*Kate I never saw a hollow medallion so I cannot give you the benefit of
my personal experience. It is possible that screwing it may indeed have
a detrimental effect. With the foam filled models the screws bring it
up closer to the ceiling all around to minimize the gap. Some
manufacturers have even enclosed drywall screws with their medallions.
If you are satisfied with the results by just caulking then I would
leave it alone. Wait and see what effect age and heat may have on it if
any. You could try and contact the manufacturer for their advice.



I am leaving it as is. It looks good. Many, many thanks.