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Essential for Newbies: Cracked window due to overheating

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  1.  
    • CommentAuthorstephendv
    • CommentTimeJan 25th 2012
     
    I needed a temporary solution to keeping direct sunlight out of a south facing window.... so I taped a black garbage bag against the glass (4/16/4 argon filled, low-e). Within 20 minutes there was a loud crack and the inside pane had a 40cm crack in it due to the heat build up between the plastic and glass :cry:

    Is this normal behaviour for glass windows, and was I just being a numpty - or could I argue a manufacturing defect with the glass provider?
    • CommentAuthorJoiner
    • CommentTimeJan 25th 2012
     
    :smile: It isn't normal for a d/g unit to have a piece of black plastic taped over it, so hardly surprising that its behaviour wasn't normal.

    That said, it's always worth a punt to get the unit exchanged, depends on how long it's been in there. They may, however, play the standard card and counter-claim that the breakdown was caused by faulty fitting, effectively putting the onus on you to prove otherwise.

    Like I said, worth a punt. Nothing to lose. Just don't tell them what you did! :wink:
    • CommentAuthorJoiner
    • CommentTimeJan 25th 2012
     
    Oh, and ask the mods to move this to a more relevant category? :wink:
    • CommentAuthorstephendv
    • CommentTimeJan 25th 2012 edited
     
    Posted By: Joinerhttp:///forum114/extensions/Vanillacons/smilies/standard/smile.gif" alt=":smile:" title=":smile:" >It isn't normal for a d/g unit to have a piece of black plastic taped over it, so hardly surprising that its behaviour wasn't normal.


    The punk-squat-chiq aesthetic will be all the rage this year :wink:
    Unfortunately, I've already told them exactly what I did and they (the window company) said they were going to contact the glass company...
    • CommentAuthorJoiner
    • CommentTimeJan 25th 2012
     
    Like it! :bigsmile:

    That's a pity. Watch that space then.:cool:
    • CommentAuthorskyewright
    • CommentTimeJan 25th 2012 edited
     
    FWIW until a couple of days ago I was running a little solar thermal related experiment which involved a "black body" temp sensor[1] placed against a SSE facing d/g window, as a crude simulation of what might be happening inside an ET in similar conditions.

    In good morning sunshine that was seeing over 70C (the sensor can't read higher than that). The experiment was terminated when it dawned on me that it might not be a good idea to have something that hot against a d/g unit...

    [1] It's a black painted aluminium disk, well insulated behind and to the sides, with a temp sensor in the middle. I normally use it for night time cloud / clear sky detection.

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