VELUX

Model ECL 2246 0000C

Internet #202674854

Store SKU #448747

2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight

$84.98 /each
  • Required for VELUX No Leak Skylight installation warranty
  • Engineered to fit VELUX skylights perfectly for easy installation
  • Includes adhesive underlayment for watertight protection

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Product Overview

This curb mount skylight flashing Kit interweaves with your roofing material to help provide proper water drainage. The included adhesive underlayment provides an additional layer of water protection. When paired with the new VELUX No Leak Skylight (models FCM/VCM/VCE/VCS) this flashing makes the skylight eligible for the VELUX 10-year No Leak installation warranty.

  • VELUX ECL flashing is designed for use on roofs with shingles, shakes, or slate with a minimum pitch of 10 Degree and a maximum pitch of 60 Degree
  • ECL 2246 flashing is designed specifically to fit VELUX FCM/VCM/VCE/VCS 2222, 2230, 2234, and 2246 models with an outside curb width of 25-1/2 in. and maximum length of 49-1/2 in.
  • Flashing kit model cannot be installed on skylights from other manufacturers, or other VELUX skylight models not noted above
  • ECL flashing is not designed to work with a tile or metal roof, or deck mount skylights
  • Use the linked reference guide to determine which VELUX skylight model you have and ensure order accuracy

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Customer Questions & Answers

2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight

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This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
 
3 answers

How do I do the flashing for a residential flat roof with a 1/4" drop per foot pitch

This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
Asked by
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May 20, 2015
In a reply to another question for this product, a Velux rep in 2014 wrote that for roofs with a pitch lower than 2/12, my contractor and his people like the roofer should do their own flashing around a curb he builds? Another Velux rep in 2012 in reply to another question on this same page said for pitches below 14%, to use flashing supplied by Velux named ECB Biepack Flashing. Two questions:

1) Is the ECB Biepack Flashing made for a roof that is nearly flat that is going to have a bitumen membrane roof finish put on it? The slope is 1/4" per foot. That is the minimum required pitch in Florida. We are putting a bitumen type roof on it.

2) If it is made for a nearly flat roof, what benefits does it offer my contractor over just having my roofer do his own flashing for example with the bitumen? The price of the ECB Biepack Flashing is about $170 and from memory, it seems flashing is usually less than that. What comes in the ECB Biepack and what does it do?
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Answers (3)

May 26, 2015
Answer: 
Peter, in regards to your follow up question on the flashing:
Our curb mount skylights are designed to fit over a site-built curb, and our standard curb mount flashing (ECL/ECW) is designed to be installed around the base of that site-built curb if the roof pitch is between 10-60 degrees for an asphalt/shingle/shake roof, or 14-60 degrees for a tile or high-profile roof. If the site-built curb is built Read More
Peter, in regards to your follow up question on the flashing:
Our curb mount skylights are designed to fit over a site-built curb, and our standard curb mount flashing (ECL/ECW) is designed to be installed around the base of that site-built curb if the roof pitch is between 10-60 degrees for an asphalt/shingle/shake roof, or 14-60 degrees for a tile or high-profile roof. If the site-built curb is built on a roof with a slope lower than that, then the standard (ECL/ECW) flashing cannot be used, and the installer will need to use their own flashing around the base of the site-built curb.
Our deck mount skylights are designed to be installed directly over the hole in the roof deck and our standard deck mount flashing (EDL/EDM/EDW) is designed to be installed around the skylight itself. The pitch of the surface upon which the deck mount skylight will be installed must be at least 14 degrees. This is why our website recommends curb mount skylights for low slope roof applications; they can be installed on a site-built curb on a flat roof more easily than a deck mount skylight.
The only way a deck mount skylight can be installed on a low-slope roof is if a site-built curb with a top that is pitched at least 14 degrees is installed on the roof. The ECB biepack flashing covers the top edges of the site-built curb like a shoebox top, but it does not go down further than that, so the installer would still need to use their own flashing around the base of the site-built curb where it attaches to the roof deck.
I hope this clarifies the replies you read and received from our support team. Please contact VELUX customer service to request detailed instructions on the ECB biepack flashing since I do not have the ability to attach the file to this answer. Thank you for your interest in VELUX skylights! Read Less
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May 22, 2015
Answer: 
Dear Velux,
Regarding your reply to my question yesterday, a rep from your company told another person in the Questions section here that a roof with a pitch of less than 14 degrees requires building a curb:
"If you pitch is less than 14 degrees, the deck-mounted unit requires an angled curb to be built on the roof, which then you would use an ECB Biepack Flashing"
That indicates that the ECB Biepack Read More
Dear Velux,
Regarding your reply to my question yesterday, a rep from your company told another person in the Questions section here that a roof with a pitch of less than 14 degrees requires building a curb:
"If you pitch is less than 14 degrees, the deck-mounted unit requires an angled curb to be built on the roof, which then you would use an ECB Biepack Flashing"
That indicates that the ECB Biepack Flashing is used for skylights mounted on curbs. But yesterday, the rep wrote basically the opposite: "If you are installing our Curb Mount Skylight, the roofer will need to construct the flashing. If you are installing our Deck Mount Skylight, you would use the ECB Biepack Flashing."
One is saying to put ECB Biepack over a curb we build, and one is saying if we do a curb, to do our own flashing. Which is correct?
Also, while the reply yesterday talks about putting a deck mount skylight on my nearly flat roof, the Velux website only lists curb mount skylights on their Flat / Low Sloped Roofs solutions page:
http://skylights.veluxusa.com/consumer/products/residential_skylights/flat_low_sloped_roof
Given that reps have indicated two different things, please put a link to the Velux instructions and/or specs which say what is needed in detail for flat roofs (including curb mount, deck mount or I can choose; plus what flashing for each), or at least copy and paste the exact text of the instructions, or I won't have confidence that the info is correct.
Thank you,
Peter Read Less
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May 21, 2015
Answer: 
They are both correct, depending on which skylight you are installing. If you are installing our Curb Mount Skylight, the roofer will need to construct the flashing. If you are installing our Deck Mount Skylight, you would use the ECB Biepack Flashing. Thank you.
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This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
 
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do i need curb mounted flashing to install fixed curb-mount skylight

This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
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June 15, 2016
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Answer (1)

June 17, 2016
Answer: 
If you are installing our Curb Mount Skylight on a 2/12 pitch or greater, you will need to use our flashing kit. A shingled roof deck with take the ECL Step Flashing Kit and a tile roof will take the ECW High Profile Flashing Kit. If your roof pitch is less than a 2/12, or you have a metal roof deck, you will need to construct your own flashing system. Thank you for choosing VELUX!
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This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
 
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What flashing kit do I use if I install the skylight crosswise (long dimension parallel to the gutter at the edge of the roof)?

This question is from 2222/2230/2234/2246 Low-Profile Flashing with Adhesive Underlayment for Curb Mount Skylight
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April 11, 2016
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April 13, 2016
Answer: 
If you are changing the orientation of any of these FCM fixed curb mount units to install horizontally longer on the roof deck, you will use the accommodating ECL Step Flashing Kit, i.e., 2230 will take the ECL 3046 Kit, 2234 will take the ECL 3446 Kit, and 2246 will take the ECL 4646 Kit. In each scenario, you will have extra step tins at the finish of installation. I hope this is helpful. Thank you for Read More
If you are changing the orientation of any of these FCM fixed curb mount units to install horizontally longer on the roof deck, you will use the accommodating ECL Step Flashing Kit, i.e., 2230 will take the ECL 3046 Kit, 2234 will take the ECL 3446 Kit, and 2246 will take the ECL 4646 Kit. In each scenario, you will have extra step tins at the finish of installation. I hope this is helpful. Thank you for choosing VELUX! Read Less
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What is the difference between curb and deck mounting?

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January 19, 2014
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January 20, 2014
Answer: 
The Curb Mount Skylight is appropriate for a flat to low pitch. The build the curb (using a 2'x4' or 2'x6') and install our unit over it (like a lid over a shoe box). It is good for replacing bubble units that are on existing curbs. If your pitch is below a 2/12, you will have to flash the curb yourself with the roofing material (rubber membrane) or flat aluminum stock. Our flashing kit cannot be used Read More
The Curb Mount Skylight is appropriate for a flat to low pitch. The build the curb (using a 2'x4' or 2'x6') and install our unit over it (like a lid over a shoe box). It is good for replacing bubble units that are on existing curbs. If your pitch is below a 2/12, you will have to flash the curb yourself with the roofing material (rubber membrane) or flat aluminum stock. Our flashing kit cannot be used under a 2/12 pitch.
The Deck Mount Skylights have a built in curb already, and install directly onto the roof deck. They require a 3/12 pitch minimum. They are good for new installs. They take a different flashing kit. Instead of using the ECL, you will use the EDL Flashing Kit.
The Curb Mount Skylights and Deck Mount Skylights come in different sizes, as well.
Thank you for your interest in VELUX. Read Less
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Customer Reviews

Rated 4.7 out of 5 by 9 reviewers.
Rated 5.0 out of 5.0 by Completes the Velux installation process Required for installation as this does not ship with the Velux skylight, which is a pity when you want to get on and finish the job in hand. That appreciated the flashing is easily installed and matches the skylight framing exactly. It has now been in place for over two weeks during which time we've had a few heavy rainstorms and not a sign of a leak, as per the guarantee. There were only a couple of cons, the break lines provided on the saddle flashing to allow for installation on a 3.5 inch curb did not easily fracture, it took a good number of flexings to get the flashing to give and you also have to be careful that the self adhesive underlayment does not make contact with itself or with previously laid pieces before final alignment, it "grabs" almost instantaneously and is the devil to detach and realign! September 24, 2012
Rated 4.0 out of 5.0 by Good enough Needed an experienced roofer to install this on an existing roof. It took a couple hours. Plenty of flashing and water ice shield provided. January 19, 2016
Rated 5.0 out of 5.0 by Good Flashing Kit with Velux Skylight I have a contractor to install the skylight with the flashing kit. The kit really fit well with Velux skylight and it is recommended. September 29, 2015
Rated 5.0 out of 5.0 by Flashing kit for sky light. I purchased this flashing to go with a skylight. I'm sure my contractor enjoyed putting the two pieces together in my new property. Both the flashing kits & the skylights came in such a quick timely manner. May 20, 2015
Rated 5.0 out of 5.0 by Heavy duty flashing My roofer installed the skylights and flashing. He told me many folks won't buy the flashing to save money. But the flashing roofer use isn't as heavy aluminum as Velux flashing nor can we make the rounded curves this flashing has. Velux provided more than enough flashing material for the installation. Pricey but glad I bought it. March 27, 2015
Rated 5.0 out of 5.0 by getting a second unit ! I have used one of these skylight flashing kits for a repair we did for a customer. The kit had everything in it needed and fit the skylight very well. The storm guard included in the kit is very handy. I had another repair request for the same thing and I am going to buy the same kit. I have a roofing co and this is going to be my "go to" repair kit for all leaky skylights. January 26, 2015
Rated 4.0 out of 5.0 by Good Kit for Installing Velux Skylight....Do not attempt without this kit. Velux makes a great product, this kit included. I did this as a retrofit on a home with two layers of asphalt composition shingles. After cutting and framing and cutting back roofing etc. the last thing you want to do is to struggle closing your roof hole while racing against the imminent darkness or worsening weather. Two main complaints....primarily with the instructions: 1. Instructions don't go far enough in explaining the complications of the retrofit installation. My problem was that I have (2) full layers of composition. Here is what I did.... Cut back the roofing...(I actually didn't cut back quite as far as the instructions called for because I didn't want to have to buy shingles to fill the large gap between the curb and the remaining roofing material and interlace them etc....). Remove fasteners....(mine were a combination of staples and nails) adjacent to the hole before attaching your new curb. You'll need to be able to insert your underlayment between these layers (Clear a good 10 inches above/below and 6 inches to the sides). I then inserted standard uderlayment starting with a piece at the bottom...which overlaps the original bottom layer of underlayment followed by side pieces which overlap bottom piece just installed followed by the very critical top piece. Next I installed the curb. I stapled the underlayment pieces just installed to the curb. I created some filler pieces to fill up the area between the curb and the 1st layer of roofing to prevent a trough from developing between the curb and the 1st layer of roofing (I used some roofing cement under these fillers). From this point I proceeded to repeat the whole process, now acting on the second layer of roofing, with some modifications to make the best possible use of the self adhesive underlayment provided in the kit. As described below, this material is wonderful, but not ideal for a retrofit installation, so I had to improvise and use a combo of traditional and self adhesive underlayment. It would have been nice if the instructions covered retrofit installations more thoroughly. 2. Instructions don't tell you how your are supposed to make use of the self adhesive underlayment with a retrofit installation. This self adhesive underlayment is like a flexible seal material with a tenacious grip. The real problem would be when you try to somehow insert this material between layers of roofing materials then pull the release liner off. Things are not helped if it is a hot day (the adhesive gets even more tacky when heated up. Worse still, as this material warms up it becomes more limp and inserting it between the roofing layers is a nightmare. I seriously thought about pre-cutting the material to size and putting it in the freezer until the last possible moment so I would have a chance. If you are going to try this I recommend creating a "tail" of the release liner peeling back the liner and by cutting off a few inches of the underlayment only (this too is a little dicey once you peel back a little of the liner as this material sticks tenaciously to the scissors as well). Once you create this tail of the release liner it can be used to remove the liner after inserting the underlayment between the layers of roofing (with some luck anyways). I have done this retrofit before (no self adhesive underlayment) on a much younger house with a single layer of roofing. I have to say that a single layer of roofing is preferred by me (not really sure what Velux would have said). In any case, the "no leak warranty" is null and void because I could not execute the installation using the self adhesive underlayment without some serious deviations. Do your best to be prepared and be thorough. My prior installation never leaked and I have confidence that this installation will also not leak. Good luck to anyone brave enough to cut a gaping hole in their roof to let in the sun. May 11, 2015
Rated 4.0 out of 5.0 by Hard to install Needed help to install from a roofer. Not for someone with limited skill June 20, 2013
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