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Question DetailsAsked on 4/22/2016

drywall ceiling cracked and changed color after a few weeks. what might have caused it?

3 level new house in Las Vegas, NV about 6 months old. The crack is directly under the master shower so I am worried that it might be a leak. But the warranty company used a moisture detector and said no moisture. The crack is about maybe 8 inches and the discoloration is about 5 inches and rectangular shape. They said it's the taping.

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Voted Best Answer

Is your house still under builder warranty - as opposed to on a third-party warranty ? Because just a discolored patch, whatever the cause (as long as not due to your actions) would be cause for a new home warranty claim. Or did you get trapped into one of these new home deals where the contractor buys a third party warranty package for a few hundred $ (which in my opinion are not worth the paper they are printed on) as your "Builder's Warranty". A lot of what I consider shifty builders and contractors are doing that, and buyers are not reading the fine print and think the builder will take care of any problems for a year or so when they are actually contracturally shedding that responsibility to a third-party whose best method of making a profit is denying legitimate claims.

Note - if you are in a state or city with a mandatory builder's warranty, if the third-party warranty provider will not cover it, the builder is till on the hook regardless of any contract terms.

If it discolored, barring anything in the room that would do that like very high humidity, sounds to me like there was a leak there already (or at least suspected) because a 5 inch rectangle in drywall would not be nomal unless a light fixture or outlet location that ended up not being used - had to be a cutout that was later patched up, to look for or fix a leak - maybe during construction. But regardless of why - and whether the taping getting wet or not - still their responsibility to get fixed if under warranty.

BTW - most of the cheap moisture meters are the pits - I went through several $30-60 variety ones and found they read very high humidity on low humidity paper and wood, zero or near-zero to less than 15% (so quite dry) on totally saturated wood, and even got readings over 100% (which is impossible) on dampish but not wet wood and drywall. Had to get into the $100 plus professional type to get anything resembling accurate readings - served me right for going cheap, though Amazon did refund all the money without problems on the reject ones.

Answered 4 years ago by LCD


so first it was only a crack about 5 months after we moved in

And then a few weeks later, the discoloration appeared.

It's still under warranty and the warranty company is gonna fix it.

Since they claimed there was no leak, they are going to tape it paint it.

From the pictures I provided, do you agree that there was no leak?

Answered 4 years ago by definite

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