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justin 418 12-24-2009 09:23 AM

repairing drywall cracks in ceiling
i have afew cracks running the length of my ceiling and im wondering the best way to go about repairing them. some say tape others say just fill in the cracks so im curious to see what advice is out there, any advice would be helpful,thanks

bkeech 12-24-2009 10:05 AM

you will want to use tape, paper tape for its strength. Then finish as usual (ie 3 coats or so).

Bob Mariani 12-24-2009 12:24 PM

open the crack with a v-groove pattern to allow some compound to seal the crack. Use paper tape and compound with three coats to feather it out. Use Durobond 90 for the first two coats. This dries faster and much harder. The premixed compound can be used for the last coat.

bjbatlanta 12-28-2009 05:18 PM

If they run the length of the ceiling, it sounds like the tapered edge joints that are cracking. Are the cracks 4' apart?? Makes me wonder if there's a lot of lumber movement occurring with seasonal (heat/cool) changes? Could be the framing is over spanned. Just "hairline" cracks? How old is the house? Your best bet would be to tear out back down to the drywall, tape and all. The tape itself has likely cracked due to some sort of movement. You can tape over the cracks and finish, but you're just "piling" more mud on and will most likely end up with the joints bulged (unless you're a fairly accomplished finisher). Re-tape with paper tape and setting type compound (more strenght and less shrinkage), two coats of compound (ready mix is fine), sand and paint.

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