Broan-NuTone 636 Steel Roof Vent Cap for 3" and 4" Round Duct, For Bathroom Ventilation Fans, Black

The Broan-NuTone 636 Roof Vent Cap is excellent! It fits perfectly on 3" and 4" ducts and provides strong, durable protection against weather. Installation was straightforward, and the black finish looks sleek. Great for bathroom ventilation—no leaks or issues so far. Highly recommend for reliable performance and quality construction. A fantastic buy!

I absolutely love this Broan-NuTone Steel Roof Vent Cap! 🖤 It's amazing for 3" and 4" round ducts, ideal for bathroom ventilation fans. The installation was a breeze - super easy and hassle-free. The sleek black design adds a stylish touch to my roof. Highly recommend this for anyone needing a reliable vent cap! 👌🏼 #BathroomUpgrade #EasyInstallation #HighlyRecommend

is exactly what i wanted. watched an 'old house' utube video and found it very easy to install after cutting the hole in the roof. was competitively priced and seemed decently made. only time will tell.

Great as a low profile vent for exhaust fan. What’s not so great is the tiny flange. A lot of roofers won’t use it as there is just not enough lap onto adjacent roofing shingle. Flange should be twice as big to get a good seal. So make sure you use some stickie back product to add to the flange to create a larger footprint. Always have to worry about wind blown rain with these units.

No issues to report. Seems fine.

As a mechanical contractor we use a lot of different hoods. I always prefer to use these as apposed to any other brand.

The roof cap came double boxed and arrived within the expected time frame. It was a low cost leader from the seller which drove part of my decision to purchase along with visiting the manufacture's site. It was simple to install and came with good simple directions whicha re also available on manufacturer's website. Came with a reducer coupler from 3" to 4" ducting. Most bath fans are 3" outlets and this cap has a 4" opening and the adapter allows for an easy connection - at least in my application. The backdraft damper is maybe the only possible questionable feature of this item that is 5 stars. It does not allow for a 100% seal the way it is designed because the flap has no offset to allow for the additional thickness of the closed foam seal used. I was able to make the addition of a flap to cover the small 1/4" area that the foam is unable to seal at near the hinge. It certainly is sufficiently sealed otherwise, I am just a little fussy about any air leaks in my house.

The fastener holes are too close to the vent neck, which will cause difficulty when hammering or screwing it into your roof. The base plate was slightly warped, so it needed ample sealant where it fays against the roof. I need it tighten the fasteners quite a bit to remove the bow. Otherwise, the coatings appear durable, and it has decent build quality and value above the equivalent product you'll find at Home Depot.