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This roof vent keeps air circulating so interiors don’t get stuffy. The hand-operated crank opens and closes the dome easily from inside, letting in fresh air or releasing heat without needing any power or wiring. It’s simple and reliable, perfect when you just want airflow without adding electrical parts.
The mill-finish metal lid and galvanized steel roof flange stand up to weather, wind, and UV exposure without rusting or corroding. When closed, the vent sits only about 2" high for a low-profile look that doesn’t add bulk on the roof. Open it fully and you get around 11-1/4" of height for maximum ventilation.
This vent drops right into a 14-1/4" x 14-1/4" roof opening, the standard size for most trailer vents. It includes a polar white interior trim piece that fits roofs 1-7/8" to 3" thick, with a 2-1/8" garnish depth. The screen snaps out for easy cleaning, and if you need a different trim depth, other garnish sizes are available separately.
Mounting only takes basic tools. Apply sealant under the flange, align it between roof joists, and secure it with #8 screws. Screws and sealer aren’t included, but the Installation Kit #344270KITW has everything you need to complete a watertight setup. Once bolted down, the vent is ready to use for steady airflow and a comfortable cabin.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews
Had the same holes to replace the old one...did not use the inside trim, did not have one before..this is just a snowmobile trailer by Thule.
Great price, prompt shipping...showed up undamaged. It was easy to install on my 58 Shasta.
The order was delivered quite quickly. The new vent was a perfect fit to replace the broken one on my trailer. It actually makes my beaten up trailer look better!
It was a perfect fit to the existing hole
Easy to install
The vent and service are good. I am surprised it didn't come with screws.
Perfect for my classic camper.
Great interaction as always. Fast shipping too!
Product arrived quickly and everything I needed was in the box to do the roof vent install. So far, very pleased.
This product was purchased to replace an old vent that broke. The vent showed up on the front steps. I open the box and found the corner to be bent up. I needed to fix the hole in the roof A.S.A.P.,
so I bent the corner back to avoid going through a return. Over all
I'm happy with the vent, but not thrilled about it being bent.
I had a plastic roof for years and years, but the most recent one (of three) was cooked by the sun and just became so brittle that its crank frame broke right out of it. I hadn't even been aware of the existence of the metal one until I went to the Internet (instead of brick-and-mortar stores) but I find nothing at all wrong with this one and expect never to replace it. That is, unless some goofball tries to bring my van out of a garage without having raised the door high enough like when my first one was ruined, back in the 1990's.
I bought two of these for my steel roof 1969 Clark Cortez motorhome. I actually ordered the 2nd one after buying and installing the first, so I am a repeat customer with this particular vent. Shipped to my door for cheaper than a vintage supply website offered the exact vent for replacements on vintage airstreams and other trailers. The installation was simple. Looks clean and I LOVE the metal vents. No early morning sunlight over my head in my eyes when camping. :) :) :)
I love my new metal vent!
My auto is a Ford 2007 E350 Super Extended cab with 138,0000+ miles which I also love not the miles but the Van.
Living here in the Rocky Mountains above the sleepy town of Las Vegas New Mexico a metal vent was essential as we have surprise hail storms even in the summer time which last year whiped out a record of windshields and metal house roofs!
The installation has awarded me as "Poster Child for the Unprepared'!
My jig saw brand , a "Rigid" non variable speed apparently, needed a new blade I soon found after successfully drilling the roof pilot holes. I had worn it out cutting heavy metal door thresholds.
Off to the town below to discover no one here has the correct blades for my brand. I then caved and bought a great variable speed Black and Decker which accepts Milwaukee blades even available almost everywhere! The drill championed the metal cutout plus murdered my back electric attachment to the dome light LOL! The caulking was for me messy as usual and Dylan had sent just the right amount to fill in even the 4 hole gaps as my roof has deep ridges to deal with after sinking the vent. The screws I found were inadequate for the metal roofing install so back to town this time covered in silver caulking appearing as a giant bird flying overhead had pooped on me lol. Finally back and screws in place to complete the seal I applied the remaining caulking all around the edges and finished with Flex Tape just in case to ward off our winters. As I said I love it! This is a great recommended product with my stamp of approval! Thanks Dylan!
I ordered two of these and one showed up damaged. They sent a new one to replace the damaged one and when the replacement showed up it was only the vent cover not a complete replacement of the damaged parts. Not a good experience by far.
Perfect fit; clear instructions; solid project materials. Replaced the OEM plastic cover that sun rotted out.
I bought this vent because it was low profile ,metal, manual operation and made in the USA. It was easier to install than I thought it would be ; because of the contours in the cap. No problem. The flange was wide enough and the gauge thick enough to make the contour perfectly. I used 100% clear silicone to make the seal.I'll paint it as soon as temperatures get back to normal. I highly recommend this unit.
Rich D.
1/6/2018
Its still working flawlessly
I just installed this vent less than a week ago.
I’m just hoping the metal vent versus the plastic one I originally had on the trailer will hold up to the weather longer.Only time will tell though.
The edges of the metal around the roof flange are razor sharp. I cut my hands three or four place's. If there’s any way the factory can round these edges off better so they’re not quite as sharp.
Heather A.
4/3/2025
That's terrible keith... that makes me angry for you! I will definitely let the vendor know. Thank you for sharing that.
installed on aluminum A.R.E. DCU truck cap.
Did not use the screw or caulk tape kit since the screws were far to long and the caulking is for rubber roofs. As it is, the smallest screws I found in size #8 were 1/2" long.
THe trim piece might be nice but it also reduces the head room in the space. i elected to not use it for that reason.
THe metal vent cover is what i wanted, though I wish they had smoothed the covers edge; it is sharp for the installer. But once installed it wont be an issue.
The screen is okay, but doesn't seem to completely cover the openings along the edge. If this was a concern, maybe a bit of 1/4" wide foam, backed with tape would make up the difference.
I prefer this type vent assy. with the round knob instead of the crank.
A cardboard template would have been helpful, but obviously not necessary.
With luck it will last half as long as the truck cap ... we'll see.
Art K.
8/5/2019
So far so good. I have not used it as much as I had anticipated. But it works for me when I do.
Received the Ventline Ventadome metal roof vent in good condition.
After removing the old plastic roof vent, the new unit slipped right into the existing square hole with no trouble. See the "before" and "after" pictures. The old plastic roof vent only lasted a few years in Wyoming (the 2 X 5 blocks in the "before" picture were duck taped in place to prevent the plastic bag I stuffed in there from blowing away - a temporary fix while waiting for the new vent).
I did not use the polyurethane adhesive between the roof and the vent flange. Everything deteriorates sooner or later especially in Wyoming. If I ever had to replace the vent it would be exceedingly difficult to remove it if stuck down with urethane adhesive. Instead I used ordinary putty (available at most hardware stores). In fact the old vent was sealed with putty. Since the putty layer is thicker than the urethane, I used 1" screws around the flange instead of the 3/4" screws supplied.
A year from now I'll see how the vent has survived.
Tim
7/29/2015
How far above the roof does it protrude?
Paul
7/31/2015
Tim, do you mean the distance from the roof to the top of the lid when closed, or when fully open?When closed it cant be more than a couple of inches. I dont know what it is fully open - maybe 12 inches?Unfortunately the trailer is in Wyoming and I am in Denver right now, so I cant measure it.Paul
Paul
9/4/2015
After one year in the Wyoming weather the vent has performed very well: no water leakage and no dust entry. Hail storms were not able to dent the vent lid even though they were severe enough to dent the aluminum trailer roof somewhat. I am pleased with the results. Paul
Ashley S was amazing and called me to inform me they could combine two orders to ensure I had free shipping.
best yet...most substantial one's that I've seen on the market...
but the vinyl sealer ring around the rim closure needs to be better secured..like silicone glued on (which I did)...it has a tendency to slip off.
minor issue..easy mod.
Bought 4 of these to redo/replace old plastic dome ones.
all good.
You can depend on eTrailer.
I’m very pleased with the quality of the vent and how easy it is to open and close. This was a replacement for the previous vent that became inoperable and leaked.
Erik
7/12/2025
It’s been a year and the vent continues to work like new. Keeping the screen clean is relatively easy. There is a type of plastic, or nylon gasket that the hatch closes onto and its flexing, but I don’t notice any issues yet due to that. Hopefully it’s possible to just replace that gasket here in the future. Thank you.
Kate F.
7/14/2025
This is the perfect replacement for my cargo trailer. I prefer the aluminum over the plastic. Online order was simple and fast shipping.
Seems like a better built and better quality RV repeated product, mostly metal rather than brittle plastic to replace a similar vent that was nearly 40 years old. Install was strait forward and uneventful. Unfortunately the crank mechanism lasted about 6 months, can’t open or close the darn thing, bummer because instal is semi permanent with sealant and screws etc.
The package arrival date changed multiple times which made it difficult to schedule someone to install this . ( Dodging cold weather in WI) The video was VERY helpful and I was able to complete the task with only a friend's consult re: sealant product. Despite being bent, everything fit well and dropped in easily with minor adjustment. Screws not included so be sure to buy self tapping or save old ones. I'm leaving a cover on the bed for a few days just in case!
Excellent service, item arrived couple days early and fit perfectly. Installation was simple and straight forward thanks to online instructions.
Lazer S.
10/12/2026
Glad we could help, Michael! What did you install this on?
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Yvonne
6/1/2021
Working well. Want to get another one