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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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    • CommentAuthormrochester
    • CommentTimeApr 23rd 2017
    I'm wanting to build a big internal wall (9.5m wide x 7.5m high / 70m2), it needs to be made of brick to match the rest of the walls (all painted exposed brick), being painted the bricks can be made of anything as long as they're brick sized.
    The problem is that the wall is on the first floor and is being built off a concrete floor, fortunately theres a 45cm deep cast iron girder supporting the floor directly below where the wall will be, although I'm still wary of the weight of that many bricks!
    Does anyone know of a lighter weight brick that can be used structurally? (theres going to be a mezzanine floor thats partly supported by the wall in question). Sorry I appreciate this is a question for a paid structural engineer - but just wanting to know if its worth pursuing. Cheers
    • CommentAuthormrochester
    • CommentTimeApr 23rd 2017
    Would a Thermalite brick be strong enough to support a mezzanine floor?
    • CommentAuthorgyrogear
    • CommentTimeApr 23rd 2017 edited
    How about a plasterboard partition wall, faced with brick slips ?
    With integral studs to take the weight of the mezzanine...

    • CommentAuthorgoodevans
    • CommentTimeApr 24th 2017
    That's a high wall, and its supporting a new floor, so its a high load bearing wall - with no intermediate floors giving lateral support. I suspect it needs to be of the order of 500mm thick (or have several buttresses/piers if brick) to prevent buckling. It's not a thermalite brick or plasterboard wall solution.

    The chances are that the girder size was selected to be just sufficient for the job it has to do at the moment (is it also spanning 9.5m or are there intermediate supports?) - adding another floor and a 7.5m high thick wall on top will mean that the Girder below will need significant extra help to get that extra load down to the foundations.
    • CommentTimeApr 24th 2017
    It's definitely a question for an SE as you say. If the girder is cast iron that will probably need surveying in detail before any extra weight is added. Brick slips or brick panels on a steel frame might be one way forward.
    • CommentTimeApr 24th 2017
    Live load (from the mezzanine), stability etc are usually far more of a determinant than dead weight, so lightweighting it may make little difference.
    • CommentTimeApr 24th 2017
    That's why I suggested the possibility of a steel frame Tom. But it's all idle chatter until an SE has had a look.
    • CommentAuthormrochester
    • CommentTimeApr 24th 2017
    thats much appreciated, thanks everyone
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