This kit does not come with the 3" pipe needed. It is only the items required to exit the 3" pipe out the roof. You will need enough 3" double wall flue pipe to go from where the top of the stove will be, and go to the same one foot mark above the roof that the 5" insulated pipe will be.
This kit is to exit the pipe out a shingled roofs with a pitch up to 45 degrees.
The kit includes;
You may need additional insulated pipe depending on your unique install.