Well, I guess I'm part of the 4% too stupid to live...
Mine is mounted to my roof along with an additional tripod that supports my OTA Antenna and a 2m ground plane. No leaks in 10 years. and that includes after a re-roof 2 years ago.
The name of a product that can be used on ANY wet surface and ensure 100% watertight integrity?
Eternabond,
I've installed this stuff under ponded water on a low slope roof with no problems. Sticks to anything and will provide a leak free installation.
Never leave the shop without it. Available at roofing supply houses and many retail outlets.
quoted from the sternabond website.
http://www.eternabond.com/install/wet.htm
Installation on Wet Surfaces or underwater sealing...
EternaBond works best on a clean, dry surface but there are times when a repair needs to be made to something wet, or even under water. EternaBond will not adhere to all materials when wet, especially if that surface is porous, like wood or concrete, but our success on many materials that are not porous, like rubber, metal, sealed concrete as in an in-ground pool, have been very good. We do not warranty the EternaBond in these kind of repairs, but again, our success has been so good, it may be worth the try for you
not trying to be picky here but its stuff like this that is the difference between my liability insurance staying the same or going through the roof.
after many years in the electrical trade and seeing what happens to people when some installation causes a problem i make it a point to use only things that are spec'd for the application.