The VELUX FCM 2246 Fixed Curb Mount Skylight, and its integrated solar-powered room darkening shade, designed for both flat and sloped roofs, it's ideal for replacing existing curb-mounted skylights, including older plastic bubble types.
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22½ x 46½, FCM 2246, Fixed Curb Mount Skylight with Room Darkening Shade

VELUX
SKU:
FCM 2246 2015 S
$434.00
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VELUX FCM 2246 Fixed Curb Mount Skylight

Transform your space with abundant natural light using the VELUX FCM 2246 2004S Fixed Curb Mount Skylight. This non-venting skylight is an economical solution for visually expanding rooms, and its integrated solar-powered room darkening shade offers effortless light control. Designed for both flat and sloped roofs, it's ideal for replacing existing curb-mounted skylights, including older plastic bubble types.  

Key Features & Benefits:

  • Fixed Skylight Design: Provides ample natural light to visually expand and transform any room.  
  • Integrated Solar-Powered Room Darkening Shade: Offers effortless control over incoming light with a wireless, solar-powered operation, eliminating the need for wiring.
  • Enhanced Energy Efficiency: The solar-powered shade helps block the sun's heat in summer and retain interior heat in winter, improving the skylight's overall energy efficiency by up to 40%.
  • Standard Laminated LowE3 Glass: Comes with a 10-year hail warranty against glass breakage, providing added safety and peace of mind.
  • Room Darkening Shade: Features a white double-pleated blackout cloth with a honeycomb structure and interior aluminum coating to block even the brightest sunlight.  
  • Versatile Curb Mount Design: Suitable for installation on both flat and sloped roofs, making it perfect for replacements.  
  • VELUX 10-Year Installation Warranty: When installed with the appropriate VELUX flashing kit (sold separately) on a pitched roof.
FCM 2246 Sizing Chart FCM 2246
Inside curb (W"xH") 22 1⁄2 x 46 1⁄2
Outside curb (W"xH") 25 1⁄2 x 49 1⁄2
Maximum skylight clearance (W"xH") 26 5⁄8 x 50 5⁄8
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VELUX FCM 2246 Fixed Skylight

Balanced Light, Trusted Performance, Curb-Mount Simplicity

The VELUX FCM 2246 Fixed Curb Mount Skylight is a versatile solution for introducing natural light into medium-sized interior spaces. With a 22½" x 46½" inside curb opening, this model is well-suited for kitchens, bedrooms, or multipurpose rooms that benefit from additional daylight without sacrificing insulation or efficiency.

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Features & Benefits of the VELUX FCM 2246

Key Features:

  • Designed for a 22½" x 46½" inside curb opening
  • Choice of Low-E³ tempered or laminated glass to reduce heat transfer and block UV
  • Installs on roofs with a pitch between 0:12 and 20:12 (0° to 60°)
  • Compatible with most roofing materials including asphalt, tile, and metal
  • Curb-mount format simplifies both new installs and retrofit replacements

Performance Benefits:

  • Delivers consistent, natural daylight to deeper interior zones
  • Reduces dependency on artificial light during daytime hours
  • Enhances interior comfort with glare-free, evenly distributed illumination
  • Eligible for the VELUX 10-Year No Leak Warranty with proper flashing

Transform your space with natural daylight that performs—choose the VELUX FCM 2246 for energy-smart design, proven curb-mount reliability, and effortless integration. Shop today at Skylights2Go.

Curb Mount

A curb-mount skylight is designed to install over a raised frame—called a curb—that sits above the roof surface. This type of skylight is ideal for both new construction and retrofit applications, especially when replacing older units. Unlike deck-mounted models, curb-mounted skylights are elevated off the roof deck, allowing for flexible sizing and easier replacement without disturbing the roof structure.

Roof Pitch

Compatible with low- to steep-slope roofs ranging from 0:12 to 20:12 pitch (0°–60°). Fixed curb mount skylights are ideal for installations where a site-built curb is already in place or required—common in both retrofit and new construction. Suitable for most roofing materials, including asphalt shingles, tile, and metal. Best used when replacing older dome skylights or integrating into commercial and residential projects with existing curbs.

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.