Are you sure it is drywall tape? Sometimes the contact line between the
strapping or joists will show through drywall, unrelated to drywall tape. I
think it is something to do with different temperature/moisture of the
drywall in direct contact with the underlying wood, as opposed to contact
with overlying insulation elsewhere. Dust in the air deposits at a different
rate depending on the above factors, resulting in lines showing through
years later. You need to be sure before you start....

Dave

wrote in message
oups.com...
In two rooms, there appears to be raised stripe between the sheets of
drywall on the ceiling. I am not aware of water damage or leaks that
may have caused this (ranch house, no rooms above). This looks to be
exactly the width of the drywall tape used.

I am not planning to re-drywall ceilings, but is there a nice way of
fixing this. Should I try to smooth it out by mudding around the
stripe?

C_kubie