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03-28-2012, 04:03 AM #1
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How Many Ways Can You Disrespect a B Vent?
In this case, three times, all within 10 feet of one another. This was in a townhome with a 3rd floor finished room and spray foam insulation applied to the underside of the roof framing and decking.
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"It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey
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03-28-2012, 09:29 AM #2
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Re: How Many Ways Can You Disrespect a B Vent?
Open or closed cell?
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03-28-2012, 02:20 PM #3
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Re: How Many Ways Can You Disrespect a B Vent?
Closed cell I believe. I don't get to see this application too much where I live.
"It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey
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04-02-2012, 12:59 PM #4
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Re: How Many Ways Can You Disrespect a B Vent?
I can add a few Nick but good pick up:
-B-vent exposed in living space instead of boxed in
-no listed firestop/ spacer at second floor ceiling
-no support for lower elbow
-no support for vertical pipe from attic through roof
-no insulation shield in attic
Keep the fire in the fireplace.
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04-02-2012, 03:13 PM #5
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- Spring City/Surrounding Philadelphia area
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Re: How Many Ways Can You Disrespect a B Vent?
I don't think many installers around here know what a listed firestop/spacer is. 99% of the ones I see are sheet metal that have been cut on-site.
"It takes a big man to cry. It takes an even bigger man to laugh at that man". - Jack Handey
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