Damage To Wallboard Used For Exterior Sheathing Under Stucco
We live in a townhouse complex and have an exterior wall that is made up from 2x4Âs covered with 5/8" thick Type SCX wallboard, covered with building paper which is covered by the exterior stucco. A few yeas back our HOA replaced the shake roofs with tile roofs. In the reproofing process the roofers cut back the stucco to install flashing along the edge of the adjoining roof.
While investigating for a termite infestation in the attic recently we noticed that the roofers severely damaged the sheetrock under the stucco when they installed the flashing for the tile roofs. This damage was seen in every stud bay in the attic and most likely the same damage is present along the wallboard in our master bath below.
I have a few questions:
How common is it to use Type SCX wallboard as sheathing?
Is the wall compromised with respect to moisture infiltration?
How should this type of damage be repaired?
Thank you for taking the time to read my post and consider my questions.