Vented flashing versus non-vented

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Newbieblazeking

New Member
Nov 23, 2021
4
Kentucky
New install for blaze king 40. What is the benefit if any of having a vented flashing with 8 inch pipe? I have been waiting couple weeks to get this pice in and it came today but it is for a 6”. Customer service rep said they can ship me the correct one or I can cut the vented portion off and use that.

Vented flashing versus non-vented
 
I wouldn’t cut it. That flashing is certainly tested and listed as manufactured. If you cut it and the house burns down for any reason, that modified flashing could be a problem.
 
Agree with Highbeam about modifying anything, plus your storm collar will be closer to the roof.