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.

The adhesive will seep out through the drywall screw holes. Laths are the wood slats that run perpendicular to the joists. Thickness of the plaster varies so be sure the screws are long enough to go through the plaster and lath. Ceiling drywall that sags between joists or trusses is sometimes called pillowed drywall.

You can use plywood 1 4 in. Use a utility knife to create a smooth edge. What screws to use with plaster washers in a sagging plaster ceiling. Insert a 1 5 8 inch drywall screw through the center of a plaster washer.

Drill 1 8 inch pilot holes for the new screws. Should i use 6 or 8 thickness. Plaster is 3 8 lath is 1 2. 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.

And regular drywall screws or deck screws to prevent corrosion emanating from plaster. Now the ceiling needs to be pressed upward until the plaster is back against the lath just where it belongs. You either have to replace 1 2 in. What old house owner doesn t have a cracking or sagging plaster ceiling in need of repair somewhere.

Allow the glue to cure for the time specified on the label directions. 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. Or 1 1 4 long is sufficient. Don t forget to cover the plywood facing the ceiling with polyethylene plastic so it doesn t bond to the glue.

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. Fixing a sagging plaster ceiling. Sagging in a ceiling may be caused by undersized drywall.

If your ceiling drywall is. Or add furring strips and a second layer of 5 8 in. 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. Position the pilot holes 2 inches apart and make a circle with them around the loose plaster ceiling.

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