Model # VS C04 2004

Internet #202038758

Store SKU #475573

VELUX 21 x 37-7/8 in. Fresh Air Venting Deck-Mount Skylight with Laminated Low-E3 Glass


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

  • Glass stays cleaner longer with Neat glass coating
  • Laminated glass meets building codes in out of reach applications
  • 10-year Hail Warranty against glass breakage
$47600 /each
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Frequently Bought Together

Product Overview

VELUX Fresh Air skylights are an energy-efficient way to bring both fresh air and 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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Daylight area (sq. ft.)
Product Depth (in.)
Product Height (in.)
Product Width (in.)
Rough Opening Height (In.)
Rough Opening Width (In.)


Cladding Type
Color Family
Color Family
Flashing Included
Frame Material
Glazing type
Laminated glass
Hardware Included
Insect screen
Low-E (Y,N)
Maximum roof pitch (degrees)
Minimum roof pitch (degrees)
Operation Type
Product Weight (lb.)
Remote Control
Rotates for Cleaning
Severe weather ready
Skylight Mounting Type
Deck Mount
Skylight material
Telescoping control rod
UV protection (%)

Warranty / Certifications

Energy Star Qualified

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Customer Questions & Answers

I have old skylight and the size 28 inch wide and 52 inches long, I measure from the outside and it is installed side

Ways as shown to in the picture , can I use this kind of model velux fresh air venting deck mount?
Asked by: Joe
Since our Deck Mount Skylights have a definitive top and bottom, you will not be able to turn this sideways on your roof deck. If you orient our Deck Mount Skylight sideways on your roof deck, it may cause a leak and void your warranty. Our only Venting Deck Mount unit that is horizontally longer is the VS S01, which is 44-3/4" wide x 27-3/8" tall. Another option is to have a custom made FCM (Fixed Curb Mount) unit. The FCM fits over a site-built curb. To order this specific model, you will need to visit your local Home Depot store and provide an Associate with your outside curb dimension. I hope this information is useful to you. Thank you for choosing VELUX!
Answered by: VELUXCustomerServiceTeam
Date published: 2017-07-25

Does this have a screen to keep out bugs when open? Also, can this be used as a replacement cover of an existing skylight that just needs a new cover?

I am having a new roof installed and need to replace the skylight cover. I would like to use a venting cover rather than the stationary one I currently have.
Asked by: bb77
Yes, this item does have a screen to keep bugs out and it cannot be used a replacement cover.
Answered by: CommunityAnswer
Date published: 2017-03-21

Does the solar powered skylight comes with a solar powered blind and an insect screen?

Asked by: Justventing
No, those products are not included.
Answered by: CommunityAnswer
Date published: 2015-09-29

Which flashing kit do I need (for this skylight deck mounted)

Asked by: SkylightMike
Thanks for the answer. However, I was told by your phone representative that I need a ECB flashing kit for a deck mounted skylight. Is that incorrect?
Answered by: SkylightMike
Date published: 2015-11-06
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Customer Reviews

21 x 37-7/8 in. Fresh Air Venting Deck-Mount Skylight with Laminated Low-E3 Glass is rated 4.6 out of 5 by 8.
Rated 5 out of 5 by from Sky light Easy to install... looks great and produces more then enough sunlight.... have pics to show progress... only took about two hours to install light on roof.... rough opening and sheetrock were already done....
Date published: 2017-04-08
Rated 5 out of 5 by from Best bathroom skylight! This skylight is now in our master bathroom and I love it! It even allows the night sky to be a natural "night light". Be sure to buy the Flashing Kit and the Manual Telescoping Control Rod too.
Date published: 2013-08-05
Rated 5 out of 5 by from Fresh air with my new roof opening skylites--Yay These were the perfect addition to install while replacing my roof. Now I have Fresh Air coming in and more light. The perfect addition is a roof window that opens. If you are considering getting skylites. Make sure they Open.
Date published: 2016-08-23
Rated 4 out of 5 by from great product except for one small thing Nice looking window; installation was not a problem, was installed professionally. Only bad thing is the hook for opening and closing the window. the hook was made of plastic, and it snapped the first time we used it (with telescoping crank). We replaced it with a metal hook that we purchased from Amazon ($7) and that seems to work fine.
Date published: 2014-11-11
Rated 5 out of 5 by from Top o the line stuff Have used many of these over the years and have never Had a leak or other issue,love them.
Date published: 2014-01-07
Rated 4 out of 5 by from Wish I got the Solar I purchased this window & one solar window. If I had the $$ I would have purchased both solar.
Date published: 2016-10-23
Rated 4 out of 5 by from Excellent Service From Home Depot The product is very good, but I'd like to commend Home Depot on the ease of ordering and quick shipping time to get the products I ordered. This is the second order I have placed with HD online and I am very happy with their performance. The Velux deck mounted skylight is a very high quality product. It installs easily and I think it will weather well.
Date published: 2012-02-28
Rated 5 out of 5 by from well made skylight I used to have Velux skylights in my last house, and always though the quality was great. Well, 20 years later they have even gotten better! Simple to install, and great looking. I would highly recommend this product.
Date published: 2015-07-21
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