b-vent flashing question

[isaac338]

When installing flashing over b-vent, do you seal the pipe to the flashing with silicone, and then seal the storm collar separately, or do you leave the gap between the pipe and flashing and just steal the storm collar?

Thanks!

 

[HVAC Phil]

I seal them both, never had a leak.

 

[csp]

Yep, seal them both.