Repairing a drywall ceiling with water damage can be done by replacing the damaged section of the drywall with a new section. This is the only way to truly repair the water damaged drywall because drywall by nature, is a porous material and will likely absorb the water, making it a cesspool for mold growth. The mold cannot be sanded down or painted over, so to avoid health complications, replacing the damaged section of drywall is the best remedy even though it may take some extra time.
Things You'll Need
- Utility knife
- Tape measure
- Straight edge
- Drywall screws
- Drywall compound
Cut out the damaged section of the drywall. Make sure that the section being cut out covers at least two ceiling joists even if the actual damaged area is smaller. Cut the section out with a utility knife, being careful not to cut any electrical wires behind the walls. Cut out a square or rectangular shape.
Measure the section needed to fill in the gap. Trace the measurements on a new piece of drywall with the same thickness as the existing drywall ceiling.
Score the marked lines with a utility knife, using a straight edge to guide the score. Score until the drywall is able to get snapped off. Snap the drywall along a straight edge.
Apply adhesive along the ceiling joist where the new drywall will be installed.
Screw the dry new wall into place with drywall screws, allowing the screw heads to break into the surface of the drywall. This will create a slight depression but will later be filled with compound.
Drive in the screws 7 inches apart along the joists.
Spread drywall compound, also known as "mud," with a trowel. Apply several thin coats rather than one thick coat, letting each layer dry. Sand down the final layer with medium coarse sandpaper to smooth out any rough patches. Prime and paint as needed.
- Photo Credit drywall worker image by Sherri Camp from Fotolia.com
How to Replace a Sheet of Drywall
It's often easier to replace a large amount of damage to an area of drywall than it is to "patch." Here's how...
How to Repair Drywall
There are a lot of problems that can make you need to repair drywall. A patch will make the difference in most...
How to Tape Drywall to the Ceiling
When attaching drywall to the ceiling, it's tempting to slap a coat of drywall compound on the joints, let it dry, then...
How to Repair a Drywall Ceiling
Ceiling repairs due to cracks, water stain, holes and exposed nails are common problems for most homeowners. It may seem daunting to...
How to Repair a Water Damaged Ceiling
A leaking roof can quickly become much more than a small inconvenience. Even after the roof is repaired, the aftermath can rot...
How to Replace a Drywall Ceiling
Drywall is a much used material in home construction, as well as in the commercial industry. It will last a long time...
How to Hang Drywall Over Existing Drywall on Ceilings
For a ceiling that is cracked and possibly stained, a good method is to re-cover the entire ceiling with a new layer...
How to Fix Sagging Drywall Ceilings
Before you attempt to fix sagging drywall ceilings, you need to find out why they are sagging. Very often it's a moisture...
How to Cover Up Water Stains on your Ceiling & Walls
Learn how to cover up water stains on your walls in this free DIY painting video.