Join Date: Sep 2010
Location: Adelaide, South Australia
Drives: Kia Sportage Platinum diesel and Rio 3 door SLS
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My understanding (or interpretation) of Solar Glass would be that it has been treated to exclude a high(er) percentage of UV - the factor that causes sunburn, premature ageing and fading of fabrics/upholstery, etc.
The "tinted" windows many modern cars come standard with these days is usually merely colored glass which may help reduce the sun glare factor but does not significantly reduce the UV penetration into the interior. Thereby the sun is still hot against the skin with the windows up.
I have just had UV film put on my Sportage - even the "tinted" rear windows - and it has made a significant difference. Easy way to distinguish solar glass is to drive with the window down on a hot sunny day and feel the effect of the sun on your skin, then put up the window. No significant reduction in the "burning" effect would indicate that the windows have a colored tint factor only.
Some car brands are now coming out with "solar" windscreens. There is a UV and anti-glare factor built into the front glass. This significant reduces heat entering through the front window. However it also can have a signal reducing effect on sat-nav and audio systems with an internal aerial, or the aerial built into the glass. An added external aerial is the easiest solution to this problem.
As a side note: DON'T apply any tint film (UV or other) to the sunroof glass as this is tempered glass and is designed to expand and contract according to heat upon it. Film will bubble, blister and crack over time, rendering it ugly and useless.
Old enough to know better . . . . too old to care!
Last edited by imay; 03-27-2011 at 05:42 PM.