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  1. #1
    Join Date
    Mar 2007
    Location
    Spring City/Surrounding Philadelphia area
    Posts
    3,473

    Default 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

  2. #2
    Join Date
    Jul 2007
    Location
    Chicago
    Posts
    930

    Default Re: How Many Ways Can You Disrespect a B Vent?

    Open or closed cell?


  3. #3
    Join Date
    Mar 2007
    Location
    Spring City/Surrounding Philadelphia area
    Posts
    3,473

    Default 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

  4. #4
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,643

    Cool 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.

  5. #5
    Join Date
    Mar 2007
    Location
    Spring City/Surrounding Philadelphia area
    Posts
    3,473

    Default 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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