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Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White

Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White

Item # 344270KITW
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344270KITW - Vent Install Kit LaSalle Bristol RV Vents and Fans
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Roof vent install kit allows you to properly mount your RV roof vent and create a waterproof seal. Kit includes 2 tubes of self-leveling sealant, 1 roll of butyl tape, 8 wood screws, and 30 sheet metal screws. 1-800-940-8924 to order LaSalle Bristol accessories and parts part number 344270KITW or order online at Free expert support on all LaSalle Bristol products. Guaranteed Lowest Price and Fastest Shipping for Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White. Accessories and Parts reviews from real customers.
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LaSalle Bristol Accessories and Parts - 344270KITW

  • RV Vents and Fans
  • Vent Install Kit
  • LaSalle Bristol

Roof vent install kit allows you to properly mount your RV roof vent and create a waterproof seal. Kit includes 2 tubes of self-leveling sealant, 1 roll of butyl tape, 8 wood screws, and 30 sheet metal screws.


  • Installation kit includes everything you need to mount your RV roof vent with a waterproof seal
    • Works on surfaces such as aluminum, brass, steel, glass, mortar, wood, PVC, EPDM, TPO, and TPV
  • Pre-formed, synthetic polymer butyl tape remains flexible for years
    • Adhesion improves with age
  • Weather-resistant, paintable sealant is self-leveling for horizontal surfaces
    • No primer required
    • White color
  • Kit includes:
    • (2) 10.1 oz tubes of sealant
    • (1) 60' Roll of butyl tape
    • (8) #8 x 3/4" wood screws
    • (30) #8 x 3/4" sheet metal screws

344270KITW Roof Vent Installation Kit - RV Roof Membrane - Sealant, Butyl Tape, Screws - White

31071 Zinc Sheet Metal Screw - 8 x 3/4" Indented Hex Washer Head - Hex Slotted Drive

30587 Wood Screw - 8 x 3/4" Slotted Round Head

270341410 LaSalle Bristol XTRM Butyl Tape - 60' Long x 3/4" Wide - Qty 16

27034145 LaSalleBristol XTRM Universal Self-Leveling Sealant - 10.1 oz - White - Qty 24

Customer Reviews

Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White - 344270KITW

Average Customer Rating:  4.8 out of 5 stars   (109 Customer Reviews)

Roof vent install kit allows you to properly mount your RV roof vent and create a waterproof seal. Kit includes 2 tubes of self-leveling sealant, 1 roll of butyl tape, 8 wood screws, and 30 sheet metal screws.


The installation kit contained everything I needed to install my new roof vent. I only used about half of the tape and less than a full tube of sealant. Happy trails!


Its Great brand I had in my intech explore. I've had it for a year now in my 2021 winnebago and unfortunately the bearing is somewhat noisy. Definitely dont think it's going to hold up boondocking. Maybe theres a difference from the white unit I have now than the black that was in my intech explore.


Ordered the Vent Installation kit, as well as the vent, to install on an older 6x12 enclosed cargo trailer. The kit is exactly what is needed for a waterproof, clean installation. Butyl tape between the vent bracket and the trailer, then self-leveling sealant over the screws and the perimeter of the bracket-trailer seam. Screws to mount the vent and the decorative trim were also included. I made due with one tube of caulk, but can understand some installs would need two. Same with the butyl tape - used less than 1/2.

Of note - first set of butyl tape arrived having been mangled in shipping. were great about immediately sending out a replacement, no questions asked. Great service

A year later, trailer still dry inside!!
Dan - 10/31/2020


Good replacement. Has held up well. Replaced on a metal roof and original was riveted down so a little harder to install, but doable.


Worked as expected, enough left over to use for a second fan installation.


Great service & great products! Thanks


More than enough tape and caulking to install two 14" x 14" roof vents. Worked well.


The sealant is difficult to apply smooth and straight but that should be expected with this type of joint design. The etrailer videos helped with the process. The trick is to carefully apply the sealant where it is needed and do minimal tooling to smooth and fill gaps. No product data sheet is apparently available to understand how to work with the sealant or to provide preparation recommendations, cure times, and safety considerations. No success with locating the product data on the internet or the manufacturer's site. The butyl tape should be shipped flat or attached to a flat sheet of cardboard. When I opened the box it was molded into to a taco shape and had to be set out overnight to creep back into a flat roll. I did not use the carbon steel self tapping screws.

No problems with the installed products.
Jeff - 07/17/2020


Perfect except I ordered 3 to put in 3 roof vents, used less than 1 roll of the putty tape and 1 1/2 tubes of silicone. Should have bought 1 and picked up extra screws for other 2.

Vents are still leak proof
Randy S - 06/19/2021


Have never had any issues with ordering anything from etrailer! When it comes time to update items on our Motorhome I always think of etrailer, items ordered shipped in a timely manor and arrive in excellent condition!


Received my Maxx Fan and roof vent kit on Monday 6/17/19 right on time and everything was their and in good condition. I installed the Maxx Fan on my 2017 GMC cargo van the same day, took me a little longer than I thought it would but not bad for a 74 year old guy. I watched the videos that etrailer had on their site and some other [videos] and that really helped for a first time doing this type of install. I had the wiring ready to go and the fan worked great, thanks etrailer for the fast service and a great price on the Maxx Fan.

The Maxx Fan are great, I have two of them that I installed on my camper van because I have no extra windows to open for air. They are both wired up to a house battery that charges from the vans alternator as I drive or can be charged with a battery charger. E Trailer has great videos on installs of a lot of their products and are a great help. Love my Maxx Fans and would install them again.
Julien - 06/20/2020


I’m very happy with this product . Tha nk


Instructions were good and more than enough sealer to do the job.


Received the items and were packaged well. My husband spent the morning inserting the new vent and works properly and installed. He was pleased with the quality.


Everything I needed was in the kit. Plus plenty of extra screws. The butyl tape is an awesome product. First time using it. The two tubes of sealer applied easily and leveled out nice. Professional looked job. The extra I had left over I resealed my solar panel and every seam on my roof.

The installation kit did the job and is holding up great after a year. I didn’t need to use both tubes of a TRIM on the vent. I used the other tube to reseal the roof top antenna, vents and seals on my 5th wheel. The extra Butyl is handy to have also. I used some of to stop a windshield leak on my car.
Robert - 04/25/2020


Worked great and still in great shape after a year of service.


This made replacing my roof vent very easy.
The order arrived quickly and everything promised was in the box. They supplied enough sealant to have leftover. The corners of the vent were not padded enough during shipping and were a little bent. It was not a problem straightening them, but it’s not something I should have to do.
The supplied screws are a little small compared to the original vent screws I removed and the interior trim screws were cheap slotted screws. I had to reuse the old screws on the interior and some of the exterior.


great. but didn't need two tubes of the sealant. One is more than sufficient for a 14 x 14 vent.

Perfect. No leaks.
Clifton R - 11/16/2021


Receive my roof vent last Thursday opened it up looks good been raining for the last few days hope to install it this weekend looks easy and it can’t complete thanks for the speedy service

Ruffin installed very easily direct replacement to what I had had a lot of extra stuff though extra tube of caulk and an extra roll of caulking other than that very pleased no leaks installed as it should
William - 11/20/2020


It arrived as promised and it looks gre at!


Our first travel trailer, 30-years old but it has some easy issues to fix. Hubby went to and found almost everything we need. One phone call later and we had the parts on the way.
Love, love, love the installation videos, installation instructions and wiring help videos as we have no clue what to do with two black wires - LOL
Off on our travels in a few weeks and we'll be seen and safe on the road.
Thanks to all the wonderful ladies in Sales and Customer Service


Good quality and nothing missing so we could complete the job.


dicor And butyl tape are the only thing I use on my RV I try to stay clear of silicone if it's going to be in the sun. Products were as advertised

Easy to use effective and inexpensive doesn't get any better than that[thumbs up]
Never go back to the RV store locally the markup is horrendous.


This is a great replacement vent fan for my 2006 [email protected] Reversible air flow and three speeds. Real power too. Installation was a snap thanks to etrailer videos. Thanks once again guys!


After calling many dealerships to try and get a specific part (and not getting an answer or call back) I called etrailer and spoke with Pat (immediately). I told her what I needed and she knew exactly the correct part. She shipped it out the same day! I will definitely be a customer for life and have already recommended etrailer to my friends! Excellent customer service!!!

Show More Reviews

Ask the Experts about this LaSalle Bristol Accessories and Parts

  • Install Kit Recommendation for Trailer Roof Vent with Sealant
    We have the part # 344270KITW which includes hardware and sealant for installing a roof vent like what you mentioned. I attached an install video that covers how this is used as well.
    view full answer...
    Image 1 for
  • Will the Roof Vent Installation Kit 344270KITW Work On a Fiberglass Roof
    Yes, the Roof Vent Installation Kit part # 344270KITW will work just fine on a fiberglass roof. I verified this with the manufacturer of the sealer for you, LaSalle Bristol.
    view full answer...
  • Can Roof Vent Install Kit 344270KITW Be Used on Cargo Trailer with Henry’s Tropic Cool
    Yes the Roof Vent Installation Kit # 344270KITW can be used on a roof of a trailer that has had the Henry’s Tropic Cool installed.
    view full answer...
  • Ceiling Garnish Installation Kit for Ventline Ventadome Trailer Roof Vents
    The ceiling garnash won't include screws but there is an installation kit for trailer roof vents. The kit # 344270KITW includes sealant, Butyl tape, and all screws needed for installation. The sealant can be painted 72 hours after setup. The types of screws included are sheet metal screws (30 count) and round-head wood screws (8 count). Garnishes are only available in white.
    view full answer...
  • Where to Apply Caulk When Installing Trailer Roof Vent
    You would want to run a bead of the sealant around the vent opening on the underside of the mounting flange as shown in red on the photo I edited for you. Put the vent into place, pressing firmly so that the sealer spreads to the area around the mounting holes so that they are sealed when the vent is screwed into place.
    view full answer...
    Image 1 for
  • Install Kit Recommendation for the Fan-Tastic Vent Roof Vent w/ 12V Fan # FV801250
    The Fan-Tastic Vent Roof Vent w/ 12V Fan # FV801250 would only need the Installation Kit # 344270KITW. This comes with sealant and install screws to secure it to your trailer.
    view full answer...
  • Troubleshooting Separated Siding at the Joints of the Trailer
    The Camco RV Vinyl Trim Insert # CAM25262 will replace your trim and allow you to have a nice molding. It is not intended to seal your walls, but to simply give you the finished look. This trim is intended to slide into existing metal track that is holding the siding in place. Since your aluminum sides are separating, I recommend using the Installation Kit with Screws and Sealant # 344270KITW to seal the siding from water and also secure it in place with the screws. I recommend removing...
    view full answer...
  • Install Kit Recommendation for Fan-Tastic Vent Roof Vent FV801250
    For an install kit that comes with sealant to use with the Fan-Tastic Vent Roof Vent # FV801250 that you referenced we offer the # 344270KITW which comes with fasteners and a urethane sealant.
    view full answer...
  • Roof Vent Install Kit Recommendation for RV with Fiberglass Roof
    Since you have a fiberglass roof the RV roof vent install kit you'd want is the part # 344270KITW. The Butyl tape kit you mentioned # CAM25013 is for use with rubber roofs or sidewalls so it would not work for you.
    view full answer...
  • Kit Needed to Install Fan-Tastic Vent Roof Vent
    We have a kit made for installing roof vents, including the Fan-Tastic Vent Roof Vent # FV802250. What you need is the Roof Vent Installation Kit # 344270KITW. This kit does include butyl tape, which you'll need, as well as sealant and screws. This kit will work for you no matter if your roof is metal or rubber. I have added a link to a video review of this kit for you to check out.
    view full answer...
  • Comparing the Blue Ox Patriot 2 and Patriot 3 Portable Braking Systems
    There is one key difference between the Blue Ox Patriot 2 Portable Braking System part BRK2016 and the Blue Ox Patriot 3 Portable Braking System part # BRK2019. The difference is an extra safety measure built into the Patriot 3. The Patriot 3 has new software that will alert you of any unwanted pressure on the brake pedal. For example, if the seat was positioned too far forward and put pressure on the brake pedal without you knowing the Patriot 3 would alert you to this whereas the Patriot...
    view full answer...
  • Can I Replace a Fantastic Vent 801200 with a 801250
    Yes. Both the FV801200 and # FV801250 are designed to fit in 14-1/4" x 14-1/4" roof cutouts, so you'll be able to swap out your existing fan for the # FV801250 without any issues. If you're going to be installing this yourself you'll also want to get the Roof Vent Installation Kit - Sealant, Butyl Tape, Screws - White # 344270KITW, since it comes with all of the parts needed to install a new roof vent.
    view full answer...
  • Can Existing Holes from Old Vent Assembly be Used for Hardware to Install Fan-Tastic Roof Vent
    As long as the holes where the existing screws are at are in good shape and they aren't too big for the recommended #8 screws that come in the installation kit # 344270KITW there should be no problem in using the same holes to install the Fan-Tastic Vent Roof Vent # FV801208.
    view full answer...
  • How Does Exterior RV Shower Box Install on RV
    The Exterior RV Shower Box # 324-000061 that you referenced has 10 small bolt holes that are around the perimeter of the mounting bracket which most will use wood screws with. You'll want to cut the opening needed in the siding of your camper, then use some 2 inch by 2 inch boards to create a frame just behind the opening so that you can drill through the siding into wood to secure the shower in place. You'll also want to use butyl tape to seal the enclosure to the siding. For that we...
    view full answer...
  • Install/Sealant Kit to Use When Installing Fan-Tastic Roof Vent # FV800900
    You will need to use a sealant when you install the Fan-Tastic roof vent part # FV800900 that you referenced. For that we have the Roof Vent Install Kit part # 344270KITW which comes with all of the sealants you would need plus screws to attach the vent. I attached an install video that uses this kit on a similar roof vent for you to check out as well.
    view full answer...
  • Drill or Clamp Fan-Tastic Roof Vent for RV and Tip for Cutting Garnish to Length
    I like the more permanent drill application Fan-Tastic roof vents like the # FV801350 you referenced as they are easier to keep sealed. For an install kit the # 344270KITW would work well. This comes with the needed screws and all of the sealant you'd need. To trim the garnish I would recommend using masking tape to mark where you want it cut and then use a fine tooth saw to make the cut. Since it's plastic it will cut very easily.
    view full answer...
  • Can Fan-Tastic Vent Roof Vent w/ 12V Fan FV807350 Be Installed In RV Roof That Is Sloped?
    As long as the slope you mention in your RV's roof is a flat slope and not a dome, you can absolutely install the Fan-Tastic Vent Roof Vent w/ 12V Fan and Remote - Powered Lift - 14-1/4" x 14-1/4" # FV807350 and will have no issues. I do recommend using the Roof Vent Install Kit # 344270KITW to make sure you have no leaks after installing the new vent. I included videos of the products mentioned for you to take a look at.
    view full answer...
  • Can The Camco RV and Enclosed Trailer Roof Vent Cover Be Installed Off-Centered
    Installing the Camco RV and Enclosed Trailer Roof Vent Cover w/ Detachable Louvered Screen # CAM40453 a little bit off center shouldn't be a problem since the shape of the cover doesn't taper down too much on the sides. You'll still want to have the cover facing the correct direction though. A lot of RV vent covers with this design don't allow the factory vent cover to fully open any way so you will have no issues with it not fully opening if it ends up touching the cover due to it being...
    view full answer...
  • Installing Ventline Vanair Trailer Roof Vent On 2014 Nissan NV200 Roof with Ridges
    In order to seal the Ventline Vanair Trailer Roof Vent # VP-543SP on your 2014 Nissan NV200 I recommend using the sealant that comes in the Installation Kit # 344270KITW. This sealant is waterproof and will keep the elements out of your van. The sealant will fill the space between the roof of your van and the vent. I spoke with Ventline about installing the Vanair on a cargo van with a ridged roof. They do not have any recommendations or suggestions for installing the vent on the roof...
    view full answer...
  • Replacement Roof Vent for a 2000 Vintage Bandit Trailer with 14.25 Square Roof Vent
    With a rough in opening of 14-1/4 x 14-1/4 inches, you can use pretty much any replacement square vent assembly we offer, see link. Some are manual crank outs, some are electric. Some are construction of metal, others plastic. And there are different lid types. Since you are replacing the whole assembly what you get as a replacement is up to you. Make sure that you measure the thickness of the roof. You may need a different ceiling garnish depending on how thick the roof is. Available...
    view full answer...
  • Ventline Vanair Trailer Roof Vent w/ Fan # VP-543SP for Box Truck
    The Vanair Roof Vent with Fan you referenced, part # VP-543SP was originally designed for use on conversion vans, so it should be a great choice for your box truck. The vent will install into a 6-1/4 inch diameter rough opening. The garnish (or inner trim ring) allows the vent to be used on roofs of different thicknesses. Since your roof is so thin, you might need to trim some of the length off of the garnish which is fine according to the manufacturer. The installation kit which includes...
    view full answer...
  • Can Rain Get Into the Ventline Powered Vanair Trailer Roof Vent # VP-543SP
    It is not likely but possible for rain to get into the vent when it is open. The outer lid overlaps the lower housing so water would have to come in sideways (if parked level) for it to get in. Also if the trailer is parked on an incline, the angle required to enter in the vent would not be as severe so you just have to plan accordingly. For installation we recommend using install kit # 344270KITW.
    view full answer...
  • Can the Ventline Vanair Trailer Roof Vent be Used on a Truck Bed Camper Shell
    Yes, you could use the Ventline vent # VP-543SP in a truck bed camper shell if you wanted. The only issue is that on camper shells the thickness of the shell is usually much thinner than that of a trailer or RV. You may need to come up with a gap spacer to compensate for the thinner roof. I have linked a video review of this vent for you. I also recommend installation kit # 344270KITW which comes with screws, tape, and caulk to seal around the vent to keep out water.
    view full answer...
  • Roof Vent for a 1968 Streamline Travel Trailer
    We have several vents that might work for your Streamline trailer but nothing that is made specifically for it. I have included a link to the right to the options for you. Most of the vents require a 14-1/4 inch square opening to install the vent. The majority of the vents have plastic lids with a few exceptions that have metal lids. Beyond that it is just a matter of the color you want: white, blue, smoke, silver, clear, and metal. I also recommend the vent installation kit # 344270KITW.
    view full answer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Kathleen M
Video by:
Kathleen M
Employee Michael B
Video by:
Michael B
Employee Chris R
Video Edited:
Chris R
Employee Mary E
Updated by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Edited by:
Amanda M
Employee Shane H
Test Fit:
Shane H
Employee Robert C
Installed by:
Robert C
Employee Halie H
Written by:
Halie H

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