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SKU:
FS C04 2004S
21 x 37⅞, FS C04, Fixed Deck Mount Skylight with Room Darkening Shade
VELUX
$624.00
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VELUX
21 x 37⅞, FS C04, Fixed Deck Mount Skylight with Room Darkening Shade
VELUX FS C04 Fixed Deck Mount Skylight
Product Overview:
The VELUX FS C04 fixed deck mount skylight brings natural light into your home while maintaining energy efficiency and privacy. It features laminated LowE3 safety glass and an integrated solar-powered room darkening shade, making it a perfect solution for brightening spaces without compromising comfort.
Key Features:
- Laminated LowE3 Glass: Provides safety, UV protection, and energy efficiency with a 10-year hail warranty.
- Solar Room Darkening Shade: Double-pleated white blackout cloth with honeycomb design and aluminum backing effectively blocks sunlight and insulates year-round.
- Deck Mount Installation: Low-profile design mounts directly to the roof deck for a secure, watertight fit on roofs pitched 14° to 85°.
- Energy Efficient: Integrated solar shade improves energy performance by up to 40%, helping manage heat gain and loss throughout the year.
- Certified Protection: Meets Florida Product Approval FL13308 and Texas Department of Insurance TDI SK03 requirements.
- Warranty: Backed by a 10-year installation warranty when installed with VELUX flashing (sold separately).
| FS Sizing Chart | C04 |
| Outside frame (W"xH") | 21 1⁄2 x 38 3⁄8 |
| Rough opening/ Finished frame (W"xH") | 21 x 37 7⁄8 |
Built on Decades of Daylighting Excellence
For over 80 years, VELUX has been the global leader in skylight innovation—pioneering daylighting solutions that transform homes, improve energy efficiency, and elevate architectural design. Known for their unmatched craftsmanship and commitment to sustainability, VELUX skylights are trusted by homeowners, builders, and architects alike for delivering long-term performance and elegant design.
VELUX skylights are more than just a source of natural light—they’re engineered systems designed to integrate seamlessly into your roof, protect your home from the elements, and create a healthier indoor environment. From advanced glass technology to weather-tested durability, every VELUX product reflects a heritage of innovation backed by industry-leading warranties and global certifications.
The VELUX FCM C04 Fixed Curb Mount Skylight continues that tradition in a compact, versatile form. Ideal for mid-size rooms and smaller roof sections, it brings abundant natural light into the home while preserving energy performance and visual appeal. With its fixed design and curb-mounted configuration, the C04 is a dependable solution that fits easily into new builds or renovation projects.
Whether you’re looking to brighten your home, increase energy efficiency, or invest in a product that’s built to last, the VELUX FCM C04 skylight delivers with clarity—inside and out.
Flashing
Roof Pitch
Curb Mount
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.
