Econoline floor bolt holes: fill or nah?
Hey Guys! So, I've been addressing some rust in the back of my van and I'm looking for advice. There are a dozen or so bolt holes that go through the bottom of the body that were used to hold some shelving for my van's previous life as a work truck. Do I fiberglass these over before putting in my flooring? I know there are other drain holes in the side panels as well, so there is no making this thing air-tight, but I don't want to ruin all the nice new stuff I'm about to put in here, either. Please let me know what you've done in this situation!
The cause of the rust seems to have been from the nature of the work the van did. I confirmed with the previous owner that the doors would sometimes be left open to complete work in the rain. So that's why I'm second-guessing this. I had planned to cover them, but I've also seen advice online saying your insulation needs to "breathe" in a van anyway because condensation is unavoidable.