Discussion
Energy Performance
fenestration costs and benefits |
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Andrew 27 Mar 12 at 10:56 |
With regulations getting tougher and energy costs rising there also improvements in glazing systems - but at what cost? Glass is a poor insulator and it's not cheap. I'm developing an internal shutter system filled with urethane foam which snaps shut to created a thermal barrier between the fenestration and the occupied space. thereby equally good for heat loss and unhelpful solar gain. As it is light and rigid it can also be suspended below an atrium or roof-lights. There are millions of buildings from the 90's and earlier which have high costs and poor fenestration. I'm also working on the equation : simple glazing + effective shutter = less initial cost and greater energy savings. If anyone is interested on this issue, I would really like to hear from you - I have a lot more information to share and am always keen to learn more.
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GR Taylor 06 Jun 12 at 14:42 |
Have you read about Aerogel in the June 2012 Journal? I don't know any more than I read there, but heat conservation and daylight wise, this could in theory replace all fenestration? I guess the greatest drawback of same is the lack of vision! Your invention would also cut out (or at least cut down) daylight when deployed for heat conservation. If you want to retain internal heat in the daytime you would have to put on the artificial lighting. Even in the winter when it's dark outside and the lights are on anyway, people might still want to see out. And when your system cuts down unwanted solar heat gain you might still have occupants who want to see out.
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