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  1. #1
    Randy Vroon's Avatar
    Randy Vroon Guest

    Default Are Lintels needed for venting thru brick wall?

    In a residential attached-garage environment, I am installing air intake and stale air exhaust venting. The exterior wall is brick.
    Question: Will I need to install any Lintels above the vents noted below?
    • The Air Intake hooded vent has approximately 11" x 11" opening. It will have only 4 or 5 rows of brick above it. Vent is at about the 9-foot level.
    • The stale air exhaust vent is a 9-inch diameter pipe with 12" x 12" hood. The exhaust vent location will have approx. 20-feet of brick rows above it. Vent is at about the 11-foot level


    With a short opening span of less than 1 foot, will the overhead brick wall be suitably supported within itself without needing extra reinforcement using a lintel?

    Thankyou

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  2. #2
    James Duffin's Avatar
    James Duffin Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    R606.10 Lintels. Masonry over openings shall be supported
    by steel lintels, reinforced concrete or masonry lintels or
    masonry arches, designed to support load imposed.


    I don't see any exceptions listed so I would say yes to your question. It would be a small lintel though.



  3. #3
    Elliot Franson's Avatar
    Elliot Franson Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    Quote Originally Posted by Randy Vroon View Post
    In a residential attached-garage environment, I am installing air intake and stale air exhaust venting. The exterior wall is brick.
    Question: Will I need to install any Lintels above the vents noted below?
    • The Air Intake hooded vent has approximately 11" x 11" opening. It will have only 4 or 5 rows of brick above it. Vent is at about the 9-foot level.
    • The stale air exhaust vent is a 9-inch diameter pipe with 12" x 12" hood. The exhaust vent location will have approx. 20-feet of brick rows above it. Vent is at about the 11-foot level
    With a short opening span of less than 1 foot, will the overhead brick wall be suitably supported within itself without needing extra reinforcement using a lintel?

    Thankyou
    Mr. Vroon: A lintel should not be required in this instance.


  4. #4
    Join Date
    Feb 2008
    Location
    Chicago IL
    Posts
    1,984

    Default Re: Are Lintels needed for venting thru brick wall?

    Since we don't know the particular construction and condition of your walls, you should probably install lintels just to be safe.
    On the other hand, we just to knock out these holes, semi-round as possilbe, parg the inside of the hole and finish the install.
    Never had any movement or call back.

    www.aic-chicago.com
    773/844-4AIC
    "The Code is not a ceiling to reach but a floor to work up from"

  5. #5
    Elliot Franson's Avatar
    Elliot Franson Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    On the other hand, we just to knock out these holes, semi-round as possilbe, parg the inside of the hole and finish the install.
    Never had any movement or call back.
    Mr. Keller: That is how it is done here too.


  6. #6
    David Bell's Avatar
    David Bell Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    Much would depend on your method of opening these holes. Core boring the round and saw cutting the square one should alleviate the need for support, while chiseling of any kind may loosen up bricks you didn't want to remove.


  7. #7
    Elliot Franson's Avatar
    Elliot Franson Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    Befpre Mr. Peck, Watson, et al. chime in with the inherent dangers of cutting an 11" square in brick veneer, you might also consider adding wall ties around the perimeter of the opening. I would not, but you might.

    HELI-TIE ™ Helical Wall Tie ~ Simpson Strong-Tie Anchor SystemsŪ


  8. #8
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,252

    Default Re: Are Lintels needed for venting thru brick wall?

    Openings versus holes.

    Would you need a lintel over a hole for a 1/2" conduit, even if PVC? No.

    Would you need a lintel over a 2' wide opening? Yes.

    Would you need a lintel over a 2' diameter hole? Probably not. A round hole has supporting strength built in while a square or rectangular opening would not have that support built in.

    Also, if the hole was round and suspect of not being strong enough, simply cut a short piece of Sch 40 steel pipe and line the hole with it.

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

  9. #9
    Randy Vroon's Avatar
    Randy Vroon Guest

    Default Re: Are Lintels needed for venting thru brick wall?

    Thankyou all for the timely and helpful feedback. A great resource team!
    Best Regards,


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