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The BMW Range
5 Series
F10, F11, F07
Windows Tinting
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<blockquote data-quote="Raytech Tinting" data-source="post: 700416" data-attributes="member: 30236"><p><strong><span style="font-size: 15px"><span style="color: #0000FF">Education Material of IWFA (International Window Film Association)</span></span></strong></p><p></p><p><span style="font-size: 15px"><span style="color: #000000">1. Infra-Red (IR) rejection not accurate to describe solar heat control of window film product.</span></span></p><p><span style="font-size: 15px"><span style="color: #000000">2. IR only contribute 54% of Total Solar Energy Rejection.</span></span></p><p><span style="font-size: 15px"><span style="color: #000000">3. SHGC (Solar Heat Gain Coefficient is more comprehensive to solar control performance.</span></span></p><p><span style="font-size: 15px"><span style="color: #000000">4. It Is misleading to consumer if Manufacturer refer to IR rejection instead of SHGC</span>.</span></p><p></p><p><strong><span style="color: blue"><span style="font-size: 15px">Link to the articles of IWFA : <a href="http://www.cornellstorefrontsolutions.com/specs/IWFA%20-%20IR%20Ratings%20of%20Window%20Film.pdf" target="_blank">Solar Control Performance Written by AIMCAL in IWFA</a></span></span></strong></p><p></p><p><img src="http://img17.imageshack.us/img17/8081/ikqh.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Raytech Tinting, post: 700416, member: 30236"] [b][size=4][COLOR="#0000FF"]Education Material of IWFA (International Window Film Association)[/COLOR][/size][/b] [size=4][COLOR="#000000"]1. Infra-Red (IR) rejection not accurate to describe solar heat control of window film product. 2. IR only contribute 54% of Total Solar Energy Rejection. 3. SHGC (Solar Heat Gain Coefficient is more comprehensive to solar control performance. 4. It Is misleading to consumer if Manufacturer refer to IR rejection instead of SHGC[/COLOR].[/size] [b][color=blue][size=4]Link to the articles of IWFA : [url=http://www.cornellstorefrontsolutions.com/specs/IWFA%20-%20IR%20Ratings%20of%20Window%20Film.pdf]Solar Control Performance Written by AIMCAL in IWFA[/url][/size][/color][/b] [img]http://img17.imageshack.us/img17/8081/ikqh.jpg[/img] [/QUOTE]
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