Info on Stucco and Plastering-August, 2019-fifty-eighth issue
EIFS mesh fails on painted stucco and concrete
Can you patch my stucco chimney ? There are areas that have bubbled up and are loose. The chimney was redone with EIFS mesh and EIFS finish
a few years ago.
This mesh and EIFS basecoat and finish is made for foam board, not painted stucco or concrete. This method will fail. We have peeled off a lot of this mesh making repairs.
There is no way of patching this, without doing the whole chimney, preferable with cement mortar, a permanent solution. Patching the bubbles and loose areas will not only show real bad, but it is only a matter of time before the edges of the patch peel and fail.
There is a neighborhood near me in Fairfax, Virginia, where the chimneys were redone this way. Every chimney is bubbling up and coming loose after a few short years.