Has anyone ever used clay plaster to cover interior chinking? Clay is a product that is used as a finish on walls. It is very environmentally friendly, won't mildew, can be easily repaired, will absorb humidity and gradually release it, etc. The manufacturer, American Clay, is not aware of anyone having done this, but is confident it will work if the cement substrata is applied with a coarse finish to assist adhesion.
If i do this, I will first test it on a small space to see how it performs. I appreciate any advice or cautions you can give me. Thanks.