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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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General: ruralZED

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  1.  
    • CommentAuthorPeter Clark
    • CommentTimeFeb 28th 2008 edited
     
    ruralZED from Bill Dunster:

    http://www.independent.co.uk/environment/green-living/on-the-market-the-zerocarbon-home-with-an-affordable-price-787920.html

    High thermal mass

    Kit approach

    Heat recovery ventilation PASSIVE

    Wind cowl

    Has anyone seen this at the exhibition and want to share their thoughts? Or even not seen it and want to?

    I am very interested in how the wind cowls do passive heat recovery ventilation .
    • CommentAuthorStuartB
    • CommentTimeFeb 28th 2008
     
    Zero carbon, 3 beds, fully kitted out with PV and solar HW and erected in three weeks for £150k seems reasonable to me. Doesn't say what size it is but would guess at 120sqm which works out at £1,250sqm plus groundwork. I've been quoted £1500 - £2000sqm for a similar spec.
    • CommentAuthortony
    • CommentTimeFeb 28th 2008
     
    All too expensive in my opinion. It should be possible to something like that on a repeat basis a lot cheaper.
    • CommentAuthorStuartB
    • CommentTimeFeb 28th 2008
     
    What would you suggest would be a reasonable cost per sqm for zero carbon spec?
    • CommentAuthortony
    • CommentTimeFeb 28th 2008
     
    the £1250 above mentioned does not include substructure or services etc

    We need to get good at doing it relatively quickly and if we cant keep costs down it wont happen

    1500 to 2000 is far to bigger range!

    on cost should be 10% for mass produced pluss cost of solar pv if needed for one off's + 20% and for first attempts + 25 % e/o existing costs.
    • CommentAuthorjon
    • CommentTimeFeb 28th 2008
     
    Went along yesterday to have a look with a couple of others. Bill wasn't there. Sunand pointed out the terracotta tiles used between the floor joists used for solar mass. Thought that was an interesting idea. No idea how the wind cowls work.
  7.  
    For wind cowls, Jon, try this:-

    http://www.zedfactory.com/zf_pr_windcowl.htm

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