Can Sagging Ceiling Wallboard Be Straightened? - Building & Construction - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


Thread Tools Display Modes
Old 07-22-2008, 09:44 PM   #1
Join Date: May 2008
Posts: 91
Rewards Points: 85

Can Sagging Ceiling Wallboard Be Straightened?

My father's house had a water leak, which damaged the ceiling wallboard and seems to have caused it to sag down from the joists about 1/2" around the damaged section. The resulting hole is about three feet long by one foot wide. I'm wondering what would happen if I just screwed the wallboard back up into the joists to remove the 1/2" bowing, and then patched the hole with drywall, instead of ripping out huge sections of wallboard and making the hole even bigger.

By the way, does ceiling wallboard ever just sag because of old age and not water damage? This is a 50-year-old house, and most 50-year-olds sag in places, don't they?


MrBill_DIY is offline   Reply With Quote
Old 07-22-2008, 10:11 PM   #2
Registered User
Termite's Avatar
Join Date: Apr 2008
Posts: 6,520
Rewards Points: 2,000

If the wallboard has endured direct water contact, it is shot. It must be replaced, and there's no other way to do it in my opinion. The water just does too much damage to the structure of the product, and it isn't made to take it. Adding more screws might help, but is a band-aid fix at best. Hopefully the source of the leak is fixed!

Applying drywall mud to level out the dips won't work, because the patch is only as solid as the substrate.


Termite is offline   Reply With Quote
Old 07-23-2008, 05:13 AM   #3
Lic. Builder/GC/Remodeler
AtlanticWBConst.'s Avatar
Join Date: May 2006
Location: New England
Posts: 7,556
Rewards Points: 2,000

As stated. Remove the bowed section.

Start by marking it out with pencil. Then take a T-square, or framign square and measure out a perfect rectangle or square of the section. (By cutting out a square or rect. section, replacement will be easier to cut and insert)

Use strapping to screw into the hole, and overlap to the surrounding sheetrock that is left.

Attach using 1-1/4" Course thread drywall screws. Insert and screw off the new patch.

Tape and coat.

Tips: The make the patch less visible, you have to really spread out the coats to blend it into the surrounding surfaces. Apply a stain-kill over the areas, prior to repainting, to cover any water stains, either visible or not.

Good Luck.
- Build Well -
AtlanticWBConst. is offline   Reply With Quote
Old 07-23-2008, 09:14 AM   #4
buletbob's Avatar
Join Date: May 2008
Posts: 1,543
Rewards Points: 1,000

The correct way is disscribed by the KCTIRMITE & ATLANTIC I need not say more. GOOD LUCK
buletbob is offline   Reply With Quote
Old 07-23-2008, 01:42 PM   #5
Drywall contractor
Join Date: Jul 2008
Location: Lilburn, GA
Posts: 2,129
Rewards Points: 1,070

I agree cutting out and replacing is best in the case of water damage. Drywall CAN sag over time on it's own. An obvious place you can see this is in an open carport of an older house. Humidity and moisture will sag the drywall between the joists. This can also happen indoors and is most common where joists are on 24" centers. Add the weight of texture (stipple or spray) and the problem is often worse. It IS possible SOMETIMES to push up and re-nail/screw sagged drywall where nails have "popped" or glue has failed. The main problem usually is when there is blown insulation above the ceiling. It gets between the rock and the ceiling joist and won't allow you to push the rock up tight to the framing member.
If you can read this, thank a teacher. If you can read this in English, thank a soldier. Support our troops.
bjbatlanta is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ceiling condensation icemand Building & Construction 1 12-15-2009 05:16 AM
Old ceiling replacement idsp General DIY Discussions 12 07-25-2009 10:48 AM
Pot lights in a drop ceiling Howdy Electrical 3 03-14-2008 08:23 PM
sagging roof and ceiling randys Roofing/Siding 4 03-13-2007 07:21 PM
sagging ceiling KatieS Remodeling 2 03-21-2006 07:24 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1