Thanks L! I wish I got more BBs while setting the workshop up :(
I added some more notes to that submission. You can see where the screws went in in the "rounded edge" photo. The bottom is also screwed on but that's to hold it on, not to hold the staves together. And yes, this "bucket" isn't meant to be water tight. It just has to hold grains of rice while we dance on them to dehull them.
In my bathroom I didn't have an exhaust fan. I fixed that. I posted the inside install as the Electrical bit for Install a Light Fixture.
I started outside
I started with a battery powered drill first. LOL. This worked much better.
I used a hammer and junk bolt to persuade some chunks out.
That let me extend a drill bit all the way through the insulation in the attic. I finished up from in there.
I thought the self tapping screws that I had, which said they are good for masonry would work here. They did not and I didn't have a masonry drill bit that size. So, leftover sealer it is.
Up in the attic installing the duct.
This light is going away.
In the attic that light is in an uncomfortable place. It involved balancing on my stomach across some beams.
I marked the spot for the box and used a oscillating tool to cut the ceiling.