Metal roof boot for B-vent

So what is the consensus for B-vent pipe boots on metal roofs - the standard metal or a Dektite type metal roof flashing boot? Thanks in advance.


Flashing in the pic looks OK, installed in a way that should shed water, but the height of the B vent is a problem if that is a wall directly behind it.
As far as which type is preferred, the quality of the installation is more important than the material IMO, there are many more ways to it wrong than right :slight_smile:

The flashing will be a maintenance issue as far as installing and checking the sealant. The B vent does not clear the dormer? by 2 ft and should be replaced. What’s with the flashing at the head wall?