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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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Energy Assessment: decrement delay airgap

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    • CommentAuthorSteffen595
    • CommentTimeFeb 13th 2009
     
    hello,

    read the thread regarding thermal decrement, but I am still a bit lost. Am trying to model several roof types just corrugated iron, or iron plus reflective foil and air gap in between and the software comes up with crazy values as if the air gap creates a massive decrement. I can imagine it gets you some delay (the gap) because it a bad conductor, but it won't change the decrement factor from 1 to 0.06. (that is the results of Ecotect) .
    Reg. corrugated iron roof and no insulation: am in Australia.

    Cheers,

    Steffen

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