"Allodoxaphobia" wrote in message
...
On Fri, 10 Dec 2004 15:20:50 -0500, Dave VanHorn hath writ:


I'm thinking in terms of a 6" pvc into the attic, some of the cables I
need
to pull thru are nearly an inch in diameter.

Probably a thing that keeps your local fire marshal awake at night.

A vertical, non-fireproof chimney (and that's what 6" PVC is) running
vertical between floors will facilitate the growth of a small fire on
a lower floor into one of catastrophic proportions. Use metal conduit,
and stuff some coarse steel wool into the ends after you have run
the cables. You, you family, and the fire marshal will sleep better.

It's a Real Good Thing to even stuff something like steel wool into
overly large holes used to pass smallish cable through sill plates.

Good point. I have used fiberglass insulation for both minimizing heat loss
and for some firestopping, however you can purchase from many electrical
contractors .. firestopping putty
(it was a red colored putty when I used it 12 years ago)

gb