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Old 01-07-2010, 09:01 AM
 
Location: West 'Burbs of Chicago
1,214 posts, read 3,573,986 times
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I've lived in the midwest my entire life. I've lived in an OLD house, with some original windows for many years [house built in the late 20's ]

Our current home was built in 2001. A few yrs back, it was really cold [i'd have to look that up... but maybe 5 yrs ago] the big picture window in the living room cracked.. it slowly spread throughout the winter before we had it replaced. I did notice there are other homes that had replacements the same day.

Last winter, it was cold again, and one of the windows in the MBR cracked. That was last Feb. We has it replaced over the summer, and about a month ago the same one cracked again. This time i heard it. When i noticed it in the morning, I'm assuming that it was poor installation... it's like you can see almost a pinhole where it 'popped' and the whole window has a crack thru it.

DH and I were talking about this 'window cracking' thing... and for the life of us, we can't figure out why, all of a sudden, we are having windows breaking due to the weather.

Is this common, do we just have cheap windows??

Now i walk about the house checking all the widows for breakage... this just is not normal.
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Old 01-07-2010, 09:29 AM
 
Location: Somewhere in northern Alabama
11,699 posts, read 26,972,989 times
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"I did notice there are other homes that had replacements the same day."
"it's like you can see almost a pinhole where it 'popped' "

Any possibility you have some numb-nut pinging the windows with pebbles or an air rifle? I'd be especially suspicious of this if it happened when school was out on a snow day.
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Old 01-07-2010, 09:58 AM
 
Location: West 'Burbs of Chicago
1,214 posts, read 3,573,986 times
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no.. it was definitely weather related. The first windows that cracked did not have any 'ping' marks.

the window that is in the MBR, at the area it cracked last year, i can't see how it could have been 'hit' with anything, just by where it's located, and when it broken again last month.. i heard it go. it was a "pop". it was also about 10.30pm.
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Old 01-07-2010, 11:03 AM
 
Location: Somewhere in northern Alabama
11,699 posts, read 26,972,989 times
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OK. Had to rule out the obvious.

Is there warping of the frame? A twist could cause a break.
How is the glass mounted? Old windows had glazier points and putty. If it is newer, there is likely a rubberlike seal around it. Is there some flexibility or is it rock hard at cold temps?

Glass is annealed to minimize stress fracturing. If everything else checks out ok, I'd think that improper annealing might be the culprit. That goes way back to the glassmaker.
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Old 01-07-2010, 11:16 AM
 
Location: I think my user name clarifies that.
8,293 posts, read 14,351,446 times
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Sounds like a flaw that several homes in your neighborhood are suffering. I assume they were all built by the same builder, and at approximately the same time.

This leads me to believe that there's either a structural flaw in that "lot" of windows the contractor bought, or the contractors somehow screwed up the installation.

It might be worth investigating.
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Old 01-07-2010, 12:36 PM
 
Location: West 'Burbs of Chicago
1,214 posts, read 3,573,986 times
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our home was the first one built in `01
the one across the street also had a cracked one back in 2007 [I looked it up] their home was built about 4 yrs after mine.

Quote:
there is likely a rubberlike seal around it
I checked, and i dont feel anything, but i do recall DH saying that the guy used a silicone like substance to put in the new pane. I wasn't there - so i didnt see how it was done...and he's not home, so i can't ask him.

I just find it so odd that we have cracking glass in cold weather. I just think shotty construction and "things just aren't made like they used to be."

when we were in teh building process, i asked the builder if i could have 'upgraded' windows and they said that "this is all we have to offer, no upgrades"
which i thought was a bunch of crap... and her reply was... "Well, after you've moved in, have all the windows replaced." which was the dumbest thing i'd ever heard... they said the same thing when we asked for a concrete drive. Oh well.
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Old 01-07-2010, 07:05 PM
 
Location: A little suburb of Houston
3,700 posts, read 11,317,865 times
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Glass is a liquid. As temperatures get colder, it becomes more solid and expands. Either one of these can be a problem if there was faulty installation or construction of the window itself.
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Old 01-07-2010, 07:14 PM
 
Location: West 'Burbs of Chicago
1,214 posts, read 3,573,986 times
Reputation: 399
thanks... that does make sense.
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Old 01-07-2010, 11:38 PM
 
584 posts, read 1,341,253 times
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Quote:
Originally Posted by Poltracker View Post
Glass is a liquid. As temperatures get colder, it becomes more solid and expands. Either one of these can be a problem if there was faulty installation or construction of the window itself.
Almost. Heat leads to expansion. As temperatures get colder, glass will become more solid and contract. Colder temperatures also decrease flexibility, which in at least with other materials, increases the risk of cracking or breaking.
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