On 22 Sep 2006 20:09:56 -0700, "Dee" wrote Re
Insulation:

Was wondering, I live in a trailer, so some of my plastic water pipes
are exposed to the outside air under trailer, when i put my heat tape
on the pipe, is it ok to use anything tight over the heat tape, must i
use insulation over the heat tape, is duct tape ok to use over the heat
tape??

Read this for some help
http://www.mygreathome.com/fix-it_guide/heat_tape.htm