Quote:
Originally Posted by logan5
Can somebody explain this? I thought the point of tinted glass was to reduce the amount of solar heat transmitted into the building, which would save energy used on AC (which are energy hogs).
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Tinted glass does help reduce heat gain in the summers, but it also has the opposite effect in the winters of reducing any solar gain, ramping up the heating bill. Modern low-e glass is also much more effective at insulating than in the 80s and 90s when you saw a lot of tinted glass, so you can achieve similar insulation performance (R values) without tinting. Which brings us to the reason you don't see tinting any more, which is light. Tinting increases the amount of time internal lighting needs to be run and the intensity it needs to be speced at, so since we can achieve similar R values and better light transference with untinted glass, LEED is structured to award projects that use it.