drywall at the wall-ceiling junction


Old 04-04-06, 01:39 PM
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drywall at the wall-ceiling junction

How should one fasten drywall to the ceiling joists? I've seen wall-ceiling corners crack and crumble through the year because, I believe, the ceiling joists shrunk and swelled as the seasons changed, thereby pulling away from (or pressing into) the wall panel, thereby cracking and grinding the drywall at the wall-celing intersection. What I'm thinking of doing in the new room is to avoid any glue or screw closer than 12" from the wall. In that way, any movement by the ceiling joists will simply flex the unattached part of the drywall and not pull the ceiling panel away from the wall panel.
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Old 04-04-06, 02:15 PM
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Although the lumber in a house will do a little shrinking and settling during its first year there shouldn't be any major problems. If a home is heated/air conditioned there shouldn't be any major swelling of any of the lumber.

I always nail/screw the rock at the corners and hardly ever have a problem. As long as the joints are taped and finished there shouldn't be a problem.
Old 04-04-06, 06:57 PM
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the method you suggest is actually the preferred way to attach drywall to ceilings where the roof framing is composed of trusses. Trusses are not attached to interior walls and therefore can lift and settle according to the seasons.

Regardless of whether or not you have trusses, you have the right idea, and not screwing the perimeter won't hurt anything. It may not completely eliminate hairline cracks from developing, however.
Old 04-04-06, 08:55 PM
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I've been havingvery good luck using quick set in my corners as opposed to regular setting compounds. I used to have a few hair line cracks in inside corners, after i made the switch life has been much better.

If this is a new home like real recently, there really is not much you can do about it. With construction being in overdrive these past 5-10 yrs producres were'nt/are'nt able to keep up so all the lumber and all the drywall is very new, actually had a drywaller haning rock that was produced that same week then as this "new" material dries it shrinks even more than normal since it's has'nt really had the "idle" time to dry itself. Was just in a 3yr old home today looking at more cracks than I could shake a stick at....molding pulling away from the walls, cracks in many inside corners, lots of crown moldings pulled 1/2" away from teh ceiling. Gal said her nieghbors house has the same thing happening.
Old 04-06-06, 06:37 PM
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I glue and screw everything tight into the edges and corners and add nailers on the wall parallel to the joists if need be.

If the corner "floats" and anyone hits it, or presses hard when they paint, it can lift it and crack the mud.

My .02

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