A few pro tips can help the job go more smoothly.
Tip
Be sure that the problem that caused the damage is fixed before replacing the drywall.
Usually, sagging, warped, moldy, or wet drywall is due to some source of moisture.
The Spruce / Kevin Norris
If there’s an attic above the damage, there’s probably a problem with the roofing system.
If the damage is below an upper floor, the problem is typically plumbing-related.
Move the batts to the side.
The Spruce / Kevin Norris
Take note of these hanging edges because they will not be picked up by the stud finder.
Below the ceiling, identify places where the drywall is attached to joists by using a stud finder.
Outline your planned “cut edges” withpainter’s tape.
The Spruce / Kevin Norris
Removing drywall without damaging adjacent areas is difficult, and there is no one way to go about it.
In some instances, you will have no exposed joists on which to nail your new sheet of drywall.
The edge of your drywall can’t just hang in mid-air; it has to be attached to something.
The Spruce / Kevin Norris
The drywall will be screwed to the furring strips.
Screw in the New Drywall Panel
Buy new drywall that matches the thickness of the old material.
Measure the patch area, and cut the new sheet to fit.
The Spruce / Kevin Norris
A tight fit is ok too.
Space the screws no more than 12 inches apart.
This is especially important on ceiling applications because screws set too deep will not have enough holding strength.
The Spruce / Kevin Norris
If a screw accidentally breaks the surface, another screw can be placed within a half-inch of it.
If you’re worried about dust, you might use a low-dust compound.
Sand all of the compound with a pole-mounted sander, or sand it by hand from a ladder.
The Spruce / Kevin Norris
Wear goggles and a face mask to keep dust out of your eyes and airways.
What If You Have Loose-Fill Insulation?
If you have loose-fill attic insulation, it may containasbestos, though this is the exception.
Lee Wallender
Loose-fill insulation is easy to move, but a little messy.
Do not compress the insulation because this diminishes its insulating quality; keep it fluffy.
What if There Is No Attic?
Protect Your Family from Asbestos - Contaminated Vermiculite Insulation.
United States Environmental Protection Agency.
