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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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  1.  
    I am converting an old cow shed for residential use and must install a radon barrier with sump and outlet. It makes sense for ease of groundwork to run this outlet alongside (one of) the air inlets for a wood burner. Hence they will appear on the outer wall of the building next to each other, except insofar as I deliberately create a gap between them. Aesthetically it would be good to have at least a small (200mm, say, centre to centre) gap between them, but are there any building regulations which cover this question?

    In any case, I think it very unlikely that any radon which is drawn up the air intake poses any risk to health as it will be emitted from the building in due course (for a second time!) through the chimney.
    • CommentAuthorgyrogear
    • CommentTimeJun 26th 2019
     
    perhaps this might help...

    https://www.ukradon.org/information/buildingregs

    gg
    •  
      CommentAuthordjh
    • CommentTimeJun 26th 2019
     
    https://www.ukradon.org/cms/assets/gfx/content/resource_2722cs33267e5dc5.pdf

    There's nothing definitive about building regs that I can see. There are statements like away from doors, windows and ventilation grilles, but no indication of distances or legal requirements. The general thrust seems to be to design the system so that there's no risk even if the duct has leaks, so making your stove pipework effectively part of this circuit sounds like a bad idea. It may be better to construct a separate channel for the radon duct, even if that means slightly more groundworks.
    • CommentAuthorMike1
    • CommentTimeJun 28th 2019 edited
     
    Posted By: johnericsuttonI think it very unlikely that any radon which is drawn up the air intake poses any risk to health as it will be emitted from the building in due course (for a second time!) through the chimney.

    The idea of the Radon barrier is to prevent the radon entering the building - so you'd be drawing it in for the first time, not the second. Radon has a half live of 3.8 days, so although it decays rapidly, it is more likely to do so in your house, where it decays though radioactive polonium and bismuth to lead.

    I'd definitely want the air intake well away from the radon duct - as in several meters away and downwind. Though I'd not choose a wood burner due to the various downsides discussed elsewhere on this forum.
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