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-   -   need to run coax/flat roof (http://www.diychatroom.com/f18/need-run-coax-flat-roof-14849/)

jeeperaz 12-28-2007 02:11 PM

need to run coax/flat roof
 
Question:
How to run new coax.

Issue:

The side of our living room that has the TV does not have a cable outlet. The wall the TV sits against is essentially a free standing wall where no exterior walls are adjacent to it and no coax is near.

Flat, foam (or sometype of rubber matierial) roof. No attic space.

Currently, we are running the cable from an outlet on a far side of the room and pass it under the carpet to the TV. We are going to have tile flooring installed in the house and can no longer run the coax under the flooring (is my guess).

I have no clue how to get coax cable to the tv now. Any suggestions?

Regards from Phoenix,
Larry

jerryh3 12-28-2007 02:12 PM

Can you get access from underneath?

jeeperaz 12-28-2007 02:21 PM

Quote:

Originally Posted by jerryh3 (Post 83472)
Can you get access from underneath?

Nope.

sestivers 12-28-2007 02:22 PM

What about running it behind the baseboard?

jeeperaz 12-28-2007 02:38 PM

Quote:

Originally Posted by sestivers (Post 83476)
What about running it behind the baseboard?

That could be an option but again, the wall is freestanding in that it doesnt really touch other walls.... somewhere there would be a stretch (like a door to another room) where there is no baseboards.

sestivers 12-28-2007 02:45 PM

Oh, oops.

After you remove the carpet, maybe you could router a channel into the floor, and lay the the cable into the channel before you lay the tile down. It would need to be only 3/8" deep or so.

jeeperaz 12-28-2007 04:19 PM

Quote:

Originally Posted by sestivers (Post 83487)
Oh, oops.

After you remove the carpet, maybe you could router a channel into the floor, and lay the the cable into the channel before you lay the tile down. It would need to be only 3/8" deep or so.


I thought about that too. Certainly is an option.

A little more info...

There is a TV antenna connection outlet coming out of the wall where the TV is. It's probably what was installed when the house was built in the early 80's. It is not hooked up to our cable input. I dont know where the other end of it is or else I could probably figure out a way to fish cable coax through. I went up on the roof and dont see any wires up there other than what is from the cable company (and those all go to external walls where they drilled through and put an outlet on the other side of the wall).

220/221 12-28-2007 07:40 PM

Flat roofs are realy tough here in AZ.

You could rather easily drill thru the top plate(s) and end up above the roof but sealing the penetration is tricky. A small drywall patch or blank cover plate will fix the hole. If it lands in a high point you could probably seal it effectivly. If it's a low point and has to endure standing water for days at a time you want to use some serious sealant.

You COULD sneak one in the grout lines if it is big saltillo tile with 1/2 grout.

You COULD chilsel/notch out enough concrete to accept the cable under the tile. A diamond blade would be dusty but helpful.

You could also cut and patch the ceiling drywall to get where you need to go.


Look outside by you electrical panel for the other end of the existing coax.

goose134 12-28-2007 11:07 PM

Where are you located? I live in a two flat in Chicago and the flat roof is pitched. The front of the house has about 30" from the roof to the finished ceiling and the back has about 3 to 6" to finished ceiling. My point is this: if your roof is similar, you have ample opportunity to fish wire in this cavity, but it will require you to break a few holes here and there.

jeeperaz 12-29-2007 12:34 AM

Quote:

Originally Posted by 220/221 (Post 83552)
Flat roofs are realy tough here in AZ.

You could rather easily drill thru the top plate(s) and end up above the roof but sealing the penetration is tricky. A small drywall patch or blank cover plate will fix the hole. If it lands in a high point you could probably seal it effectivly. If it's a low point and has to endure standing water for days at a time you want to use some serious sealant.

Thanks. I think this might be the easiest way to go.

Quote:

Originally Posted by 220/221
Look outside by you electrical panel for the other end of the existing coax.

Nothing on the outside other than what was ran by Cox cable. My nephew came over today... he is a beginner electrician. He used some type of signal tracer to follow the existing coax through the wall. I dont know what the device is called but it made a tone whenever he moved it across a wall where the coax was nearby. We were able to trace it up to ceiling level then it shoots across a hallway over to the bedroom and down another wall before it basically dead ends... nothing on either side of the wall in this area, although it would be a logical point to have another tv jack here... at least at one time).

Drennen 12-29-2007 03:07 AM

channeling on the wall is a quick fix how ever you could go through the Floor like they said. If its cocreate get you a $30 dollar grinder and a $12 dollar blade and if its wood just pull the floor then drop your wire in then re screw it. I've barred many wires in concrete floors and it only takes a hour to cut a 35' trench.

220/221 12-29-2007 12:43 PM

If you drill up thru the roof use the smallest bit you can to minimize the patch. Determine how much room there is between the ceiling and the roof deck so you can get the right length bit. A 3/8 x 18" paddle bit may be long enough. Sometimes it's only 8-10 inches. In newer construction it will 18" plus. If you need to add an extension the diameter of the bit will have to be as large as the coupling on the extension. Also, they make really long bits...up to 5 or 6 feet.

You will be drilling blind so be AWARE. Once you get thru the top plate(s) stop the drill and feel around.

SeminoleMike 01-30-2009 06:36 PM

I have saltillo tile and ran 12 gauge speaker wire from one end of a large room to the other by putting the wire in the grout line and covering the wire with the grout. 5 years later and no issues whatsoever. Saltillo grout lines are wide and deep and you could probably do the same with coax. If you dont have Saltillo then my suggestion is not an option.


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