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
  • Rated 4.6 out of 5 by 11 reviewers.
    Rated 5 out of 5 by Great quality roof vent This is a solidly built vent and not one that you can generally find at the Big Box stores. So order it online so you have it. I like that it is black and has a 6" dia sleeve which you can attach your vent pipe or ducting to. Not all vents have the circular sleeve. I have used this unit several times. Good quality at a fair price! January 19, 2015
    Rated 3 out of 5 by first experience with this type of product Item seems to be well made but was disappointed with packaging. The roof cap's flange was bent. No big deal but if it had been the top of the cap it would have been useless. This cap is connected to an in-line exhaust fan with 2 exhaust vents. It was pretty easy to install. The reason for the 3 star rating is that right now the wind is blowing 35-40mph and it's picking up the damper and letting wind in and is causing the built in dampers in the duct boxes to rattle, which is very aggravating. Being my first use of such product, I don't know if this is a common problem. Hope the wind dies down soon. Other than that I'm satisfied with product. January 29, 2013
    Rated 5 out of 5 by FAST SHIPPING The fact that I needed this product in a pinch, they had it to me in two days and it is an excellent product. September 7, 2011
    Rated 5 out of 5 by Works Perfect This item was exactly what I was looking for to vent out my exhaust hood over my cooktop. Works perfect. July 25, 2011
    Rated 4 out of 5 by Good...but could be better First I'd like to highly recommend VentingDirect.com because my order was processed and sitting at my door within two days. Overall I'm pleased with the vent, however the vent flap does not seal properly on all sides and is basically useless. This is because the vent flap metal is very thin and has a curve in it which does not permit a good seal. I added extra gasket material on the sides of the frame that help, but the only real fix is to use a heavier gauge steel or plastic material that does not curve. I painted the vent to match my tan colored roof and it came out looking great. The inside collar is short, but it does work unless you have a very thick roof penetration area. Overall I'm happy with the vent, but the flap & seal design was a disappointment on an otherwise quality built product. June 19, 2011
    Rated 5 out of 5 by Dust Roof Cap The dust roof cap is great. Easy to install, no additional parts were need. Completely satisfied with product. Shipping was at the speed of light. I never expected to receive this as quickly as we did. Wonderful experience all the way around. Thanks so much. December 13, 2010
    Rated 4 out of 5 by well built I originally ordered this to use with a bath vent, but after the bath vent turned out to be smaller than advertised, I used it for my new range hood. It's a simple design and the screen is easily removable. I believe the damper is also replaceable if it were to be damaged. It could be improved if there were to be some sort of noise damping to keep the sound of rain from conducting into the kitchen. I'll probably solve that with a coat of rubber or something next summer. November 21, 2010
    Rated 5 out of 5 by Quick and easy solution for terminating vertical duct from range hood. Simple installation with clear instructions. Nice look on the roof. August 2, 2010
    • 2015-08-30T06:56:28.600-05:00
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  • (9 Questions : 9 Answers)

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    Does this product work with 6" solid duct?

    I see the installation instructions only mention insulated flex duct.
    2 years, 5 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.
    2 years, 5 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
    1 year, 4 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.
    1 year, 4 months ago
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    CAN A 634M BE USED ON A FLAT ROOF?

    1 year, 3 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.
    1 year, 3 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
    1 year 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.
    1 year 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
    9 months 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.
    9 months ago
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    • 2015-08-30T06:59:35.903-05:00
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    • 2015-08-30T06:59:35.906-05:00
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