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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.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorRex
    • CommentTimeJul 7th 2021 edited
    What ho one and all,

    I am getting organised to replace number of wooden fence panels that have been there for around 20 years a well past their sell-by date.

    I have the panels which I will be giving a coat of Ducks Back before installing.

    Having cleared away most of the earth / leaves / moss / twigs / ivy from the bottom of the fence, the current rubbish timber is of course, well rotted. So I am thinking of installing some gavel boards but con't plan to spend a great deal of money.

    Gravel boards come as pressure treated. However, I have a number of usable joists (50 x 150 x 4m) from the build that have been under cover for the last ten years. I don't know if they were pressure treated but if they get a coat of wood preservative, is there any reason that I should not use them?

    Basically, I'm wondering if joists (with wood treatment applied) is likely to be better or worse than gravel boards, which are already poor quality wood?

    Thanks and toodle pip
    • CommentAuthorMike1
    • CommentTimeJul 7th 2021
    Theoretically they'd be worse, but if they're going spare and you can't find a better use for them, I'd use them anyway.
    • CommentAuthorEd Davies
    • CommentTimeJul 7th 2021
    I recently cut up a 195x45 plank which had been lying outside, on the ground but on stone chips, for a few years (5, I think). The outside looked terrible but the inside, after the first mm or so, looked perfect. It wasn't treated other than the thin treatment they put on the outside of all such wood. My guess would be that structural timber with a coat of treatment on the outside would last pretty well so long as they're properly drained.

    • CommentAuthortony
    • CommentTimeJul 7th 2021
    Use them ๐Ÿ™‚. Good sustainable action
    Remember to make hedgehog holes!

    I'd eBay the joists, and use pressure treated timber in contact with the ground instead, something intended as decking boards or cladding boards might be better quality than stuff sold for fencing. Strong preservative is expensive.

    Edit: I was just looking at some recycled plastic decking boards that would be ideal for this.
    • CommentAuthorphiledge
    • CommentTimeJul 9th 2021
    With modern semi eco preservatives, wood will rot in time and need replacing perpetually. Maybe reclaimed plastic but reclaimed paving slabs set on edge arent going to fail and can be reused if the fence is taken down.

    On a green forum the best recomendation is plant a hedge instead of the fence๐Ÿ‘
    • CommentAuthorRex
    • CommentTime3 days ago
    Tend to agree about the hedge but with the neighbour's completely unmaintained 'garden' and our 1m roof overhang, I would need some kind of plant that grows in semi-darkness. And we want the privacy now, not in X years time.

    Fence more or less now completed using ex-build 50mm joists, painted with preservative and attempting to not have them in close contact with the earth. The old fence was around 20 years; if this lasts even 15 years with regular treatment and ensuring the neighbour's ivy does not grow though it, I will probably be an age that I don't care any longer and it can become SEP (Someone Else's Problem.)
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