Am renovating an old house and tore down tile ceiling blocks in three rooms. They were stapled to wood strips that were nailed into plaster ceilings. I had to plaster many places in the ceilings to fill in the holes made by removal of the nails and places where the old paint had peeled. Afterwards I painted the ceilings. In a period of weekd the paint peeled in some parts of the ceiling. Each time I replaster crack lines appear and the plaster can be peeled off. What can be done to stop this.