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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.

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    Looking to replace the top 4 single glazed vents with solid units.

    Should I upgrade these to 28mm units and just foam them in? Or i sit pointless given the rest of the window construction?

    Failing that, anyone have a rough idea on cost to renew the whole shop front?

    Any thoughts? Or just whack in 4mm single glazing?
    • CommentAuthortony
    • CommentTimeJul 7th 2016
    4mm toughened or laminated

    Not sure of cost of new shop front
    Yeah, I'll just go with 4mm toughened, if the business succeeds then I can give it a revamp front end. If it ain't broke and all that, keep it simple
    • CommentAuthorgyrogear
    • CommentTimeJul 14th 2016
    Might be worth looking around on here - I can quite see your premises with some georgian stuff, actually !


    Four years on, shop doing really well but the windows circa 50 year sold not so well.

    So we're biting the bullet and renewing teh shop front.

    Do we go aluminium, PVC, timber again?

    Single glazed, double glazed or even triple??
    In part I would think it will depend upon the size of the glass and what the elf-an-safety demand. Also is Planning involved? Any adjacent shops that it would better to match?
    However all things being equal I would probably go for PVC double glazed - with the decision tempered by the costs (based on quotes or price guidelines) of the various types
    • CommentTimeMay 4th 2020
    I presume it isn't listed or in a conservation area since that hasn't been mentioned. In which case I think Building Regs Part L2B applies. I'm not familiar with it. Do the regs on thermal elements apply to windows or not? They are called out specifically in Table 6 I see, which seems to rule out single-glazed windows.
    As another thought - I suspect that the glass will be required to be either toughened or laminated, however a cost saving might be possible if you can get away with only the outer pane of glass strengthened but this could depend on size amongst other factors
    No conservation area or listed, I'll check with the Council if I can get hold of them....
    • CommentAuthorrevor
    • CommentTimeMay 5th 2020
    I would not go with pvc some nutter will at some point stub their cigarette buts out on it and cause unsightly marks. Aluminium gets scratched and can be expensive to repair to match up to powder coating which a factory made window would be made of. Wood is a good material it is easily cared for and repaired find a local joiner who makes such stuff. Sapele would be good choice. No need for triple glazing but check regs for glass type and thickness which will be influenced by pane size a decent joiner should know anyway.
    • CommentTimeMay 5th 2020
    Posted By: Peter_in_Hungaryif you can get away with only the outer pane of glass strengthened

    I don't believe you can. The regs are to prevent injury from splintered glass and a toughened outer sheet doesn't stop the inner sheet splintering and injuring people within the building if somebody or something falls on it. I'd expect commercial 3rd-party liability insurance would also want things tickety-boo.
    Out for prices at two local joiners, just waiting on a third.
    • CommentAuthorwookey
    • CommentTimeMay 7th 2020
    This is a great big shop window right? So why are people suggesting that there is no need for 3G? All new windows should be 3G, especially big ones. It really doesn't cost much extra. 1.4 x 2m 3G, 48mm unit, softcoat, toughened, warm-edge spacers and argon is £465 delivered https://glasstops.co.uk/order-online/triple-glazed-unit-rectangle.html Looks like these
    2G equivalent is £362 delivered

    That site lets you specify 4mm up to 1.45 x 2.5m, but I think you really want 6 at that size?. Don't know if that's big enough. Other sites allow 6mm, and planitherm and bigger windows.

    People here should be up for spending £100 on windows with decent U-values. (30% better than 2G)
    COVID seems to have halted any local companies getting back to me with prices and fed up with chasing them.

    Does anyone have any links or suggestions for either aluminium windows or national joiners?

    Shop is in South Wales
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