Hudson Valley
New Member
Hi. We had a new house plastered— walls, ceilings, and cornice— 17 years ago. It was done by an older plasterer who came out of retirement for the job. He did beautiful work and it has worn well except in one spot.
A year ago a section of cornice over the stairs began to blister and crumble, not big chunks but small bits of dust and chips. We cleaned it up a bit and left it alone even though it looks terrible. It mostly stopped shedding plaster onto the stairs until yesterday when it suddenly started again. It’s very humid here now.
Any thoughts about what could cause this? There is no source of water leaking in that area and no staining.
A year ago a section of cornice over the stairs began to blister and crumble, not big chunks but small bits of dust and chips. We cleaned it up a bit and left it alone even though it looks terrible. It mostly stopped shedding plaster onto the stairs until yesterday when it suddenly started again. It’s very humid here now.
Any thoughts about what could cause this? There is no source of water leaking in that area and no staining.