Through the roof!! Of a Mobile home

Two months ago I placed an order for an Everio Mini for my flat roof mobile home and received it twos week later. Today I am tiring to figure out how to install the smoke pipe and decided to go though the ceiling. At times it's windy as hell, draft could be a major issue. What I am tiring to figure out is how does the smoke pipe go though one of those ceiling suppport inserts? Does the piping connect to it at each end or does a length of pipe slides through and held with a clamp? Any additional advice would help as well. I have done HVAC installs in the past so I am experienced "installer"

Thanks

The pellet pipe we use just goes right though and inside the ceiling box you convert over to silver pipe for outside.

I edited my first post, cleared some things up.

That's not an issue, park owner is over looking my install as I am going to be the first in the park. Long time ago she rembemers a home burn down when she was a kid do to a wood stove. The remains of it is in the field. So it's doting I's and crossing T's on this project.