[TowerTalk] Verticals and Metal Roofs

[Paul Carr]

I want to install a vertical antenna on a structure with a metal roof 
using a tripod. What are the issues with mounting a vertical in this 
fashion?

Does the antenna need to be mounted a certain height above the metal 
roof?  Should the base of the antenna be grounded to the roof or should 
I strive for isolation?  Can anyone describe actual installations?

I assume that "insulated" radials will be required.


Paul
WL7PC