Window tinting and sun protection - does darkening your windows make you safe from UV rays?
Wednesday 12 December, 2012 by Melissa
Recently I've learned there are many things one must consider when
looking for a new car - before handing over cash for that new set of
wheels. According to my "car enthusiast" boyfriend, one must look at the
make, model, fuel efficiency, cost per kilometre to drive, and, most
importantly, safety - does it have ABS brakes? Curtain airbags? How well does it protect you in a collision?
The conversations have generally gone like this:
Him: What would happen if a tree fell over in the middle of the freeway right in front of you?
Me: Huh? Why would a tree be near the freeway?
Him: I'm being serious, you need ABS brakes.
Me: But I really like this (insert car model here), look, it's so shiny.
Him: But it doesn't have any safety features!
Me: But it's so pretty.
Him: Sigh ...
While many people consider these safety features, one of the things many
of us don't consider when purchasing a car, is protection for our skin
against UV rays. At Cancer Council we get asked a lot about whether or
not people should get their windows tinted to protect from high levels
of UV radiation, which can cause skin cancer.
So, should you shell out for tinting on your windows to keep your skin
safe from UV? Opinions vary on how much protection window tinting
offers, but as a general rule, you should be wary of any car dealers
selling that car which was owned by "one little old lady" and has "100%
protection against the sun because of its window tinting."
Research shows that window tinting in cars offers some protection against UV radiation.
As the Cancer Council Australia Position statement states:
- UV radiation levels inside a car vary depending on factors such
as whether the side windows are open or closed and the orientation of
the vehicle with respect to the sun.
- They are generally much lower than outside in full sunlight,
varying from as low as 4% up to 50% of the ambient UV radiation outside
- Clear autoglass (side windows) blocks about 97% of the UVB radiation and about 37% of UVA radiation.
- Laminated windscreens block all of the UVB radiation and about 80% of the UVA radiation.
- Clear windscreen films can reduce the transmission of UVR
further so that as much as 97% of the UVA is blocked. This depends on
the quality of film used.
- Clear or tinted films can also reduce the amount of UVA and UVB
penetrating through the side glass. The amount of protection varies with
So, our recommendation is that if you're not spending a lot of time in
the car with your children every day, there's really no need to get
window tinting. However, it's a wise choice if you're spending much of
your day behind the wheel such as a sales person or a truck driver
Cancer Council also recommends:
- People - mums, dads and kids included - use sunscreen and wear protective clothing when out and about in the car when UV levels are high (3 or above) - especially if you're planning on being in the car for a long time.
- Keep your windows up to ensure the tinting is covering your exposed
skin to ensure added protection - use air conditioning if you have it
(if not see the point above).
- As per the above, tints can vary but we recommend a better quality
tint if you want to get your own. However, you should also be aware that
if you're planning to get your car windows tinted, there are tinting
levels you can't exceed.
The National Road Traffic Act requires a minimum luminous (light) transmission for certain windows as follows:
- Windscreen 75%.
- Driver and passenger front windows 70%.
- Windows behind the driver's seat (excluding internal windows) 35%.
These regulations may vary between states and territories.
If you're planning some road trips this summer (or even if you're not), remember to Slip, Slop, Slap, Seek and Slide to protect yourself from skin cancer. You can also download the free SunSmart phone app to check out skin protection times.
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