I have erected many aerials, the problem is coax looses signal so there is a trade off, thicker coax and remote aerial, signal booster at aerial, local aerial, and it all depends what works in that location, I had the aerial on garage at last house so house was between winter hill transmitter and aerial so I could only receive Moel-y-parc as other wise TV was for ever retuning its self and swapping what numbers were which program.
Here Moel-y-sant is like the chocolate fire guard, rather useless, so only use satellite, it is rather pointless erecting any aerial, and I have seen coax of around 6" diameter to aerial arrays, although it was designed to receive very weak signals.
And when in Hong Kong I used 300Ω feeder cable selotaped to window as an aerial.
Any grounded metal structure will attract in an electrical storm, so we could not mount aerials on chimneys as soot lined so attracts, or gable ends as sharp corners also attract, but in the real world in UK no one tends to take much notice of that.
If it works use it.