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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.

Buy individually or both books together. Delivery is free!


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    • CommentAuthorMHicks
    • CommentTimeDec 5th 2016
     
    I'm on the cusp of pulling the trigger on some green oak for our trusses but thought I'd post a final note here in case anyone can think reasons against or really offer any thoughts...

    We have four trusses - three typical kingpost type, 200mm by 75mm (minimum, we'll probably go to 200x100) timbers and one sort of hybrid queenpost truss that works with a steel and has no collar to allow access to a mezzanine.

    My quandary during the last few weeks has been choice of timber and in the end it came down to oak or douglas fir. The things we've considered have been:

    Green Oak:

    pros: durable, easily worked (?), looks lovely, matches some other stuff we've acquired for the interior (oak spiral staircase to mezz., oak kitchen..

    cons: movement

    Dougas Fir:

    pros: way less movement than oak, slightly cheaper (not a major factor)

    cons: harder to work (?), sometimes a funny orange colour

    I think we'd go for the oak wholeheartedly if it wasn't for the movement issue. Our house is solid dense concrete block with 200mm of EPS EWI though so I think the movement issue is possibly moot as it will take place WITHIN the airtight and insulative envelope.

    Has anyone experience in this kind of thing or any thoughts at all? As always all replies appreciated!
    • CommentAuthorowlman
    • CommentTimeDec 5th 2016
     
    Personally, I'd got for an engineered product; e.g. Glulam, or Parallam or similar parallel strand timber. It's a dream to work and doesn't move in service. Parallam I think particularly looks very good sanded and polished. I used a glulam KP Truss and ring beam in my Conservatory and I have Oak bifolds and windows beneath. After 18 months most visitors think it all oak, the colours have equalised.
    • CommentAuthorDarylP
    • CommentTimeDec 5th 2016
     
    'Green' oak is lovely to work with (sharp chisels!) cuts like cheese....:wink:
    However, it will shrink, twist, form shakes, and other interesting things...:bigsmile: and don't expect to be able work it after a few years...
    If your design can accommodate movement, go for it!
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