This measures how much light is passing through the glass. Typically, you want a higher value, meaning more light is passing through the glass. An ideal combination is a low U-factor and Solar Heat Gain Coefficient and a high Visible Transmittance rating. In other words you want light, you just don't want the heat and damaging UV rays that come with sunlight.
Monday, February 23, 2009
Visible Transmittance Rating
This measures how much light is passing through the glass. Typically, you want a higher value, meaning more light is passing through the glass. An ideal combination is a low U-factor and Solar Heat Gain Coefficient and a high Visible Transmittance rating. In other words you want light, you just don't want the heat and damaging UV rays that come with sunlight.
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Hey there! Thank you for sharing your thoughts about science about light transmittance in windows. I am glad to stop by your site and know more about home improvement tips. Keep it up! This is a good read. You have such an interesting and informative page. I will be looking forward to visit your page again and for your other posts as well.
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Really your blog have very interesting and very valuable information. thanks for sharing.
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Can you tell, roughly, what range of the transmittance does the market offer in terms of products? Are there windows offeredwith very low transmittance?
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