634MRoof Cap in Black

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  • Maximize the air and sound performance of your Broan ventilation fan or range hood using one of our wide variety of ducting accessories.

    • Footprint is 18-3/4" long x 14-1/4" wide for a well-balanced fit
    • Designed to fit 6" round duct
    • A built-in, backdraft damper and bird screen provide a dependable roof cap you can count on
    • Roof cap is made of 24 gauge CRCQ steel construction with a black electrically-bonded epoxy finish for durability and long life
    • For use with Range Hoods, LoSone Fans and Bath Ventilation Fans
  • (5 Questions : 5 Answers)

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    Does this product work with 6" solid duct?

    I see the installation instructions only mention insulated flex duct.
    1 year, 9 months ago
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    Ian
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    Answer: 
    Thank you for your question on the 6” roof cap. Yes, this unit can be used with 6” rigid duct work.
    1 year, 8 months ago
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    are complaining of the high winds making the flap continually moving
    and sending the sound down through the range hood...what is your
    recommendation to correcting this issue?
    Age: 55-64
    Gender: Female
    8 months ago
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    JW
    Indiana, USA
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    Answer: 
    Thank you for your question on model 634M roof cap. If the 634M is installed properly and the back draft damper is seated properly, the air should not be able to blow it open. Please contact the Technical Service Department at 800-637-1453 for assistance.
    8 months ago
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    CAN A 634M BE USED ON A FLAT ROOF?

    6 months ago
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    TOM
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    Answer: 
    Thank you for your question on the model 634M roof cap. The 634M is designed to be used on a sloped roof. Please contact the Technical Service Department at 800-637-1453 for further assistance.
    6 months ago
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    This very important in particular in the winter with sub zero temperatures and high winds.
    Age: Over 65
    Gender: Male
    4 months ago
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    D
    Ontario, Canada
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    Answer: 
    The 634M does incorporate a "spring loaded" back draft damper, which is designed to prevent winds from coming back into the fan. Under normal circumstances, the product functions as it should. If you have further questions, please contact our Canadian facility at 888-882-7626.
    3 months, 4 weeks ago
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    Spring for this cap

    Where do I get the spring for this cap. The house I purchased has this cap mounted in a side wall, and I need a spring to keep the backdraft damper closed, as there is about a 1" gap all the time. I am having a problem with the wind pushing down the pipe to the range hood. This causes frost on the pipe which later melts on to the stove.
    Age: Over 65
    Gender: Male
    1 month, 1 week ago
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    Iowa, USA
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    Answer: 
    Thank you for your question on the model 634M roof cap. The 634M is a roof cap and has a built-in gravity damper. This unit is designed to be installed on a roof and not on a wall. There is no spring for this unit.
    1 month, 1 week ago
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