My newly acquired old house had a problem with brick mortar around the attic gable vent. Water got in and damaged some plaster wall. I paid a guy to re-mortar the gable vent area and now I am waiting for the plaster wall do dry so that I can repair it. How long am I supposed to wait? It has been 2 months and it does not seem to dry? I think some water still gets in with each rain.
I do have a moisture meter that currently shows 100% moisture level in that area. How can I dry the wall down so that I can wait until the next rain to figure out if more moisture still gets in?
Thank a lot!