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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    • CommentAuthoradam_w
    • CommentTimeFeb 28th 2018
    I thought a few of you might be interested to read about the potential future of 'smart' window coatings;

    • CommentTimeFeb 28th 2018
    And here's a working version of the link without all the tracking:

    • CommentTimeMar 1st 2018
    V gd - but how can a 50-150nm layer of anything act as an insulator?

    "... smart windows that block heat during summer and retain heat inside when the weather cools"
    They describe the former but not the latter.
    Perhaps they mean it switches between blocking LF vs HF IR.

    "the substance turns opaque to infra-red solar radiation while remaining transparent to the human eye"
    but then
    "can be used to control the level of transparency on the window and therefore the intensity of lighting in a room"

    Lots of loose ends, considering the article isn't gutter press but in The Engineer.
    Posted By: fostertomV gd - but how can a 50-150nm layer of anything act as an insulator?

    Yeah I had trouble seeing that.
    • CommentTimeMar 1st 2018
    Posted By: fostertomPerhaps they mean it switches between blocking LF vs HF IR
    i.e. it's not insulation, but loss-radiation blocking.
    i.e. it's not insulation, but loss-radiation blocking.

    That is what I understood it to mean
    • CommentAuthortony
    • CommentTimeMar 1st 2018
    Cutting out ir radiation, stopping it passing has a good effect both with solar gain an heat losses, both shading windows and drawing curtains are examples of this.
    • CommentAuthorgoodevans
    • CommentTimeMar 2nd 2018
    And it would be really nice to be able to switch IR opacity on and off at will. One day perhaps...
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