I just had a sub drywall a vaulted ceiling and tape it. They then painted it for me before I had a chance to look at it with lighting. There are fluorescents shining right up the ceiling and it looks terrible. Every tape joint shows. My question is, can we skim coat over fresh latex paint, do we need a bonding agent, etc, or should I just go over it with some 3/8 sheetrock and start from scratch and make him do it right this time.