How To Repair Water Damaged Ceiling Plaster. Damaged plaster doesn’t insulate a home as well as plaster in good repair. After all water has been let to drip from the affected areas, use a couple fans and air dry the damaged ceiling until completely dry.
If you cannot get into an attic above the leak and water is dripping down from one point in the ceiling, place a bucket on the floor under the drip. Water damaged ceiling goes unnoticeable unless the damage is irreversible. Leave a little extra on both sides for stability.
Wipe off the excess thoroughly and let the conditioner set for 10 minutes.
Leave a little extra on both sides for stability. Very deep cracks in plaster may be filled with gypsum or another patching compound. How do you repair a water damaged plaster ceiling? Physical damage due to water exposure is also an indicator of replacement.