No sir, manufacturer's specs doesn't call it. But it will be subject to the Florida weather. Crazy sometimes.
You are correct, sir....I read the same thing. I'm asking because there some videos out there doing "hardening" of antennas. Such as heat shrinks, spraying the antenna with several coats of clears lacquer and drilling extra base mount screws.
Some hams like to over engineer things. Some hams like to over think everything.
The antenna should be designed to handle this sort of environment. Usually you'll see maximum wind speed specs for antennas. Unless you are exceeding that sort of environment, you shouldn't need to add locking compounds, extra mounting bolts, etc. Torquing to manufacturer specs should be enough to meet the design specifications. Adding an insulating layer between the threads isn't a good plan, although the tapping of the holes should ensure a tight fit that should prevent issues.
Snug it with a wrench if the installation instructions don't include a torque spec. Keep an eye on the antenna, periodic preventative maintenance would be a better approach.
The lacquer over the antenna is to help reduce weathering of the fiberglass. I've got antennas up at work that have been there for 20 years and haven't needed anything additional done to them. I have some sites that see hurricane force winds in the winter time, sometimes with the addition of a layer of ice, and never had a commercial quality antenna have an issue. However, with the ham/hobby grade stuff, your milage may vary.