Got it done today. Well...done except for the fact that I ordered the wrong cover for it - and if I had paid attention I would have noticed that the cover that I did buy had a piece of paper taped to it that said that it was specifically *not* for the MaxxFan that I bought at the same time.
That was almost 8 months ago though, so I suspect that I am outside of Amazon's return window.....
So, now I will order the correct one.
The install went mostly as expected. I have a pile of these cool little nylon scrapers that I use in my work. They are made for picking the edges of car wraps when removing the wrap - without scratching the paint. They work really well for separating Dicor from the roof membrane. They are stiff enough to scrape with, but not sharp enough to cut the membrane. And if you get too spunky with them, they just break.
I *hate* butyl tape. It's like being attacked by a snot monster. Sticks to *everything*. Trying to get it off of my gloves reminds me of the videos of cats trying to walk with tape on their paws. Or like a toddler trying to get a booger off of their finger. Stuff works, but I hate it.
I put the outer part down on two layers of butyl with the corner joints lapped, then put 4 inch Eternabond over all of the screw heads and onto the roof all the way around. I'll give it a couple of days to set & then flood it with Dicor too.
As mentioned above, there was not dedicated power in the vent opening, just two 12v wires going to puck lights on two different circuits. I spliced into the lights over the bed, and the fan can only be on when that switch is on. I reckon we can get used to that.
I'm glad I decided to do it, because even though the old sealant looked good, and there was no evidence of leaking inside, several of the screws holding the old vent in place had rust on their threads.
Another project checked off the list! I try really hard to turn every repair into an upgrade.
