Loyalty Rewards

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

Item# RDP-BKX
(74 customer reviews)
Sale!

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

Item# RDP-BKX
(74 customer reviews)

$41.95$114.95

Please select all options before adding to cart.

Total Price:

Want $10 off Your Next Order?

x

Free
Free

Estimated Delivery:
Feb-11  -  Feb-18

Features + Benefits

  • Designed to use with bathroom and kitchen exhaust venting systems
  • Includes a damper to prevent back draft, and also with a screen to keep out insects and birds
  • Comes in a variety of sizes to fit pipes ranging from 4-inch up to 10-inch diameter

Product Summary

The RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension is designed to use with bathroom and kitchen exhaust venting systems. This is a roof mounted vent cap that comes with a damper to prevent back draft, and also with a screen to keep out insects and birds. This product is made with heavy 28 gauge galvanized steel.  The RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension also comes in a variety of sizes to fit pipes ranging from 4-inch up to 10-inch diameter. This product is made with a bottom extension. This product is also available without the bottom extension here.

RoofingDirect.com offers an excellent selection of exhaust vents made of high quality materials for your next job. Our team has decades of industry experience and is ready to serve you. Please contact us, and we will be happy to answer any questions.


Features + Benefits

  • Designed to use with bathroom and kitchen exhaust venting systems
  • Includes a damper to prevent back draft, and also with a screen to keep out insects and birds
  • Comes in a variety of sizes to fit pipes ranging from 4-inch up to 10-inch diameter

Item #RDP-BKX
BrandRDP
Warranty
Weight5 lbs
MaterialHeavy Gauge Painted Steel

Product Question + Answer

    Does the flapper fit snug enough to keep out flying ants?
  1. 0 votes
    Q Does the flapper fit snug enough to keep out flying ants?
    Asked on August 14, 2022 2:42 pm
    A

    yes, the damper sits on a seal that prevents anything from coming in.

  2. Can you describe the damper? Is it just sheet metal that depends on gravity or is there a spring? Also, is it riveted or welded assembly?
  3. 0 votes
    Q Can you describe the damper? Is it just sheet metal that depends on gravity or is there a spring?…… Read more
    Asked on April 1, 2022 7:52 am
    A

    The RDP Rooftop Exhaust Vent Cap features a riveted damper that relies on gravity to close. 

  4. Currently have slant back roof vent on 4×12 pitch roof. Ice builds up and moisture backs up and flows down into ceiling. How many inches off the roof before the bottom of the vent the roof top exhaust vent cap with damper? Any suggested products to solve leak problem? Thank you.
  5. 0 votes
    Q Currently have slant back roof vent on 4×12 pitch roof. Ice builds up and moisture backs up and f…… Read more
    Asked on March 19, 2022 11:22 am
    A

    It varies depending on the size of the vent, but it ranges from 1 3/4″ to 3 1/8″.

  6. is the damper spring loaded or gravity style?
  7. 0 votes
    Q is the damper spring loaded or gravity style?
    Asked on March 18, 2022 11:00 am
    A

    The RDP Rooftop Exhaust Vent Cap has a gravity style damper.

  8. what size hole saw for a 4 inch
  9. 0 votes
    Q what size hole saw for a 4 inch
    Asked on March 16, 2022 3:51 pm
    A

    The 4″ RDP Rooftop Exhaust Vent has a 4″ diameter for the bottom extension.

  10. Is there a way to put 2 vent fans into one roof vent?
  11. 0 votes
    Q Is there a way to put 2 vent fans into one roof vent?
    Asked on March 16, 2022 3:31 am
    A

    That is possible, as long as it does not exceed the CFM range.

  12. Can this be used on metal roof?
  13. 0 votes
    Q Can this be used on metal roof?
    Asked on February 26, 2022 10:30 am
    A

    The RDP Rooftop Exhaust Vent Cap cannot be used on metal roofs. It is designed for shingle roofs.

  14. Can the 8” exhaust vent cap push through 900 CFM?
  15. 0 votes
    Q Can the 8” exhaust vent cap push through 900 CFM?
    Asked on February 5, 2022 2:20 pm
    A

    The RDP Rooftop Exhaust Vent Cap – 8 inch, can safely be used with up to 800 CFMs. We recommend going one size up to the 10 inch model, which can handle up to 1000 CFMs.

  16. Is there a 12in version of this? Or a similar one that can accept a 12in duct for a forced air application.
  17. 0 votes
    Q Is there a 12in version of this? Or a similar one that can accept a 12in duct for a forced air ap…… Read more
    Asked on November 16, 2021 9:31 pm
    A

    Unfortunately, the largest size available is 10″.

  18. Definitely won’t work with a 1200 cfm hood??? Are you sure?
  19. 0 votes
    Q Definitely won’t work with a 1200 cfm hood??? Are you sure?
    Asked on November 2, 2021 2:28 pm
    A

    Yes, the 10″ version of this product can handle approximately 1200 CFMs.

  20. The screen fell out before I got it out of the box. How do I make sure the screen stays in place?
  21. 0 votes
    Q The screen fell out before I got it out of the box. How do I make sure the screen stays in place?
    Asked on September 11, 2021 12:06 am
    A

    The screen is pressure fitted with the folded screen on the bottom and the lip on the top side of the hood. Once it is there it should stay in place when installed on the roof. Sometimes they fall out during the shipping process because they are bumped too hard.

  22. what is base size if 6 inch round exhaust vent
  23. 0 votes
    Q what is base size if 6 inch round exhaust vent
    Asked on September 7, 2021 2:14 pm
    A

    The base size for a 6″ vent cap would be 16″ x 16″.

  24. Will the 8 inch model handle and exhuast fan rated at 1000 CFM?
  25. 0 votes
    Q Will the 8 inch model handle and exhuast fan rated at 1000 CFM?
    Asked on August 26, 2021 11:48 am
    A

    This 8″ exhaust vent cap can push through 1000 CFM in shorter bursts. If you are planning on consistently pushing 1000 CFM we recommend the 10″ model.

  26. I am replacing another styled vent which leaked. I will not know if I need the bottom extension until I remove the old vent. Can the extension be removed on site if I don’t need it?
  27. 0 votes
    Q I am replacing another styled vent which leaked. I will not know if I need the bottom extension u…… Read more
    Asked on August 14, 2021 8:40 am
    A The extension is welded onto the base of the vent. We would recommend that you inspect your existing vent before ordering the replacement.
  28. do you have this cap to fit on metal roofing, the soft metal edge that goes over the ridges and is screwed down to the metal. I know I have seen them.
  29. 0 votes
    Q do you have this cap to fit on metal roofing, the soft metal edge that goes over the ridges and i…… Read more
    Asked on August 9, 2021 7:02 pm
    A

    Hello, thanks for your inquiry. Unfortunately we do not currently carry the product you are describing.

  30. Can this product be used on a sloped barrel tile style roof for a kitchen exhaust vent?
  31. 0 votes
    Q Can this product be used on a sloped barrel tile style roof for a kitchen exhaust vent?
    Asked on June 29, 2021 12:37 pm
    A

    Unfortunately, this Rooftop Exhaust Vent Cap is only used for asphalt shingle roofs.

  32. How does the screen attach to the vent?
  33. 0 votes
    Q How does the screen attach to the vent?
    Asked on June 1, 2021 6:04 pm
    A

    The screen is pressure fitted on to the lip on the vents opening.

  34. How many CFMs will the 10″ round vent support? I have a 1200 CFM hoot vent.
  35. 0 votes
    Q How many CFMs will the 10″ round vent support? I have a 1200 CFM hoot vent.
    Asked on June 1, 2021 4:44 pm
    A

    This 10″ exhaust vent cap is recommended for use up to 1200 CFM.

  36. I have 8″ ductwork. Will the opening 8″ vent cap version opening appropriately allow venting for a 600 CFM range vent?
  37. 0 votes
    Q I have 8″ ductwork. Will the opening 8″ vent cap version opening appropriately allow venting for …… Read more
    Asked on May 30, 2021 2:52 pm
    A

    Yes, this ” vent allows the appropriate venting for 600 CFM.

  38. Can I request a 2 day delivery window? I am not at the delivery sight, and need the vent there for a new roof installation
  39. 0 votes
    Q Can I request a 2 day delivery window? I am not at the delivery sight, and need the vent there fo…… Read more
    Asked on May 29, 2021 11:13 am
    A

    Yes, we can expedite orders. Please call us at (855)-670-7663 and we can provide further assistance.

  40. Is this product meant for use on a flat roof with no slope?
  41. 0 votes
    Q Is this product meant for use on a flat roof with no slope?
    Asked on March 3, 2021 9:50 am
    A

    This product is designed for pitched roofs ranging from 3/12 to 9/12 pitch. Unfortunately, it would not work on a flat roof.

  42. What are the overall base flange width dimensions for a 10” vent?
  43. 0 votes
    Q What are the overall base flange width dimensions for a 10” vent?
    Asked on January 24, 2021 8:36 pm
    A

    The base dimension is 24″ x 24″ for the 10″ model.

  44. what gauge is considered heavy duty ? … What are the dimensions that of the over lay around the vent
  45. 0 votes
    Q what gauge is considered heavy duty ? … What are the dimensions that of the over lay around the…… Read more
    Asked on January 23, 2021 9:18 am
    A

    This exhaust vent is made from 28 gauge steel. The base dimensions vary depending on the size of the vent. Please refer to the product PDF manual for more information. 

  46. do you sell 10″ metal duct I need about 3 feet
  47. 0 votes
    Q do you sell 10″ metal duct I need about 3 feet
    Asked on October 4, 2020 8:53 am
    A

    I am sorry, but we do not sell the metal duct work. I believe you might be able to get this at Home Depot or Lowes.  Good luck with your project. 

Send me a notification for each new answer.

Product Summary

The RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension is designed to use with bathroom and kitchen exhaust venting systems. This is a roof mounted vent cap that comes with a damper to prevent back draft, and also with a screen to keep out insects and birds. This product is made with heavy 28 gauge galvanized steel.  The RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension also comes in a variety of sizes to fit pipes ranging from 4-inch up to 10-inch diameter. This product is made with a bottom extension. This product is also available without the bottom extension here.

RoofingDirect.com offers an excellent selection of exhaust vents made of high quality materials for your next job. Our team has decades of industry experience and is ready to serve you. Please contact us, and we will be happy to answer any questions.


Features + Benefits

  • Designed to use with bathroom and kitchen exhaust venting systems
  • Includes a damper to prevent back draft, and also with a screen to keep out insects and birds
  • Comes in a variety of sizes to fit pipes ranging from 4-inch up to 10-inch diameter

Specs

Item #RDP-BKX
BrandRDP
Warranty
Weight5 lbs
MaterialHeavy Gauge Painted Steel

74 reviews for RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

  1. Edgar Sanchez (verified customer)

    Verified reviewVerified review - view originalExternal link

    Great product!

    • Aaron (store manager)

      Edgar, thanks for the review. This is a very well built exhaust cap. We have a lot of contractors that also like using this product.

  2. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    Definitely order in advance it takes about 2 weeks to get it. Great product though very pleased

    • AM (store manager)

      Thank you for the feedback. We are working hard with our suppliers on getting products delivered as quickly as possible. Hopefully as business gets back to a normal state, the lead time on this product will improve. Thanks again for your business.

  3. Kevin (verified customer)

    Verified reviewVerified review - view originalExternal link

    Good fast free shipping packed well slight bend on flapper easily fixed. Ordered 6 inch pipe inlet measurement was 5 7/8 as mentioned in specs should have like it to be 6 inch even. looks great on roof
    Overall very pleased

    • AM (store manager)

      Hi Kevin, thanks for your order. Sorry about the bend on the flapper. I’ll double check with our warehouse and make sure they are doing everything possible to over-package these. Glad it turned out well and looks great on the roof.

  4. BERNARD N. (verified customer)

    Verified reviewVerified review - view originalExternal link

    • AM (store manager)

      Hi Bernard, thanks for the review. We appreciate you doing business with us. This FAMCO Vent Cap is a great product, that is one of our top movers.

  5. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

  6. David C. (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for reviewing the FAMCO Exhaust Vent Cap. We look forward to serving you again in the future.

  7. william (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thank you for the 5 star review, William!

  8. Nancy A. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Exactly what I needed. High quality roof vent.

    • CL (store manager)

      We’re super happy to hear that. Thanks for your review!

  9. Corey suire (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thank you for the 5 star review, Corey!

  10. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    fast delivery

    • CL (store manager)

      Thanks for reviewing the Rooftop Exhaust Vent!

  11. Anna S. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Service was extremely accommodating, would highly recommend based on service alone and their pricing is very competitive. Great experience!

    • CL (store manager)

      Hi Anna, thank you for your review. We appreciate your business!

  12. Hector Miranda (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CB

      Thanks for the 5 star review!

  13. Thomas Pereira (verified customer)

    Verified reviewVerified review - view originalExternal link

    Good wuality

    • CB

      We agree! 🙂 Thank you for your review.

  14. Jerry (verified customer)

    Verified reviewVerified review - view originalExternal link

    Good quality and sent as promised.

    • CB

      Great to hear, thanks for your review!

  15. David Smart (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for reviewing the exhaust vent with extension!

  16. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for reviewing the exhaust vent. We appreciate your business!

  17. Michael Gattarello (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for your review of the Rooftop Exhaust Vent. We appreciate your business!

  18. Bruce (verified customer)

    Verified reviewVerified review - view originalExternal link

    Very well made! Very pleased with the purchase!

    • CL (store manager)

      We are glad you’re satisfied with your purchase. Thanks for the review! 🙂

  19. Donald Shaut (verified customer)

    Verified reviewVerified review - view originalExternal link

    Excellent

    • CB

      Great to hear, thanks!

  20. Edward (verified customer)

    Verified reviewVerified review - view originalExternal link

    Received in perfect condition, well built roof vent.

    • CB

      Thank you, we appreciate your business and the review.

  21. vincent catanzaro (verified customer)

    Verified reviewVerified review - view originalExternal link

    The quality of product an packing was took notch

    • CB

      Great to hear, thanks for your review!

  22. John Bonacci (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CB

      👍

  23. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    Fast shipping and the vent worked prefect

    • CB

      That’s what we like to hear, thanks for sharing!

  24. Don S. (verified customer)

    Verified reviewVerified review - view originalExternal link

    easy to install, sturdy cap

    • CB

      Great to hear! Thanks for your review 🙂

  25. Michael F. (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CB

      Thanks for the 5 star review 👍

  26. Lynn T. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Nice design. The Broan roof cap leaked in deep snow after a 3″ ice dam built up. This one is high enough, no dam!

    • CB

      We’re glad this product meets your needs, thank you for your review!

  27. Garry (verified customer)

    Verified reviewVerified review - view originalExternal link

    Well built, should work well

    • CB

      We appreciate your business, thanks for your review.

  28. James (verified customer)

    Verified reviewVerified review - view originalExternal link

    Wish it was black but a nice product

    • CB

      Thanks for your review and 5 stars. This item is available in galvanized, black and brown through the Color drop down.

  29. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for the 5 star review! 🙂

  30. Stan (verified customer)

    Verified reviewVerified review - view originalExternal link

    Unfortunately it doesn’t meet Florida code and it would cost to much to return with shipping and a restocking fee so I will eat it.

    • CB

      We’re sorry this item doesn’t meet Florida code and won’t work for your application. This is our standard return policy, however, we understand you won’t be returning your order due to the restocking fee. Thank you for your business and please let us know if we can help with anything else.

  31. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    Instant gratification. Thanks.

    • CB

      Great to hear, thanks for the review and 5 stars!

  32. Gary (verified customer)

    Verified reviewVerified review - view originalExternal link

    Great product/fast shipping!

    • CL (store manager)

      That’s what we love to hear. Thanks for your review!

  33. Robert Coker (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CL (store manager)

      Thanks for your 5 star review!

  34. Samuel (verified customer)

    Verified reviewVerified review - view originalExternal link

    Perfect. Respectable design and quality. Just what I needed. Priced right. Easy ordering. Very timely delivery.

    • CL (store manager)

      Hi Samuel, we appreciate your review! Please let us know if we can help with anything else in the future.

  35. tim (verified customer)

    Verified reviewVerified review - view originalExternal link

    Minor damage to the 10 inch roof cap as shown in the pic.

    Cheap flimsy damper with a small riveted hinge at the back. There is a nice rubber seal, but this like all other roof caps looks like it will blow in the wind and be noisy. I intentionally chose a roof cap without a spring as this causes back pressure on the hood vent.

    The bird/bug screen fell out multiple times, upon arrival and when performing install. It is held in place by tension reasonable well if undisturbed, but may require being checked periodically.

    I hope that all joints are seam welded, as shown in one pic there is an easy opportunity for water to enter. I would like a response from roofing direct on this bad design feature, as I believe this flap should have been installed on the inside, not outside as shown. I will hose test and if I see a leak I will need to apply roof cement, and make this vent ugly.

    Image #1 from tim
    Image #2 from tim
    Image #3 from tim
    • CL (store manager)

      Hi Tim, thank you for reviewing the rooftop exhaust vent cap. This product has been designed and tested to ensure its waterproofness. If after your test you do notice any kind of leak, we would be happy to replace it free of charge. If you have any other concerns or questions regarding this product please let us know!

  36. Robert A Johnson (verified customer)

    Verified reviewVerified review - view originalExternal link

    It seam cheap. How will the screen stay in place? The sceen fell out before I got it out of the box.

    • CP (store manager)

      Robert,
      So sorry that the product you ordered wasn’t up to your standards. The screen on the vent is pressure fitted and can fall out in transit. This should be able to snap right back into the vent easily. If you have any questions, please contact us at [email protected].

  37. Jason S. (verified customer)

    Verified reviewVerified review - view originalExternal link

    I have searched for this project at various online outlets and found varying degrees of prices and quality. This product is built solid, had free shipping and delivery tracking. I will also add that the product was packaged with care. Excellent company! Thank you

    • CP (store manager)

      Jason,
      Thank you so much for your wonderful review! So glad that this product met your price and quality that you were looking for.

  38. Bryan P. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Great product works well and worth the price.

    • CP (store manager)

      Thank you Bryan for your wonderful review! Glad that the product works well and worth the price!

  39. Liliana Urem (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CP (store manager)

      Liliana, thank you for your review!

  40. Robert A. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Quality product and shipped on time.

    • CP (store manager)

      Robert, thank you for your review!

  41. Kevin M. (verified customer)

    Verified reviewVerified review - view originalExternal link

    It fit perfectly. It was exactly what I was looking for.

    • CL (store manager)

      Awesome! We are excited to hear that. Thanks for the review 🙂

  42. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    Well made and shipped with lots of protection.

    • CL (store manager)

      Thank you for reviewing your purchase with us!

  43. Tony Smith (verified customer)

    Verified reviewVerified review - view originalExternal link

  44. Randy Kathol (verified customer)

    Verified reviewVerified review - view originalExternal link

  45. Richard U. (verified customer)

    Verified reviewVerified review - view originalExternal link

    Good Quality Vent

    • CL (store manager)

      Thanks for your 5 star review!

  46. Brian (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CB

      Thank you for leaving 5 stars on the rooftop exhaust vent with damper & bottom extension. We appreciate your business.

  47. Daniel (verified customer)

    Verified reviewVerified review - view originalExternal link

    Great product…delivered right on time!…roofer installed while shingling…perfect!!

    • CB

      Great to hear! We appreciate your business.

  48. Benjamin Bukata,Jr (verified customer)

    Verified reviewVerified review - view originalExternal link

    Not as heavy a metal as I thought. Only 28 gauge…I was expecting 26 gauge but works well.

    • CB

      Thank you for the review. We’ve updated the description to include the gauge size for our exhaust vent caps.

  49. Roger Dawson (verified customer)

    Verified reviewVerified review - view originalExternal link

    The unit comes with a screen that arrived detached with no instructions on how to reattach it. I had to examine a close-up of the unit to figure it out. There should be a one-sheet included about how the removable screen works.

    As I had warned, the FedEx home delivery service was horrible! I was notified of a new delivery date that did not happen then FedEx said it would arrive the next day which also did not happen this occurred for 4 days and it was only after I requested and initiated a tracking case that I received the unit on Tuesday for what was a promised Saturday delivery! An upgrade of FedEx service by RoofingDirect is required to address this issue or better yet switch to UPS service as I had recommended.

    • CL (store manager)

      Hi Roger, thank you for letting us know about the screen. We apologize for the delay caused by the carrier and are glad to hear that your order arrived safely. Please let us know if we can help with anything else!

  50. Anonymous (verified customer)

    Verified reviewVerified review - view originalExternal link

    The vent cap came nicely. The only thing I think this company should work on is sending out a shipped notice with a tracking number. I did not know it shipped until I asked my daughter to call and find out when it was going to be delivered or if it already shipped.

    • CL (store manager)

      Hello, thank you for leaving a 5 star review on your recent order. I apologize that you never received an email with the shipping confirmation. We hope the product works great for you. If there’s anything else we could assist with please let us know!

  51. Joseph Marshall (verified customer)

    Verified reviewVerified review - view originalExternal link

    I purchased this product from Roofing Direct thinking it would be of better quality than one from a big box store because it was twice the price. The product is the same or lesser quality than the same product as Lowe’s Hardware and Home Depot.

    • CP (store manager)

      Joseph, we apologize that the product didn’t live up to your expectations. We stand by the quality of the item and would be happy to accept a return for it. Please let us know if there is anything else we can do for you.

  52. Ian McLean (verified customer)

    Verified reviewVerified review - view originalExternal link

    • CP (store manager)

      Thank you for the 5 stars Ian!

  53. Adam Joline (verified customer)

    Verified reviewVerified review - view originalExternal link

    Great timely product arrival even under covid constraints. Thank you.

    • CP (store manager)

      Adam, thank you for the review! We like hearing when orders arrive on time!

  54. Mac Minton (verified customer)

    Verified reviewVerified review -