I would like to put some (4 or 5) 120v lights on the exterior facia
boards of my 2-story house to illuminate the patio. If I read my
"Wiring Simplified" corectly, all of the exteior wiring must be in
conduit. Is there any way to do this with UF (or similar) behind the
With the 45 degree corners and rafter ends I am not sure how I could
(physically) route rigid conduit in the narow space at hand. Ideally
Iwould like to be able to install (staple) something like UF behind the
Any comments (except 'you knucklehead, you should hire...')?
Well, you could take the fascia off and run the
conduit in behind it, come farther in-board to where you've got room
to work, and branch out to each light, or use flexible armored
conduit. You could also use low-voltage halogens, to which
different rules apply.
It depends on where you live and what the code is there. In my neck
of the woods if the wire was behind the facia then it would no longer
be exterior. I would pull the facia off and run the wiring then put
the facia back up again. In some places all wiring is required to be
in conduit or flexible armored cable. You might want to specify where
you are to see if someone here knows the local code or better yet call
your local code enforcement office and see how it should be done.
What about running the conduit at the joint between the rafters and the
house then coming out through the fascia in whatever rafter bay you want
a light? Various conduit bodies or junction boxes could be used to
create a T at the joint. The conduit could be painted to match whatever
part it rests against and probably wouldn't be too intrusive.
Schedule 80 PVC can usually substitute for metallic ridgid conduit and
would be much easier to work with. There are pre bent fittings in
various angles or it can be bent to an infinite selection of angles with
heat (and practice). There are various tricks to this like filling the
pipe with sand first but you can search for those if you need more info.
I've never seen schedule 80 at a home center so you'd probably have to
get it from an electrical supply house.
Assuming this is normal 2 story height I'd be personally comfortable with
schedule 40 PVC or liquid tight flexible conduit but I'm not an
inspector. If you have a local inspector, I'd check with them. As long
as it was sunlight resistant, the UF would probably be relatively safe
with water tight fittings as long as no animal ate through it. I
personally wouldn't use just UF, however.
I assume you don't have an attic. That would open other options if you
My home is 50-60 years old. The air vent pipe is definately
galvanized. On the main waste line, it looks like it's CI though
The main waste pipe is black with slight rusty brown on some areas.
It's must thicker than the usual galvanized pipe. I suspect it's cast
iron. How can one tell...
I'm 99.99% sure it is CI. It was used almost exclusively back then, for main
drains. It will have a different ring when tapped with a hammer. There is
no need to pain galvanized, but CI would rust not painted.
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