John,
If it is a small repair, you may want to test out a product at Lowes. Homax ceiling texture. I'd suggest trying it on a scrap piece of drywall (make sure it's at ceiling height for testing). ... read more
Per ANSI/IICRC S500 Standards and Reference Guide.
"Restorers should consider drywall restoation when it can e verified that no structural integrity has been lost. Dywall can be restoragle if the wat ... read more