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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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    • CommentAuthortony
    • CommentTimeJul 6th 2020
    Problem on renovation project. Need to cut the top corner off a fire door at 45 degrees to accommodate a skeiling ceiling 😪

    Advice on how to get this past building regs and the inspector. Last time it was nearly impossible, this time I have a feeling that it will be impossible.
    • CommentAuthorMike1
    • CommentTimeJul 6th 2020
    It used to be possible to get fire-door 'blanks' that could be trimmed, but you'd need the manufacturer's information on what's allowed, if they're still around. Otherwise you'll need a custom made doorset.
    • CommentAuthortony
    • CommentTimeJul 6th 2020
    • CommentAuthorjms452
    • CommentTimeJul 25th 2020
    Posted By: Mike1Otherwise you'll need a custom made doorset.

    something like this:

    • CommentAuthorFred56
    • CommentTimeJul 25th 2020
    There are blanks that can be cut. I think Howdens do one. The references are not to hand but I know I have specified them for applications like compartmentalised electrical cabinets.
    • CommentAuthorSteveZ
    • CommentTimeJul 26th 2020
    Just checked the Howdens site. They offer F30 and F60 solid core doors which may be cut to suit the opening.
    • CommentTimeJul 26th 2020
    The fire test evidence looks very comprehensive.

    Jiangsu Sainty Bancom Wood Co. Ltd.
    Hongze Industrial Zone
    Hongze County
    No. 6 North 2 nd Road
    Hongze Industry Zone
    Jiangsu Province
    P.O. 223100

    "On December 1 st 2015, Chiltern International Fire Limited (trading as BM TRADA) commenced
    trading under the name Exova Warringtonfire."

    Now where have I heard that name before?

    The spec sheet states that it meets building regs Part M and has a legend that mentions Parts L & E, and both FSC & PEFC certification and UK origin, but doesn't apply them to the product.

    I wonder if there's anywhere else that offers equivalent products?
    • CommentAuthorMike1
    • CommentTimeJul 26th 2020
    Good to know that they're still around, however note that the entire doorset needs to comply, not just the door. Building regs Part B, says (the bold type is in the regs, not added by me):

    C4 Any test evidence used to verify the fire resistance rating of a doorset or shutter should be checked to ensure both of the following.
    a. It adequately demonstrates compliance.
    b. It is applicable to the complete installed assembly. Small differences in detail may significantly affect the rating.

    You therefore need to refer to the information from the manufacturer for the frame and fitting details, helpfully provided by Howdens at https://www.howdens.com/-/media/howdens/assets/clh_asset_products/clh_asset_levela_108973/ass_25308090.pdf
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