Hi, Rudy, et al:
Yes, let it go, and gradually the loss of paint will improve conditions, because the brick will again breathe out absorbed moisture.
We just rebuilt one entire chimney, and part of another one, with the other five waiting their turn over the next few years. Paint was trapping moisture, and finally popping the clay, and aggressively blistering the paint. We think it might have been a cementitious Thoro product, so not easily removed with any strippers.
Our mason knocked off the loose paint to expose most of the brick face. From a stockpile out back, we had enough salvaged brick for the rebuilding. Now the rebuilt chimney has a somewhat mottled appearance, but at least the assembly can breathe. New mortar is lime-based with a little Portland to help it set up.
No more falling bricks and mortar...
Ilene R. Tyler, FAIA, FAPT, LEED AP
QUINN EVANS | ARCHITECTS
219 1/2 N. Main Street
Ann Arbor, MI 48104
ph: 734 663-5888
fx: 734 663-5044
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