hired a contractor to remove old popcorn ceiling (tested no asbestos)
for some reason, the ceiling has drywall then a layer of plaster then a layer of compound then the popcorn ceiling. The contractor is now telling us that it's too difficult to remove the popcorn ceiling and that if removed the plaster would be damaged to a point that it would be difficult to make a flat smooth surface. Instead he has just put compound over the plaster.
Question: 1. putting joint compound/plaster over popcorn ceiling kosher? 2. what's the longevity of this process, prob bad if ceiling gets wet. 3. will removing popcorn placed over plaster really that bad to remove or is contractor full of it? 4. he already covered about 1/4 of ceiling, any recommendations on what we should do?