Sagging Plaster Ceiling Screws

Use your drill to drive the screw into the sagging plaster a few inches from the edge of any holes you created in step 1.

Sagging plaster ceiling screws.

Thick and either screw it to the ceiling or prop it up with wooden supports from below. Should i use 6 or 8 thickness. To avoid cracking the plaster and creating an even bigger repair job don t pull the plaster tight to the lath in a single motion. Or 1 1 4 long is sufficient.

To reattach the sagging plaster to the lath drive the washer with a power screwdriver or drill so that it penetrates the wood lath wall studs or ceiling joists. Position the pilot holes 2 inches apart and make a circle with them around the loose plaster ceiling. Thickness of the plaster varies so be sure the screws are long enough to go through the plaster and lath. This means that the plaster keys have come loose from the wood or wire lath that supports it which is a big problem for ceilings.

Ceiling drywall that sags between joists or trusses is sometimes called pillowed drywall. Drill 1 8 inch pilot holes for the new screws. Repairs become a bit more complicated when the plaster is sagging. The adhesive will seep out through the drywall screw holes.

You can use plywood 1 4 in. Fixing a sagging plaster ceiling. Allow the glue to cure for the time specified on the label directions. Besides the normal wear and tear of living plaster and lath ceilings are at the mercy of gravity and they can take only so many water leaks and structural movements before they pull away from the framing.

Don t forget to cover the plywood facing the ceiling with polyethylene plastic so it doesn t bond to the glue. What screws to use with plaster washers in a sagging plaster ceiling. If your ceiling drywall is. Remove loose plaster from any holes in the ceiling.

Sagging in a ceiling may be caused by undersized drywall. Laths are the wood slats that run perpendicular to the joists. Plaster is 3 8 lath is 1 2. Use a utility knife to create a smooth edge.

Secure sagging plaster to the lath above by using screws and plastic washers. You either have to replace 1 2 in. Now the ceiling needs to be pressed upward until the plaster is back against the lath just where it belongs. Or add furring strips and a second layer of 5 8 in.

Insert drywall screws with washers in the holes to draw the sagging plaster ceiling upward on the lath.