The correct term is plumb and yes it's important because it affects the aiming of the dish to pick up the sats correctly.
mast question...
Hello,
I wanted to install my new slimline for and hr21...how important is it for the mast to be completely level? does it even matter if my roof is on a slant?
I wanted to install my new slimline for and hr21...how important is it for the mast to be completely level? does it even matter if my roof is on a slant?
1 - 8 of 8 Posts
It makes things easier to more plumb it is. The roof can be slanted since the mast of the ka/ku dish has pivot bolts in the base so once th emast is bolted down you can adjust if for plumbness.
Even though all the above is correct..........try not to put the dish on the roof. With care you can find solid frame lumber (trusses) to lag bolt the mast to. Then you attach supports (monopoles) to form a triangular brace system. It will work.
But each of the lag bolts is a potential roof leak. You will then have to climb on the roof to service he dish and the cables (4) that will need to cross the roof somehow. Wind load will require checking the unit for attachment & leakage. It will have to be removed and reset for roof repairs.
Look for other places. Sometimes the roof it it. If a pole is possible I would consider it.
Joe
But each of the lag bolts is a potential roof leak. You will then have to climb on the roof to service he dish and the cables (4) that will need to cross the roof somehow. Wind load will require checking the unit for attachment & leakage. It will have to be removed and reset for roof repairs.
Look for other places. Sometimes the roof it it. If a pole is possible I would consider it.
Joe
thanks for the help...no, a pole wouldn't work for me unless it was like 20 ft high...how about my chimney?
Chimney could be good.
If the dish ends up pointing across the roof so it can be serviced it could be good. Caulk the tapcons to keep water from getting into the anchor holes. Drill the bricks and not the mortar joints. You still have to deal with running four lines to a ground block for grounding etc. If the chimny is sound I would do that rather than drill a roof.
If a chimney strap is available (anyone?) I would use that. I just don't recall seeing one for DTV masts. That will keep you from drilling a brick chimney.
I saw a non penetrating roof mount for DTV that sits on the ridge of the roof. It looked like crap but seemed ok technically.
Joe
If the dish ends up pointing across the roof so it can be serviced it could be good. Caulk the tapcons to keep water from getting into the anchor holes. Drill the bricks and not the mortar joints. You still have to deal with running four lines to a ground block for grounding etc. If the chimny is sound I would do that rather than drill a roof.
If a chimney strap is available (anyone?) I would use that. I just don't recall seeing one for DTV masts. That will keep you from drilling a brick chimney.
I saw a non penetrating roof mount for DTV that sits on the ridge of the roof. It looked like crap but seemed ok technically.
Joe
How about this??!!joe diamond said:If a chimney strap is available (anyone?) I would use that. I just don't recall seeing one for DTV masts. That will keep you from drilling a brick chimney.
Joe
http://www.ronard.com/
Doctor j
That could work. You get a 20 ft ( 2 10s ) section of 2" black iron pipe. Position it beside the house where the dish will go. You dig a hole for a concrete (1 bag) base and set a spot for the pipe by making a 2" (pipe size) x 6 " in the concrete. Beating the pipe end irregular at this point would be good so the pipe will not rotate in the wind. When the base is hardened use monopoles or similar to attach the upper end to the building. Try to not drill the roof. Allow for enough pipe for the dish and make it as close to plumb as you can. This could be cool! the cable can come down the pipe with quick ties and underground to the building.funkadelic23 said:thanks for the help...no, a pole wouldn't work for me unless it was like 20 ft high...how about my chimney?
Antenna towers are also available in ten foot sections.
I did one 20 ft 6x6 mast that is still working after three years but wood is not recommended. Needed eight bags of concrete and side bracing in two directions.
After looking at all this many just spike it to the roof and live with the downside of a roof mount.
Good luck.
Joe
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