. I tried calling but the phone just rang, figured he was working on a car and hung up.

The windows from the factory are tinted and says 70% transparency for the front windows, 25% transparency for the rear side windows and 22% transparency for the back window.

For the front side windows, Florida law allows for, "a total solar reflectance of visible light of not more than 25 percent as measured on the nonfilm side and a light transmittance of at least 28 percent in the visible light range".

For the windows behind the driver, Florida law allows for, "a total solar reflectance of visible light of not more than 35 percent as measured on the nonfilm side and a light transmittance of at least 6 percent in the visible light range may be used on multipurpose passenger vehicles".

Found this little nugget in the statutes, "Every percentage measurement required by ss. 316.2951-316.2954 is subject to a tolerance of plus or minus 3 percent".

So, if the goal is get to 28% and the windows are already 70% from the factory, wouldn't they have applied 42% film on the front two windows?

And if that is right, wouldn't they have applied 19% and 16% film on the rears to get to 6%?

The photo of the red truck is before tinting. Let me run outside and take an after photo... Ok, third one is after with tint. What do you think?

 

[Trey Hardy]

Limo tint or nothing taking the Tahoe and wife’s Chrysler to get the windshield wrapped in 35% with a doubled up 5% banner and either 20% or 35% in the front windows with 5% over 5% over factory tint in the rear

 

[B-train]

I think the tint looks just right.

I had a new silverado that didn't have factory tint (crew cab). I was told to expense the window tint, so I had all 4 done. I never thought about tinting the driver window being from WI, but man was it nice. Looked similar to your truck with only 20%. Money well spent.......theirs anyway LOL

 

[iamdub]

So, if the goal is get to 28% and the windows are already 70% from the factory, wouldn't they have applied 42% film on the front two windows?

I always thought that a tint's VLT (Visible Light Transmission) was rated with it on a transparent glass. So, if the glass already has a 70% VLT, then a tint would transmit it's rated percentage of that 70%. So, a 20% tint on a 70% tinted window would net a 14% VLT, if I mathed correctly.

 

[swathdiver]

I always thought that a tint's VLT (Visible Light Transmission) was rated with it on a transparent glass. So, if the glass already has a 70% VLT, then a tint would transmit it's rated percentage of that 70%. So, a 20% tint on a 70% tinted window would net a 14% VLT, if I mathed correctly.

Can you say that again at kindergarten level to see if I get it? LOL

 

[wjburken]

Can you say that again at kindergarten level to see if I get it? LOL

I think what he’s saying is, if the stock window passes 70% of light, and then you put a 20% film on it, the film will pass 20% of the 70% the window passes, or 14%.

 

[swathdiver]

I think what he’s saying is, if the stock window passes 70% of light, and then you put a 20% film on it, the film will pass 20% of the 70% the window passes, or 14%.

Come on Wade, that's 3rd grade level! 70 plus 20 is 90, how do you guys get to 14? LOL I'm waiting for that "duh" moment!

 

[Fubar0715]

Forgot to carry the one or my publicly educated dumb ass just got no good math skills....Probably the later to be fair!

 

[iamdub]

. . . . .

Here's some decimal points. Disperse them as you see fit!

Oh- in case this is algebra, throw a few of these around in the mix: X Y I A E

 

[Fubar0715]

. . . . .

Here's some decimal points. Disperse them as you see fit!

Oh- in case this is algebra, throw a few of these around in the mix: X Y I A E

That was the problem - missing a few letters and a decimal point or two...Thanks for setting me straight!

 

[wjburken]

Come on Wade, that's 3rd grade level! 70 plus 20 is 90, how do you guys get to 14? LOL I'm waiting for that "duh" moment!

 

[iamdub]

That was the problem - missing a few letters and a decimal point or two...Thanks for setting me straight!

We got this. I don't know about you, but I've helped my freshman with her Common Core math homework. They're not looking for correct answers. You just need to throw enough random BS in there to convey positive vibes and good intentions and they're obligated to mark every answer "correct".

 

[wjburken]

We got this. I don't know about you, but I've helped my freshman with her Common Core math homework. They're not looking for correct answers. You just need to throw enough random BS in there to convey positive vibes and good intentions and they're obligated to mark every answer "correct".

Just need to make sure the answer is a “friendly” number.

 

[iamdub]

Just need to make sure the answer is a “friendly” number.

Friendly, yes. But, how offensive of you to call it a number! It/they is/are integer(s)- (a) thing(s) complete in itself/themselves. So close-minded, you are!

 

[Fubar0715]

We got this. I don't know about you, but I've helped my freshman with her Common Core math homework. They're not looking for correct answers. You just need to throw enough random BS in there to convey positive vibes and good intentions and they're obligated to mark every answer "correct".

Oh good, more participation trophies - just what we need!

 

[swathdiver]

Oh good, more participation trophies - just what we need!

Yeah, two pages in and I still don't know how this tint stuff works! LOL

 

[wjburken]

Yeah, two pages in and I still don't know how this tint stuff works! LOL

It blocks light.

 

[swathdiver]

I did some more googling with better search terms and came across a math formula that explains how it is calculated.

Original x Aftermarket / 100 = Combined Percentage

So, we're not lawful up front but one can easily see inside and the rears are well within limits. The tint man did write back with an explanation that stated I would never have any issues with the law with the front tint. We shall see about that!

Julia was pulled over a couple of weeks ago in the white Sierra by a State Trooper whose premise for stopping her at night was that her tint was too dark. Yeah, that'll (probable cause) fly in court. He had trouble climbing up onto the running boards with the 35s and 6.5" lift. He was wrong about the rear tint and right about the front. He gave her a warning.

Like many of you, she's not going to do a thing and stated she would just pay the ticket should she get one.

Many thanks to all those who tried to 'splain it to me and failed! It's not you, it's me; been a little slower than normal lately.

Thus endeth the lesson!

 

[iamdub]

I did some more googling with better search terms and came across a math formula that explains how it is calculated.

Original x Aftermarket / 100 = Combined Percentage

View attachment 382841

So, we're not lawful up front but one can easily see inside and the rears are well within limits. The tint man did write back with an explanation that stated I would never have any issues with the law with the front tint. We shall see about that!

Julia was pulled over a couple of weeks ago in the white Sierra by a State Trooper whose premise for stopping her at night was that her tint was too dark. Yeah, that'll (probable cause) fly in court. He had trouble climbing up onto the running boards with the 35s and 6.5" lift. He was wrong about the rear tint and right about the front. He gave her a warning.

Like many of you, she's not going to do a thing and stated she would just pay the ticket should she get one.

Many thanks to all those who tried to 'splain it to me and failed! It's not you, it's me; been a little slower than normal lately.

Thus endeth the lesson!

This chart says in simpler terms (but not as simple as @wjburken put it) of what I was trying to say. 21 is 30% of 70. 13 is 50% of 25 (rounded) and 11 is 50% of 22.

Tint reduces whatever light is available. If the window already has a light tint (30%), then it means it is blocking 30% of the light and you're still getting 70%. So, 70% of light is available. Adding 30% tint to that means 30% of that available 70% will be blocked. You're reducing that still-available 70% by 30%. 30% of 70 is 21, so you'll now have 21% of light available. This is 7% darker than lawful, according to that chart.

Another example: Say you start with a perfectly clear glass with 100% VLT (visible light transmission). You put 50% tint over it. You're now blocking 50% of that light, so you're passing (can see) the remaining 50%.

Now, put another layer of 50% on top of that. No, it's not 50% + 50% = 100% (completely opaque glass). You're reducing that available 50% of light by half, meaning "half of half". So, you're now at 25% available light (VLT).

 

[mountie]

This chart says in simpler terms (but not as simple as @wjburken put it) of what I was trying to say. 21 is 30% of 70. 13 is 50% of 25 (rounded) and 11 is 50% of 22.

Tint reduces whatever light is available. If the window already has a light tint (30%), then it means it is blocking 30% of the light and you're still getting 70%. So, 70% of light is available. Adding 30% tint to that means 30% of that available 70% will be blocked. You're reducing that still-available 70% by 30%. 30% of 70 is 21, so you'll now have 21% of light available. This is 7% darker than lawful, according to that chart.

Another example: Say you start with a perfectly clear glass with 100% VLT (visible light transmission). You put 50% tint over it. You're now blocking 50% of that light, so you're passing (can see) the remaining 50%.

Now, put another layer of 50% on top of that. No, it's not 50% + 50% = 100% (completely opaque glass). You're reducing that available 50% of light by half, meaning "half of half". So, you're now at 25% available light (VLT).

I'm totally lost......

Some time ago I was talking to a Cop, as he was sitting in his 'company car' about his tint......
He told me he had to lower the passenger window at night to see when he was backing up.

(( If I wanted tint, I ask the local Sheriff's office who tints their cars.... That's the place to use.