On Oct 31, 2:41*pm, RicodJour wrote:
On Oct 31, 3:33*pm, Joe wrote:



On Oct 31, 12:52*pm, "hr(bob) "
wrote:

On Oct 31, 12:19*pm, Tony Hwang wrote:

Joe wrote:
I am trying to reroute my upstairs bathroom pipes away from the
exterior wall (actually an enclosed space behind a kneewall).
They currently run in an inside (room dividing) wall until they hit
the rear wall, behind which is the "crawlspace" open to the rafters
and such. The pipes froze once back there, and its a horrible place to
work in (mice love it) so I want the pipes out of there. Anyway they
turn that corner and then branch in the "crawl space" to the toilet
and bathtub. Below this bathroom and crawl space there is a false
ceiling, that I would like to run the pipes through instead.

But the only way to do that is to drop them straight down inside that
interior wall until they clear the joists below, then running them
under those joists above the false ceiling to where they need to go.
Going through the joists would be preferable, but I cant see how it
can be done-with 16" centers I dont see how to drill through them.. But
the hardest part of all is just getting the pipes down to where I can
see them and work with them. Directly below the wall they are in,
there is an extension of that wall into the upper foot and half of the
lower level. This forms one "side" that the false ceiling is hung
from. Its like they knocked out a wall and left just the upper
portion. Does this make any sense? Its hard to describe. But I just
cant see how I can get the pipes down through that so they are below
joist level, without demolishing part of that wall so I can see wtf
I'm doing. Any ideas? I'd sure like to avoid calling a plumber but I
may have to...

Hi,
How about insulating the space/pipe with spray foam?- Hide quoted text -

- Show quoted text -

Sounds like a lot cheaper and easier solution. *They even have
extender poles so you can put a spray can at the end of a 4' pole and
control it by your hand to reach into spaces that you can't get
directly to. *Paint stores carry them, but anything that has a
standard top will fit into these extender poles. *If you can get
within 4' of where you need to spray the insulation, the foam in a can
is great. *Don't get the super expanding foam though, as it really has
a lot of force when it expands and it might bend/break/crack a wall.

I spose I should elaborate on the space...its the space formed by the
narrower second floor and having a steep pitched roof. The space is
quite large. The roof is insulated, but probably not insulated well
enough. Thats another problem but not one i can tackle at the moment.
If my heat goes out, any pipes in there are at risk of freezing
because its the coldest part of my house, even if they are extra
insulated. It goes to 40 below here and I dont think pipes in outside
walls are even legal, or at the very least not recommended...I do not
want another broken pipe....

Define pipe. If you are talking about copper, you might want to look
into PEX. *If you have a run of PEX without any fittings it can freeze
without damaging it. *The PEX plastic memory will return the tubing to
its original size, and it has more than enough stretchability to
accommodate freezing water. *Of course you won't have water while the
pipe is frozen, but you also won't have burst pipe, flooding and
repair work.

R

Well I was planning to use PVC for the reroute, but existing pipes are
copper.

Perhaps I havent emphasized this part enough: I really dont want to
work in that space. Its nasty nasty nasty from all the rodents that
have lived there for 3 years since this was built, and I have to
slither in on my belly. I really want to have the pipes go elsewhere
so I never ever (ever!) have to go in there again.