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
It can vary widely based on what kind of window you have now (aluminum, wood, vinyl, etcl) as well as if you have brickmould casing on the exterior etc. It can be up to 5" different. Just ... read more