VELUX

Model # FS C04 2004

Internet # 202038756

Store SKU # 298752

21 in. x 37-7/8 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass

Frequently Bought Together

Product Overview

VELUX skylights are an energy-efficient way to bring sunlight into a home and make dark rooms come to life. Bringing natural light into a home through a skylight decreases the need for electricity while maintaining privacy. Installing a skylight is one of the most impactful ways to enhance both the brightness and beauty of a room.

Info & Guides

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Specifications

Dimensions

Daylight area (sq. ft.) 
3.5 
Product Depth (in.) 
4.5 
Product Height (in.) 
38.38 
Product Width (in.) 
21.5 
Rough Opening Height 
37.88 in 
Rough Opening Width 
21 in 

Details

Cladding Type 
Aluminum 
Color Family 
Gray 
Color Family 
Grays 
Flashing Included 
No 
Frame Material 
Wood 
Glazing type 
Laminated glass 
Hardware Included 
Yes 
Low-E (Y,N) 
Yes 
Material 
Glass 
Maximum roof pitch (degrees) 
85 
Minimum roof pitch (degrees) 
14 
Product Weight (lb.) 
38.2 lb 
Returnable 
90-Day 
Severe weather ready 
Yes 
Skylight Mounting Type 
Deck Mount 
Skylight material 
Glass 
U-Factor 
0.44 
UV protection (%) 
99.9 

Warranty / Certifications

Energy Star Qualified 
North-Central,Northern,South-Central,Southern 

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Customer Questions & Answers

24 Questions26 Answers

Customer Questions & Answers

21 in. x 37-7/8 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass
21 in. x 37-7/8 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass

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1 answer

Do these skylights open at all?

This question is from 14-1/2 x 45-3/4 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass
Asked by
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July 5, 2016
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Answer (1)

July 6, 2016
Answer: 
The FS Fixed- Deck Mount Skylights do not open. That size being 14.5 X 45.75 is too small to open and doesn't have a great enough width.
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1 answer

how do I measure the window to get the right replacement. my skylite was installed a long time ago. aprox 1984

This question is from 21 in. x 54-7/16 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass
Asked by
westborough ma 01581
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June 26, 2016
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Answer (1)

June 28, 2016
Answer: 
If you have a VELUX Skylight, you can provide the serial number, which is on the inside frame on a metal tag. If the tag has been removed, you can measure the outside frame dimension (on the roof deck). I hope this is helpful. Thank you for choosing VELUX !
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1 answer

Can you get a coating on the glass, so they are not see thru and you won't see bird poo?

This question is from Truss Series 22-1/2 in. x 45-3/4 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass
Asked by
Saint Charles mo
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February 29, 2016
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Answer (1)

March 1, 2016
Answer: 
Good reason to want to place a coating over the glass! However, we do not recommend that you place a coating over the glass. This may compromise the integrity of our glass and void your warranty. You do have the option of installing a solar powered light filtering bind on the interior pane. This will allow light to enter the room, but camouflage the glass as not to see bird poo. ;) If you would like to Read More
Good reason to want to place a coating over the glass! However, we do not recommend that you place a coating over the glass. This may compromise the integrity of our glass and void your warranty. You do have the option of installing a solar powered light filtering bind on the interior pane. This will allow light to enter the room, but camouflage the glass as not to see bird poo. ;) If you would like to investigate that option, you can enter model number FSLD D06 in the Products and Services search field. I hope this is helpful to you. Thank you for choosing VELUX! Read Less
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1 answer

Can It Be Used With An Attic

This question is from 21 in. x 45-3/4 in. Fixed Deck-Mount Skylight with Laminated Low-E3 Glass
Asked by
Hesperia, CA
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January 15, 2016
I plan to put in an attic. Can this skylight be used through an attic? If so, I assume a flume has to be installed, correct?

Steve
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Answer (1)

January 15, 2016
Answer: 
It would be advantageous for you to contact our Technical Department direct at 1-800-888-0361. This team of thoroughly trained individuals has the expertise to answer all of your installation questions accurately. Thank you for choosing VELUX!
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Customer Reviews

Rated 4.4 out of 5 by 10 reviewers.
Rated 5.0 out of 5.0 by Top quality skylight the flashing & mounting system goes together easy and leak free June 29, 2016
Rated 5.0 out of 5.0 by Awesome skylight and get the remote blind I got this skylight size but for a flat roof. I also got the programmable remote shade and am so glad I did. This thing works great and you can program hundreds of settings. I have it programmed every hour during the day so it closes little by little to keep the sun off of furniture but still gives you light and fully closed for an hour or two then back open. If you don't like the program or its a cloudy day just hit the remote to open it all the way. The service reps with VELUX are great. I could get through to them every time on the phone anytime I had a question with programming and very helpful. After about 11/2 years I was having a problem with the blind motor and talked to the rep on the phone and they sent me a brand new blind unit. I had my contractor install the first one and didn't want to mess it up so I was willing to pay Velux to install for me. I called them back and said I want a Velux trained guy to install it and the rep came out and installed for free since it was still in the warranty period. The Velux Rep also told me that who ever did the flashing did not do it correctly and should get it fix and showed my why. The only thing was weird with there service call is that you have to give them your CC number and precharge $150 and that worried me a little since they said they would do it for free, but they did not charge me. January 11, 2014
Rated 5.0 out of 5.0 by Good quality product, clear installation instructions, great value for the money. We had two installed by our roofer. He said that these were the first Velux skylights that he's installed, and that the quality and flashing kits were much improved over the ones he'd done in the past. He has over 25 years experience as a roofer and has installed all types of skylights...he said that these were top-notch and he was pleased with the multi-layered leak protection. From the outside, the skylights have a low profile and they look clean and modern. I have an homeowner's association and they would not have allowed me to use the big white bubble type skylights; these look nicer and they blend in nicely. It rained the day after installation, and several times since then. No leaks and the water just rolls right off. From the inside, I love all the natural light. The light is not hot and there are no ultra-bright spots in the room. I love standing in my kitchen, looking up and watching the clouds roll by. One night, I got up and noticed a bright light in my kitchen. It was the full moon glowing through the skylight. I plan to buy and install the solar shades before summer comes. I love that the Velux skylights have the clips pre-installed, so that all I'll have to do is snap them in. I wanted skylights over my kitchen for more than 10 years. My only regret is that I waited so long. These are gorgeous. December 23, 2011
Rated 5.0 out of 5.0 by Never leaks, just follow the instructions. These skylights take the risk out of leaky skylights completely. Installed 3 of them in different parts of the house. Needed the special flashing kits for tile roofs, but it was a slam dunk to install and none of them leak. Worth every penny. July 6, 2014
Rated 4.0 out of 5.0 by Good product, delivered quickly and in good shape This window was delivered within 3 business days of my ordering it. The Velux installation instructions were fairly easily followed, as was the YouTube video. Have only had the window installed for a few weeks, so can't comment on durability or other product quality aspects that will take time to reveal themselves. September 22, 2015
Rated 4.0 out of 5.0 by Excellent Window Installation was simple after watching the youtube video and following the instructions. The flashing kit was mad for a larger window so there was extra material. Which was fortunate because we needed the extra becasue one strip of the sealing tape got messed up. Folks getting larger windows my want to order an extra roll of the sealing tape. finishing form the inside was a breeze with the slots on the windows for the sheetrock. March 10, 2015
Rated 1.0 out of 5.0 by Don't buy this product Leaked - was removed and re-installed twice, it still leaks. I contacted Velux and they demand 137.00 dollars just to look at the faulty product. The warranty is usless. Don't buy Velux products. The skylight leaked after only 12 months. May 27, 2014
Rated 5.0 out of 5.0 by Nice skylight! Easy to install! This a great product! If I had one wish: the mounting flange is very small. It is hard to nail in so close to frame. I put a couple small dents in the metal nailing it down. Coupled with the flashing kit I am sure this skylight will never leak. August 4, 2013
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