Home » Shop All Products » Roof Ventilation » Exhaust Vents » RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

Rated 4.74 out of 5 based on 97 customer ratings

(97 customer reviews)

Compare

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension | Exhaust Vents | Roofing Direct

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension | Top Sellers | Roofing Direct

SALE

$46.25 – $164.95

Size

Color

Quantity

Clear

Please select all options before adding to cart.

Compare

Request Quote

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

Estimated Delivery:

Apr-23 - Apr-30

Free Shipping

This product qualifies for free shipping to lower 48 states.

Ready to Ship

Typically ships between 1-2 business days.

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

$46.25 – $164.95

Item# RDP-BKX

Rated 4.74 out of 5 based on 97 customer ratings

(97 customer reviews)

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. It also comes 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

Product Specifications

Item #

RDP-BKX

Brand

RDP

Warranty

Weight

5 lbs

Material

Heavy Gauge Painted Steel

4" Estimated CFM Range

200 - 400 CFM's

6" Estimated CFM Range

400 - 600 CFM's

8" Estimated CFM Range

600 - 800 CFM's

10" Estimated CFM Range

800 - 1000 CFM's

Warranty & Documents

Bath and Kitchen Vent Specs

Download

Product Reviews

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

4.7

Based on 97 reviews

5 star	86	86%
4 star	6	6%
3 star	4	4%
2 star	1	1%
1 star	2	2%

Customer Images

Rated 4 out of 5

Thomas C.

February 24, 2023

Good Quality Vent Cap

Rated 4 out of 5

Thomas C.

February 24, 2023

Good Quality Vent Cap

Rated 2 out of 5

tim

August 29, 2021

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.

Rated 2 out of 5

tim

August 29, 2021

Rated 2 out of 5

tim

August 29, 2021

1-5 of 97 reviews

Matthew R.
Verified owner

March 21, 2024

Rated 5 out of 5
Kris Duarte
Verified owner

January 31, 2024

Rated 5 out of 5
Verified Buyer
Verified owner

October 25, 2023

Rated 3 out of 5
Product is pretty good except for the metal screen which fell out in shipment. This is a consistent problem mentioned in prior reviews which still hasn’t been resolved. The official response has been something like “ we leave it loose so you can clean it out in the future “. This of course is a BS response. I added 2 self tapping metal screws to secure the screen to the product so that the screen doesn’t come loose . The last thing I want is to have the screen loose up on my roof. Please fix your product!!!
- CP
  Verified owner
  
  October 27, 2023
  
  Hi Robert, thank you for your concerns regarding the vent screen. These are secured from the manufacturer using a pressure fit design, however, they can become loose due to the intense rattling created in transit. Please be assured that these are not normal conditions that the vent would experience through its intended use and after installing you should not have any additional problems.
David Meltebeke
Verified owner

October 12, 2023

Rated 5 out of 5
Perfiect .. well packed and all looks great
- CP
  Verified owner
  
  October 27, 2023
  
  Thank you for letting us know that the product was packaged well and that it looks great.
Sean Kullman
Verified owner

October 9, 2023

Rated 5 out of 5
Exactly as ordered. Arrived promptly.
Thank you!
- CP
  Verified owner
  
  October 27, 2023
  
  We are glad to hear that the product was exactly as you ordered and arrived promptly for your project! We appreciate your review.

Add a review

RDP Rooftop Exhaust Vent Cap with Damper and Bottom Extension

Rating*

0/5

* Rating is required

Your review

* Review is required

Name

* Name is required

* Email is required

Add photos or video to your review

* Please confirm that you are not a robot

Questions & Answers

Have a question about a product that you cannot find the answer to? Ask below and we will respond. If your question is urgent, please call 855-670-7663.

Q & A

I have a 6 inch exhaust pipe from my kitchen fan unit - will this vent work on a 12/12 pitch roof Jeff asked on February 28, 2024

It would not be recommended as this product is designed for pitched roofs ranging from 3/12 to 9/12 pitch.

Bryan L. answered on March 6, 2024 store manager

(0) (0)

Can I use it on a flat roof. In PA the snow could be one foot deep. Z J Konopelsky asked on February 10, 2024

This vent was designed to be used on a pitched roof.

Bryan L. answered on February 27, 2024 store manager

(0) (0)

what are the approximate measurements of the portion of roof cap that is visible on the roof ? Mary T Minturn asked on November 20, 2023

This information is available in the warranty and documents section of the product listing.

Bryan L. answered on November 21, 2023 store manager

(0) (0)

Does the flapper fit snug enough to keep out flying ants? Mark Thiele asked on August 14, 2022

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

Bryan L. answered on August 29, 2022 store manager

(0) (0)

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? Thomas asked on April 1, 2022

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

Bryan L. answered on May 23, 2022 store manager