Lynnmor wrote:
Maybe you could put a sturdy plastic tub over it to spread the load.
Yeah that's what I see. People use those large round bottom hanging plastic planters. Since they are round bottom, when placed over the antenna they form a dome. I have also seen laundry baskets and the plastic tubs. Here's it's usually the summer covers (winter we're out and about locally) so those thinner plastic items tend to get too soft, but in colder places, they should hold up very well.
1994 Itasca SunDancer 21RB - Chevy G-30 chassis.