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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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Housing - New Build: U Value Selection for Walls and Roof

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    • CommentAuthorEd Davies
    • CommentTimeSep 9th 2014
     
    If you think the outer PIR is vapour impermeable, what's the point of the breather membrane? Might as well just use polythene which is cheaper.

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