DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Walls and Ceilings > Why is my drywall ceiling cracking away from walls?




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Old 06-27-2014, 11:57 AM  
Logcabin
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Default Why is my drywall ceiling cracking away from walls?

We have had this repaired four times by original contractor. This happens on three of the four walls and happens in two rooms that adjoin each other. The addition to our home was built in what will be two years in October.



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Old 06-27-2014, 12:23 PM  
nealtw
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Welcome to the site.
Was your addition built with trusses for the roof or hand framed rafters?
Are all the walls affected interior?
Are these walls running in the same diection as the trusses or ceiling joists?



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Old 06-27-2014, 12:36 PM  
Logcabin
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Hello...trusses were used.
The walls most affected are the interior, however, the same thing happened to a lesser degree on exterior wall as well.
And no, they are not running in the same direction as the trusses.
This was last spackled in February and each day it gets progressively worse...and damages are happening faster this past month...

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Old 06-27-2014, 01:13 PM  
nealtw
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A combination of factors at play, because trusses are designed as a big triangle, loads on one area effect all other parts of the truss, often with a snow load the center of the truss will move upward away from the interior walls. It's anybodies guess what happens with contraction and expantion do the temperature changes.
Drywall hangers that understand this don't put nails or screws to close to the wall as the wall drywall will hold up the edge of the ceiling.
So the builder should have his people remove all the screws that are within 18" of the walls.
If he dosn't beleive send him to this site.
http://www.wwta.ab.ca/homeowner/truss-uplift.pdf

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Old 06-30-2014, 07:56 AM  
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I assume this was taped right? A special crack-repair tape might hold up. See http://www.drywallinfo.com/drywall-n...k-repair-tape/

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Old 06-30-2014, 11:58 AM  
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Quote:
Originally Posted by Drywallinfo View Post
I assume this was taped right? A special crack-repair tape might hold up. See http://www.drywallinfo.com/drywall-n...k-repair-tape/
Won't help if the trusses lift and take the drywall with it.
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Old 07-01-2014, 07:23 AM  
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Quote:
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Won't help if the trusses lift and take the drywall with it.
Yes, you are right. There is a limit to what any kind of tape or bead can handle.
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Old 07-01-2014, 07:48 AM  
bud16415
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If there is constant seasonal movement and its more than a taped joint can handle the only two options I see for the OP is one to live with it or two hide it with a molding. Some of them are quite small and simple in shape and will clean up that corner look without standing out. The other way to go is make the molding a focal point something like a larger crown molding.

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Old 07-01-2014, 09:03 AM  
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Because your house was damp before and now you've running an air conditioner all the time.

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Old 07-01-2014, 02:21 PM  
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We use very little a/c as our home is naturally cool. No dampness. Addition has been respackled dead of winter as well as summer. Not sure there is a molding rustic enough to compete with existing log cabin...along with some eclectic wall/ceiling colors. It would almost interfere with the colors...



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