If the surface is painted we will not succeed to understand the line however you will be able to understand the hardness in the zone where the problem has occurred. If your drywall water damage is in the attic then a professional could possibly see a leak where the drywall became damaged to the studs or they will see paint erupting or even the drywall itself poking under the anchor of the liquid.

In case any of these positions take place one has to block the inception of the moisture as rapidly as it is real or produce the zone dry in a wind like appearance. The appliance of high expedition cleaners or ionic purifiers is definitely tested in water damaged drywall settings to make the area dry fast.

This way people could be convinced that the area could increase to the necessary lower humidity very fast. For some more secrets about drywall damaged by water please send a comment and people are trying to make everything real to answer it!