
21 x 70⅞, VSS C08, Solar Powered Venting Deck Mount Skylight with Room Darkening Shade
VELUXVELUX VSS C08 2004S Deck Mount Solar Powered Skylight – Fresh Air, Natural Light & Smart Technology
Enhance your home with the VELUX VSS C08 2004S Deck Mount Solar Powered Skylight, designed to bring in abundant natural light and fresh air while improving energy efficiency. Ideal for homes in Dallas-Fort Worth, Texas, and beyond, this skylight combines cutting-edge solar technology with effortless operation for a healthier and more comfortable indoor environment.
Key Features & Benefits:
- Solar-Powered Operation – No wiring required. The built-in solar panel captures sunlight to power the skylight, with a backup battery for continuous operation.
- Remote-Controlled Ventilation – Easily open and close your skylight with the included VELUX remote control, allowing for natural cooling and improved indoor air quality.
- Integrated Rain Sensor – Automatically closes the skylight at the first sign of rain, offering peace of mind and weather protection.
- Energy-Efficient Design – Equipped with high-performance Laminated LowE3 Glass, blocking UV rays while maintaining indoor comfort and reducing energy costs.
- Seamless Deck Mount Installation – Designed for roof pitches between 14° and 85°, providing a sleek, flush look that blends with your roofline.
- Now with Integrated Blinds – VELUX solar-powered blinds enhanced light control and insulation.
Why Upgrade to a Solar Skylight?
Upgrading to the VELUX VSS C08 2004S means reducing reliance on artificial lighting and air conditioning while benefiting from smart automation. Whether you're replacing an outdated skylight or installing a new roof window, this model delivers modern convenience, improved ventilation, and a bright, airy atmosphere in any living space.
Transform your home with natural light and effortless ventilation—upgrade to the VELUX VSS C08 2004S Deck Mount Solar Powered Skylight today!
Solar Powered "Fresh Air" Skylights (VSS) - Deck Mounted
VSS C08 Sizing Dimensions | C08 |
Outside frame (W"xH") | 211⁄2 x 541⁄16 |
Rough opening/ Finished frame (W"xH") | 21 x 54 7⁄16 |
Want more control? Check out the remote control upgrades!
VELUX 10-Year Installation Warranty
VELUX flashing is designed to perfectly integrate with VELUX skylights, creating a weathertight seal that protects your home from leaks and water damage. By using VELUX-certified installers and genuine VELUX flashing, you can be confident that your skylight is installed correctly and to the highest standards.


Deck Mount
A deck-mount skylight is designed to be installed directly onto the roof deck, creating a low-profile, seamless look. Unlike curb-mounted skylights, deck-mounted models sit closer to the roofline, improving energy efficiency and aesthetics.

Deck Mount Roof Pitch
Best for steep-slope roofs with a pitch of 3:12 to 137:12. Ideal for homes with asphalt shingles, tile, or metal roofs. Great for new construction or full roof replacements where a curb isn’t needed.

Flashing
Step Flashing (EDL) – For asphalt shingles, wood shake, and slate roofs (1/2" max thickness).
High-Profile Flashing (EDW) – For tile roofs over 3/4" thickness.
Metal Roof Flashing (EDM) – Designed for standing seam and corrugated metal roofing.
Copper Step Flashing (EDL COPPER) – Premium option for high-end roofing materials.