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.

Sagging plaster ceiling screws.

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. And regular drywall screws or deck screws to prevent corrosion emanating from plaster. You either have to replace 1 2 in. Ceiling drywall that sags between joists or trusses is sometimes called pillowed drywall.

Sagging in a ceiling may be caused by undersized drywall. Don t forget to cover the plywood facing the ceiling with polyethylene plastic so it doesn t bond to the glue. 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. Use a utility knife to create a smooth edge.

Thickness of the plaster varies so be sure the screws are long enough to go through the plaster and lath. Fixing a sagging plaster ceiling. 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. Insert drywall screws with washers in the holes to draw the sagging plaster ceiling upward on the lath.

Insert a 1 5 8 inch drywall screw through the center of a plaster washer. The adhesive will seep out through the drywall screw holes. Position the pilot holes 2 inches apart and make a circle with them around the loose plaster ceiling. Plaster is 3 8 lath is 1 2.

Drill 1 8 inch pilot holes for the new screws. Should i use 6 or 8 thickness. 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. Remove loose plaster from any holes in the ceiling.

What old house owner doesn t have a cracking or sagging plaster ceiling in need of repair somewhere. If your ceiling drywall is. Laths are the wood slats that run perpendicular to the joists. Allow the glue to cure for the time specified on the label directions.

Secure sagging plaster to the lath above by using screws and plastic washers. Thick and either screw it to the ceiling or prop it up with wooden supports from below. Or 1 1 4 long is sufficient. Now the ceiling needs to be pressed upward until the plaster is back against the lath just where it belongs.

What screws to use with plaster washers in a sagging plaster ceiling.