The adhesive will permanently rebuild the bond between the plaster and the lath.
Fixing water damaged ceiling plaster.
Drill into the plaster photo by david carmack.
In a plaster ceiling you can seal a small crack with a strip of fiberglass mesh tape then plaster over the tape.
Water damage of less than around 4 inches across is usually safe to repair yourself.
The repair process on this page can be used to repair water damage to the surface layers of plaster walls and ceilings.
Over time plaster may delaminate or become detached from the surface beneath.
What you need to know first is before you can repair the ceiling you must locate and repair the issue causing the water damage in the first place.
Try to be as gentle as possible but if the damage is deep you ll need to get the blade in to dig out any soft material.
If you have more severe plaster damage with wall material falling off the lath use the process at this link to make repairs.
How to repair plaster walls 1.
Plaster is likely to be damaged by movement or the results of external factors like impact or damp.
Using a 3 16 inch masonry bit drill a hole in the plaster about 2 inches from the crack.
The second step in this guide on how to repair water damaged plaster walls is to remove the damaged plaster.
When you hit lath stop the bit won t go through wood pull out the bit and drill another hole about 3 inches from the first and about 2 inches from the crack.
Take away all material that is bubbling flaking or peeling using a putty knife.
Fixing a water damaged plaster ceiling.
While plaster ceiling are more resilient to water leaks compared to drywall they are not impervious to its.
Plumbing leaks are fun right.
Repairing a larger crack is trickier but doable with the aid of plaster buttons washers and drywall screws.
Taking care of minor damage.
A water damaged ceiling comes in all different shapes colors and sizes.
The plaster magic is a permanent fix that does not need to redone again.