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.

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. Or add furring strips and a second layer of 5 8 in. Drill 1 8 inch pilot holes for the new screws. Remove loose plaster from any holes in the ceiling.

Thickness of the plaster varies so be sure the screws are long enough to go through the plaster and lath. If your ceiling drywall is. Secure sagging plaster to the lath above by using screws and plastic washers. Laths are the wood slats that run perpendicular to the joists.

You can use plywood 1 4 in. Position the pilot holes 2 inches apart and make a circle with them around the loose plaster ceiling. Now the ceiling needs to be pressed upward until the plaster is back against the lath just where it belongs. Thick and either screw it to the ceiling or prop it up with wooden supports from below.

Ceiling drywall that sags between joists or trusses is sometimes called pillowed drywall. The adhesive will seep out through the drywall screw holes. Plaster is 3 8 lath is 1 2. You either have to replace 1 2 in.

What screws to use with plaster washers in a sagging plaster ceiling. Repairs become a bit more complicated when the plaster is sagging. Insert drywall screws with washers in the holes to draw the sagging plaster ceiling upward on the lath. 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. Allow the glue to cure for the time specified on the label directions. Insert a 1 5 8 inch drywall screw through the center of a plaster washer. Should i use 6 or 8 thickness.

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. What old house owner doesn t have a cracking or sagging plaster ceiling in need of repair somewhere. Don t forget to cover the plywood facing the ceiling with polyethylene plastic so it doesn t bond to the glue. Sagging in a ceiling may be caused by undersized drywall.

Use a utility knife to create a smooth edge.