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Double Glazing Identification

  • 04-11-2020 9:25am
    #1
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭


    Hopefully someone can help, I have bought a house which has double glazing, a number of extensions/upgrades etc where done over the years before I bought the house. It looks like a mix of windows in some sections of the house. Some look newer and some older. Anyway to check the quality of the Double glazing? if they potentially need replacement etc?


Comments

  • #2
    Calahonda52
    Registered Users, Registered Users 2 Posts: 13,151 ✭✭✭✭Calahonda52


    well the first test is, on a cold morning like yesterday, which ones had condensation on the outside: good quality window.
    I would be less concerned about the actual glass, what are the window seals and handles like
    are any of the panels showing condensation on inside of the panel.

    “I can’t pay my staff or mortgage with instagram likes”.



  • #3
    sydthebeat
    Subscribers Posts: 42,578 ✭✭✭✭sydthebeat


    Solutionking wrote: »
    Hopefully someone can help, I have bought a house which has double glazing, a number of extensions/upgrades etc where done over the years before I bought the house. It looks like a mix of windows in some sections of the house. Some look newer and some older. Anyway to check the quality of the Double glazing? if they potentially need replacement etc?

    See if you can find a date stamp on the window. Usually if it's a silver packer between the panes there will be somewhere with a lot of numbers on it.

    Sometimes the date stamp might be on the frame and only visibly when the openable section is opened.

    Post whatever you find here


  • #4
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭Solutionking


    One says
    Glass System B EN 1292 KM27701 06

    Any ideas? thanks


  • #5
    sydthebeat
    Subscribers Posts: 42,578 ✭✭✭✭sydthebeat


    the '06' probably refers to the year... any chance of a pic?

    if its after 2004 it most likely has a low emissivity coating (low-e) applied... so if its a 16mmm gap it probably has a u value around 2.0

    if its pre 2004, and has a 16mm gap, it probably has a u value closer to 2.8

    so depending on budge, aim to change the ones which are not identifiable as 2004 onwards first.
    for the 2004 onward windows, check for drafts, warping of frames, disintegration of seals etc... these may need to be maintained


  • #6
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭Solutionking


    sydthebeat wrote: »
    the '06' probably refers to the year... any chance of a pic?

    if its after 2004 it most likely has a low emissivity coating (low-e) applied... so if its a 16mmm gap it probably has a u value around 2.0

    if its pre 2004, and has a 16mm gap, it probably has a u value closer to 2.8

    so depending on budge, aim to change the ones which are not identifiable as 2004 onwards first.
    for the 2004 onward windows, check for drafts, warping of frames, disintegration of seals etc... these may need to be maintained

    It has quite a large gap in between the panes of glass, not sure if that means they are good/bad?


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  • #7
    sydthebeat
    Subscribers Posts: 42,578 ✭✭✭✭sydthebeat


    Solutionking wrote: »
    It has quite a large gap in between the panes of glass, not sure if that means they are good/bad?

    means its good, once the seal isnt broken, refer to second post


  • #8
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭Solutionking


    Thanks everyone for the advice

    I checked around and some of the windows seem older. I looked all over them and no marks at all on them but they have condensation every morning on them. I though this was due to lack of air travelling in house with windows closed but would this mean poor quality glass? Thanks


  • #9
    Mellor
    Registered Users, Registered Users 2 Posts: 40,232 ✭✭✭✭Mellor


    Solutionking wrote: »
    One says
    Glass System B EN 1292 KM27701 06

    Any ideas? thanks

    I imagine that actually says BS EN 1279-2
    KM is kitemark.

    British standard relating to insulated glass units. 2006 is probably a decent guess. I'd say they are decent enough units and the money could be better spent else where.


  • #10
    massy086
    Registered Users, Registered Users 2 Posts: 2,851 ✭✭✭massy086


    Is the bar between the panes silver or black


  • #11
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭Solutionking


    massy086 wrote: »
    Is the bar between the panes silver or black


    Silver on all......


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  • #12
    massy086
    Registered Users, Registered Users 2 Posts: 2,851 ✭✭✭massy086


    Solutionking wrote: »
    Silver on all......
    OK if the bars are silver on all it will only be standard float glass. All a-rated double glazing will have a black plastic spacer bar. Soft coated and hard coated.


  • #13
    Solutionking
    Closed Accounts Posts: 678 ✭✭✭Solutionking


    massy086 wrote: »
    OK if the bars are silver on all it will only be standard float glass. All a-rated double glazing will have a black plastic spacer bar. Soft coated and hard coated.

    Ok so not A-rated which I didn't think it would be. I have other jobs to do in house. But swapping the glass while leaving the frames would provide some additional support or do you need to swap the frame as well?


  • #14
    massy086
    Registered Users, Registered Users 2 Posts: 2,851 ✭✭✭massy086


    Solutionking wrote: »
    Ok so not A-rated which I didn't think it would be. I have other jobs to do in house. But swapping the glass while leaving the frames would provide some additional support or do you need to swap the frame as well?
    It would all depend on the conditions of the frames ie rubber seals hinges and if they are generally a good quality frame. This is what we look for before we advice a customer to upgrade the dg units. As tbh if the frames are no good then no point in changing the units and waisting the customers money and risking our company good name.


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