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. Don t forget to cover the plywood facing the ceiling with polyethylene plastic so it doesn t bond to the glue. Insert drywall screws with washers in the holes to draw the sagging plaster ceiling upward on the lath. 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. Laths are the wood slats that run perpendicular to the joists.

If your ceiling drywall is. Allow the glue to cure for the time specified on the label directions. Plaster is 3 8 lath is 1 2. And regular drywall screws or deck screws to prevent corrosion emanating from plaster.

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. The adhesive will seep out through the drywall screw holes. Should i use 6 or 8 thickness.

What old house owner doesn t have a cracking or sagging plaster ceiling in need of repair somewhere. Use a utility knife to create a smooth edge. Repairs become a bit more complicated when the plaster is sagging. Remove loose plaster from any holes in the ceiling.

Fixing a sagging plaster ceiling. You can use plywood 1 4 in. Now the ceiling needs to be pressed upward until the plaster is back against the lath just where it belongs. Insert a 1 5 8 inch drywall screw through the center of a plaster washer.

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 add furring strips and a second layer of 5 8 in. Sagging in a ceiling may be caused by undersized drywall.

Or 1 1 4 long is sufficient. Ceiling drywall that sags between joists or trusses is sometimes called pillowed drywall. You either have to replace 1 2 in. 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.

Drill 1 8 inch pilot holes for the new screws.