Michael Thomas
01-01-2009, 06:22 AM
My understanding is that you cannot not field fabricate firestops or other passages through ceilings for b-vent - that you have to use a UL listed component:
http://paragoninspects.com/images/hvac/venting/bvent/firestopullisted.jpg
Someone recently directed me here:
http://www.energystar.gov/ia/partners/publications/pubdocs/DIY_Guide_May_2008.pdf
see Fig 1.8.
Are you now allowed you do this (field fabricate and caulk directly to the b-vent)???
http://paragoninspects.com/images/hvac/venting/bvent/firestopullisted.jpg
Someone recently directed me here:
http://www.energystar.gov/ia/partners/publications/pubdocs/DIY_Guide_May_2008.pdf
see Fig 1.8.
Are you now allowed you do this (field fabricate and caulk directly to the b-vent)???