Fixed Curb Mount Skylight with Laminated LowE3 Glass, Solar Room Darkening Shade - 2230 (Outside Curb: 25.5 x 33.5 in)
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22½ x 30½, FCM 2230, Fixed Curb Mount Skylight with Room Darkening Shade

VELUX
SKU:
FCM 2230 2004S
$454.00
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Fixed Curb Mount Skylight with Laminated LowE3 Glass

Transform your space with abundant natural light using the VELUX FCM 2230 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 appropriate VELUX flashing 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"): 25.5" x 33.5" (Outside Curb Dimensions)
  • Roof Pitch: 0 - 60 degrees
  • Glass Type: Laminated LowE3 Glass
  • Shade Included: Yes, Solar Powered Room Darkening Shade
  • Installation: Curb Mounted
  • Flashing Kit: Sold separately - ECL 2246 0000C, ECW 2246 0000C
  • Approvals: Florida Product Approval FL13303, Texas Department of Insurance TDI SK03, ECL 2246 0000C, ECW 2246 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 appropriate VELUX flashing on a pitched roof.

FCM 2230 Size Code FCM 2230
Inside curb (W"xH") 22 1⁄2 x 30 1⁄2
Outside curb (W"xH") 25 1⁄2 x 33 1⁄2
Maximum skylight clearance (W"xH") 26 5⁄8 x 34 5⁄8

 

 

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VELUX FCM 2230 Fixed Skylight

Balanced Light, Trusted Performance, Curb-Mount Simplicity

The VELUX FCM 2230 Fixed Curb Mount Skylight offers a clean, modern solution for adding natural light to smaller spaces like hallways, closets, bathrooms, or compact living zones. Sized for flexibility and built for longevity, this model delivers even daylight distribution without heat gain—making it a favorite for both retrofit and new construction projects.

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Features & Benefits of the VELUX FCM 2230

Key Features:

  • Fits a 22½" x 30½" inside curb opening
  • Energy-efficient Low-E³ glass options: tempered or laminated
  • Compatible with roof pitches from 0:12 to 20:12 (0° to 60°)
  • Ideal for shingle, tile, or metal roofing materials
  • Simple curb-mount installation for remodels or replacements

Performance Benefits:

  • Allows natural light to brighten small or narrow rooms
  • Improves indoor visibility without added glare
  • Reduces energy use by cutting down on daytime lighting needs
  • Eligible for the VELUX 10-Year No Leak Warranty when installed with approved flashing kits

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.