
21 x 26⅞, FS C01, Fixed Deck Mount Skylight with Room Darkening Shade
VELUXVELUX Fixed Deck Mount Skylight with Solar Room Darkening Shade – C01
Fixed Deck Mount Skylight with Solar Room Darkening Shade - C01
The VELUX Fixed Deck Mount Skylight with Laminated LowE3 Glass and Solar Room Darkening Shade is an ideal solution for enhancing your home with natural light while maintaining temperature control. With a solar-powered shade, this skylight helps reduce cooling and heating costs by blocking excess heat in summer and retaining warmth in winter, improving energy efficiency by up to 40%. Its durable construction and easy installation make it a perfect choice for homeowners seeking an energy-efficient and stylish addition to their space.
Key Features:
- Energy-Efficient Design: Solar-powered room darkening shade reduces cooling and heating costs by up to 40%.
- Durable Laminated LowE3 Glass: Provides superior insulation and comes with a 10-year hail warranty.
- Room Darkening Shade: Blocks even the brightest sunlight with its honeycomb structure and interior aluminum coating.
- Easy Installation: Designed for quick setup with the appropriate VELUX flashing kit and roof pitch compatibility between 14° - 85°.
Optional Upgrades:
- VELUX Touch Control (KLR 300 WW): Control all your shades from one touch screen remote.
- VELUX App Control (KIG 300 US): Automated scheduling and smart device control of your VELUX shades.
FS Sizing Chart | C01 |
Outside frame (W"xH") | 21 1⁄2 x 27 3⁄8 |
Rough opening/ Finished frame (W"xH") | 21 x 26 7⁄8 |

A Clear Choice for Effortless Daylight
The VELUX FCM C01 Fixed Curb Mount Skylight offers a simple, elegant way to introduce natural light into smaller spaces—whether it’s a bathroom, hallway, or walk-in closet. With its clean lines and compact design, it integrates effortlessly into a range of roof styles, delivering the clarity and warmth of daylight without compromise.
Designed for curb-mounted applications, the FCM C01 is ideal for projects requiring a dependable, low-profile solution that doesn’t sacrifice performance. The fixed glass pane provides consistent illumination throughout the day, enhancing the atmosphere of your space while minimizing maintenance.
Built with VELUX’s signature attention to quality and longevity, this skylight is a smart, subtle upgrade that makes a lasting impression. Whether you're renovating or building new, the FCM C01 brings thoughtful design and dependable daylighting into perfect alignment.

A curb-mounted skylight is designed to sit on a raised curb structure built on the roof, making it a flexible option for both new installations and replacements. It’s especially well-suited for flat or low-slope roofs and simplifies installation when replacing older units or working with thicker roofing materials.
Compatible with roof pitches from 0:12 to 20:12 (0° to 60°), curb-mounted models are ideal for retrofits, homes with existing curbs, and roofing types like torch-down, TPO, modified bitumen, or tar & gravel.
Flashing options include ECL low-profile flashing for flat or low-slope roofs with membrane or rolled roofing; ECW step flashing for shingle or shake roofs with a minimum 3:12 pitch; and EMW flashing, custom-fit for standing seam and corrugated metal roofs.