In article , "Steve Barker" wrote:
Two options: (the condensate IS forming on the outside)

1. don't worry about it.
2. Insulate them on the outside also.

#1 may not be an option, depending on where it is and what's underneath it.
Think finished basement with ducts above suspended ceiling tiles which will be
damaged by dripping water.

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Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.