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danzik17 11-20-2011 05:19 PM

Repairing corner cracks
I've got a couple long running ( over 3ft ) cracks in some corners that I'm working on fixing up before I paint and was wondering if scraping down to the drywall and re-taping/mudding is generally the best option?

If it is - are there any tricks to scraping compound off of the wall without nicking the very top layer of paper? I got the job done on the first crack and got better as I went along, but I still ended up with quite a few small nicks in the paper.

mikegp 11-22-2011 10:05 AM

Nicking the paper isn't that big of a deal in my opinion. Especially if it is within the area you will be mudding anyway.

I wonder if wetting the compound would help get it off easily. Also, try to deal with the cause of the cracking before repairing. Was the corner framed and connected correctly?

danzik17 11-22-2011 05:28 PM

Good to know about the paper, I was definitely a little concerned about that since I wasn't sure.

I don't know enough about corner framing to be able to tell you if it was correct, but I did feel like there was too much of a gap where the two boards joined. Maybe a centimeter or two ( it's mudded over now so I can't check ), but that's something I'll be checking on the second crack ( the worse one ) when I start on it if that's important. I also zipped a bunch of new screws into the boards to make sure they can't move at all.

It also looked like whoever put the drywall up originally tried to (poorly) use mesh tape in the corner - swapping that to paper will help a lot from what I've read.

stradt03 11-22-2011 07:15 PM

I've had good luck with the metal paper faced corner bead from USG.

danzik17 11-22-2011 07:27 PM

After reading your response and re-reading mikegp's, I realized I never said these were interior corners, not exterior ones - that's my fault.

mikegp 11-22-2011 07:51 PM

I assumed you meant interior. I've experienced them as well. I put 15 screws in a corner once to prevent it from reappearing. It actually worked. Some people don't believe in screwing corners and would rather let them float.

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