Stucco patching (no air gap possible)
When patching historic stucco, what’s the best WRB to use?
Here I’m patching a couple hundred sf of 1938 stucco, installed with over single layer of paper (quite thin tar paper apparently, where it can be found, which is not everywhere due to termites).
Do I go with two layers of Grade D paper, and hope the outside layer wrinkles to create a bit of an air gap? I’d like to go with a drainage mat, but there’s a need to match the existing wall thickness.
What’s the best practice for stucco patching?
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