VELUX FCM 3446 Fixed Curb Mount Skylight – exterior view with rectangular design, low-profile frame, and solar-powered light-filtering shade
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34½ x 46½, FCM 3446, Fixed Curb Mount Skylight with Room Darkening Shade

VELUX
SKU:
FCM 3446 2004S
$639.00

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VELUX FCM 3446 Fixed Curb Mount Skylight

Transform your space with abundant natural light using the VELUX FCM 3446 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: Meets building codes for out-of-reach applications and 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.
  • Code Approvals: Holds Florida Product Approval FL13303 and Texas Department of Insurance TDI SK03.

Technical Specifications:

  • Type: Fixed Curb Mount Skylight with Solar Room Darkening Shade  
  • Rough Opening (W" x H"): 37.5" x 49.5" (Outside Curb Dimensions)
  • Roof Pitch: 0 - 60 degrees
  • Glass Type: Laminated LowE3 Glass
  • Shade Included: Yes, Solar Powered Room Darkening Shade
  • Flashing: Requires separate VELUX flashing kit (sold separately)
  • Installation: Curb Mounted (curb not included)
  • Approvals: Florida Product Approval FL13303, Texas Department of Insurance TDI SK03, ECL 3446 0000C, ECW 3446 0000C, KIG 300, KLR 300

Warranty: Laminated LowE3 glass comes with a 10-year hail warranty against glass breakage. VELUX offers a 10-year installation warranty when installed with the appropriate VELUX flashing kit (sold separately) on a pitched roof. (Consult VELUX documentation for other specific warranty details on this model.)

FCM 3446  Sizing Chart FCM 3446
Inside Curb (W" x H") 34 ½" x 46 ½"
Outside Curb (W" x H") 37 ½" x 49 ½"
Maximum Skylight Clearance (W" x H") 38 ⅝" x 50 ⅝"

Fixed VELUX Skylight – Durable, Energy-Efficient Natural Light for Any Space

Bring natural light into your home with a VELUX Fixed Skylight—engineered for lasting performance, thermal efficiency, and sleek curb appeal. Designed for use on flat or sloped roofs, VELUX Fixed Skylights are a dependable solution for brightening dark hallways, bathrooms, stairwells, and more, without sacrificing energy performance.

Benefits:

• Maximizes daylight without heat gain
• Reduces reliance on artificial lighting
• Increases visual comfort in underlit areas
• Designed to last—backed by the VELUX 10-Year No Leak Warranty

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.

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.

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.

Curb Mounted

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.