To remove a water stain from the ceiling, clean the stain with a solution of three parts water and one part bleach. Apply a stain-blocking primer, and repaint. You need a paint roller, primer, water, bleach, ceiling paint, a rag, and paper towels to complete this task.Continue Reading
Fix the source of the leak to prevent more leakage. Seal a small hole with bondex. Replace the iron sheet or roof tile if the hole is not sealable.
Mix three parts water and one part bleach in a bucket. Place a plastic sheet directly below the stain so you don't dampen the ground. Dampen a clean rag with the solution, and scrub off any mold and dirt. Once clean, rinse the spot, and dry it with a paper towel.
Use a paint roller to apply a stain-blocking primer to cover the spot. Use paint brush in the corners. Take care not to inhale fumes from the primer to avoid poisoning. Allow the primer to dry.
Once the primer is dry, use a paint roller to paint the ceiling with a matching ceiling paint. Use a paint brush to paint in the corners. Let it dry, and paint again if needed.