Double Pane Windows

double pane windows Questions and Answers

 

double pane windows questions

 

Double Pane Windows

Hello,

Just bought a house (8-9 yrs old), It’s brick, & has a large (arched-top) window in the very Double Pane Windows front. Not including the arch it is around 8′ tall x 7′ wide (maybe a bit smaller). The double pane windows glass  is real foggy.  I have been told it has a pinhole (they didn’t say inside or out), and has allowed gas(?) to enter the double-pane (and one guy said possibly ‘stain’ the inside of the window?). My question is, is there ANY WAY to siphon the gasses/fog out, and fix the pinhole?? Or am I looking at a whole new window? If I DO need a new window, do you have any suggestions on the least expensive way to go? Is it worth it (energy-wise) to get double pane windows – like that one was? ANY advice GREATLY appreciated!!

Thank you,
Millie

 

double pane windows answer

Hi Millie,

Double pane windows consist of two pieces of glass separated by a spacer around the perimeter and made air tight usually with a butyl based sealant applied between the spacer and the glass panes. The size and shape of the spacers varies with different manufacturers and some designs do perform better than others. The space between the glass panes may contain air or, to improve thermal and acoustical properties, it may bedouble pane windows filled with argon, krypton or xenon gas. Changes in temperature, stress during transport and installation, settling of the structure, faulty manufacturing, or impacts to the glass may cause the butyl seal to fail. Once the seal fails temperature differentials between the interior and exterior panes of glass will result in condensation forming between the panes. This condensation leads to the foggy appearance typical of seal failure in double pane windows. Once this happens there is no reliable way to reverse the damage. Repairs may be effected either by replacing the entire window unit or removing the panes from the unit and having new double pane glass installed in the existing frame. Some double pane windows may have a tag with the manufacturers name and a serial number affixed to the jamb. If a serial number is available, ordering a replacement glass, sash or unit from the manufacturer is often the most economical way to proceed. If no serial number is available many glass companies specialize in fabricating replacement glass in single or double pane configurations and will often come to your home and remove the old glass and install the new. Double pane windows are substantially more energy efficient than single pane windows. On a window of the size in question replacing it with single pane glass would result in a cold spot in your home, increase energy costs and lower resale value.

Good luck with your window repairs,

Tony


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About Tony Wood

Tony is a life time resident of North Carolina with over 30 years experience in multiple facets of the industrial, commercial and residential construction industry. For the past 23 years he has owned and operated Wood's Home Maintenance Service, providing services primarily in Johnston, Wake and Sampson Counties of North Carolina. ______________ ______________________________________________________ The information contained in this Blog is opinion derived, from hands on experience of over 30 years in the construction industry and by extensive research by the author. All postulations are referenced to the geographic location in which this experience was gained.
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One Response to Double Pane Windows

  1. Millie says:

    Tony – I want to apologize for taking so long to read your EXCELLENT response. I’m still trying to move in the house and juggle everything else, and I’ve just been too busy . I can’t thank you enough for taking the time to give me a little of your informative expert advice.

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