Results 1 to 6 of 6
  1. #1
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,769

    Default Vent through attic

    Odd installation. This image is taken from the attic, first floor. The vent is about 10" from the top of the box where it enteres the roof deck, where a firestop is installed. IMO, this should be an enclosed chase or a firestop should be in place at this ceiling height.
    What say you?

    Similar Threads:
    ***IMPORTANT*** You Need To Register To View Images ***IMPORTANT*** You Need To Register To View Images
    Member Benefits1
    The MAZZA INSPECTION GROUP
    www.mazzainspections.com
    Level III Thermo-picture-taker-er...er

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: Vent through attic

    Quote Originally Posted by Marc M View Post
    IMO, this should be an enclosed chase ...
    Chase is not needed or required.

    ... or a firestop should be in place at this ceiling height.
    The vent is required to be fireblocked at the ceiling and floor levels, whether or not it was in a chase.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,769

    Default Re: Vent through attic


    R1003.19 Chimney fireblocking

    All spaces between chimneys and floors and ceilings through which chimneys pass shall be fireblocked with noncombustible material securely fastened in place.

    I was suggesting the chase because it's blocked at the roof which is approx 10' from the top of the box. If the vent was fireblocked I.E. chase, the metal stop at the roof would meet the minimum standard. Yes?



    The MAZZA INSPECTION GROUP
    www.mazzainspections.com
    Level III Thermo-picture-taker-er...er

  4. #4
    Join Date
    Apr 2008
    Location
    Western Massachusetts
    Posts
    536

    Default Re: Vent through attic

    Are you designing a repair or calling out a defect?


  5. #5
    Join Date
    Mar 2007
    Location
    Near Philly, Pa.
    Posts
    1,643

    Cool Re: Vent through attic

    R1003 is for masonry chimneys. This is a factory built chimney. R602.8 and thus R302.11 are your reference under the 2009 IRC. Before this, wasn't Calif under the UMC, which called for vertical fireblocking?

    Keep the fire in the fireplace.

  6. #6
    Join Date
    Sep 2008
    Location
    so so, California
    Posts
    1,769

    Default Re: Vent through attic

    Quote Originally Posted by Bob Harper View Post
    R1003 is for masonry chimneys. This is a factory built chimney. R602.8 and thus R302.11 are your reference under the 2009 IRC. Before this, wasn't Calif under the UMC, which called for vertical fireblocking?
    That's the case in my Jurisdiction, until next month then they go IRC.
    I hate questioning my knowledge but when you see somethig like this house in a house that was just built and issued a COO, you start to wonder... so I was just questioning how come this was considered acceptable by the AHJ actually.

    The MAZZA INSPECTION GROUP
    www.mazzainspections.com
    Level III Thermo-picture-taker-er...er

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •