What's the best way to repair water soaked sheet rock in a ceiling due to a leak?
Question:
Answers:
Remove and replace.
If the damage is in the center of the room, cut out a square large enough that you're back to solid sheetrock. In the direction of the joists, cut back to the nearest joist, then nail a 2x4 to the face of the joist, creating a "nailer" to attach the new drywall to. In the direction across the joists, no additional support is required - just a nail at each joist.
If the damage is near a wall, take a utility knife and carefully score along the wall/ceiling joint before taking down the ceiling. There's a build-up of tape and joint compound at the intersection, and you'll likely damage the wall if you just rip the ceiling off without first cutting the tape.
Here's a video tutorial on installing drywall on a ceiling-
http://www.easy2diy.com/cm/easy/diy_ht_i...
REPLACE IT!
gotta agree with hen - replace it.
Depending on how large the room is for the ceiling that is
is water damaged your best bet is to replace it. If you can replace A section you need to cut the damaged area out back to the stud as far away from the damaged part all the way around . but remember when tearing down the drywall that there is insulation above. Also if the room is small you may be able to just hang your new drywall over the water damaged drywall with two inch nails as long as you don't have any real bad sags or bulges.
You will NEVER get rid of the brown stain ( no matter how many times you paint it ) associated with wetting this stuff so the only answer is to replace it I'm afraid.
The only valid repair is to replace the damaged area.
If the sheeprock has not been destroyed, painting will allow the stain to bleed through. Cover the stain with varnish to seal it, then prime and paint.
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