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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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    • CommentAuthorricho106
    • CommentTimeMay 6th 2022
    Hi All

    I have been getting some quotes regarding our windows, doors and sliding doors

    The supplier has said that our 6m sliding door would have to be double glazed due to size and weight and was unsure if the gearing would take the weight.

    I just wondered if this is standard for a sliding door of this size? We are focussed on good energy efficiency/ air tightness but not passivehaus standard.
    • CommentTimeMay 6th 2022 edited
    These monsters c2003 were triple glazed. Extremely heavy. There are two of them, meeting at the round corner column. Each one has three 'bays' i.e. two sliding leaves which both stack away to a third position. Also opening image on www.tomfosterarchitecture.co.uk.
    They slide along the outside, boarded face of the external wall. They were by Hajom, now defunct, but using G-U hardware, can't find it on their current website but I remember
    could supply, and this looks like it on this webpage.
    Nowadays you can even make a pair of doorsets meet at the corner without a structural column or even a mullion, so the whole corner can disappear.
    • CommentAuthorowlman
    • CommentTimeMay 7th 2022
    Is 6 metres is the total opening width, not just one leaf? Is it 2 x 3M?
    • CommentTimeMay 7th 2022
    Posted By: richo106The supplier has said that our 6m sliding door would have to be double glazed due to size and weight and was unsure if the gearing would take the weight.
    Plus, in addition to owlman's question ... what is the frame material, what is the gearing for? Is it purely a sliding door or is it lift-and-slide or something else? What is the airtightness rating? What is the thermal performance? (Brand and model name would be an easy answer! :)
    • CommentAuthorMike1
    • CommentTimeMay 8th 2022
    https://www.sky-frame.com/en/sliding-doors/sky-frame-3/ do 2.3 m x 4 m and 'larger on request'.
    • CommentAuthorowlman
    • CommentTimeMay 8th 2022
    Large glazed openings are either top hung or bottom rolling, occasionally, some firms do a combination of both.
    The running gear for these systems is highly engineered and is very often a specific design, by a particular design and glazing firm as Mike1 indicated, so you end up having to accept their "full package deal".
    The more generic running gear obtainable from architectural hardware companies usually isn't capable of taking extreme high loads. Also, that particular companies top and/or bottom load bearing tracks are an integral part of the overall package, and need designing in at the outset. I've seen some companies advertising loads of up to 400kg.
    The specialist architectural glazing companies capable of designing and installing such systems aren't on every street corner.
    Sorry if you've already been through all this.
    • CommentTimeMay 8th 2022 edited
    Posted By: owlman6 metres is the total opening width, not just one leaf
    Wow that's something - any pic or descrip of what's intended?
    • CommentAuthorowlman
    • CommentTimeMay 8th 2022
    If it is 6M, I'm guessing he'll need it motorised and a helluva crane. :bigsmile:
    • CommentTimeMay 9th 2022
    Oh it's richo106, not yourself. Wonder if he's actually seeing these replies.
    Not motorised - the 3m doors pictured had much momentum but were quite easy to get moving. They handled the glazed leaves by hand.
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