"blueman" wrote in message
...
writes:
Pawlowski is, again, correct.
The water on the pipe surface comes from the air.
Thus, a well sealed insulation jacket will not allow moisture to fomr
on the pipe.
TB

How well sealed is "well sealed"?
Is it enough to buy the Home Chepot middle-grade stuff that comes with
taped edges that you push together?

As long as it holds, yes.

My sense is that the adhesive tape is enough to keep it on the pipe but
not
enough to make a real seal.

If you have concerns wrap some tape every 12" or so. Duct tape or
electrical tape will work. Mine has b een holding for about 20 years, but
that does not mean what you buy today will.