Almost finished now. The exhaust for the smoker is finally installed. The stack runs through the utility closet and up through the roof. I haven't yet tested it, but I think it should draw better than ever.
View from inside the closet.
Just for completeness, the roof part with the cap. (Yup, pretty standard)
I'll get a chance to see how useable the space really is on the 4th. We're having a fair number of folks over for a BBQ.
Thanks for looking, and happy 4th to all.