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Replacing broken thermal pane glass in window

Replacing broken thermal pane glass in window


  #1  
Old 06-14-11, 08:11 PM
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Replacing broken thermal pane glass in window

Double hung Pella wood window approx 13 yrs old. Was installing a window ac and was screwing in a bracket on the side to hold the window down and you guessed it, the screw was too close to the glass and too long and CRACK goes the inside window pane. Trying to figure how to remove the whole glass insert to replace. The window tilts in and all I see on the outside is metal overlay over the sash. Does the entire sash have to be replaced or is there a way to take apart the sash.
 
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Old 06-16-11, 10:15 AM
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It probably depends on the model of double hung. I am trying to think... it's been absolutely forever since I worked on one. The sash obviously has aluminum cladding on the exterior side, right? Can you look on the inside perimeter and see if there is a removable moulding around the edge of the glass? If the edge of the moulding isn't visible (would be a tiny crack around the outside edge of the moulding)- you can take a sharp chisel and lightly tap on this groove, which should be about 1/2-5/8" away from the outside perimeter of the glass. Hold your chisel perpendicular to the glass, with the flat side of the chisel away from the center of the window sash. If the stop does not immediately begin to separate from the sash when you gently tap on it, it's either sealed with varnish/paint, or it's not a removable interior stop, meaning the entire sash would need to be replaced.
 
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Old 06-28-11, 07:08 PM
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You should be able to get a replacement sash from Pella. This is the easiest way to replace the glass and should not cost too much. Measure the sash size, glass size and take in some picture to your local dealer. If you can take the sash to the dealer even better. I'd go to the Pella store, not Lowes.


Reglazing can be a pain if you have never done it before. You typically need new stop if you try it.
 
 

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