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Velux FXG 345345 Double Dome Skylight

  • Curb mounted dome skylight
  • For roofs with a pitch between 0 to 60 degrees
  • Skylight frame is encapsulated and 100% thermally broken
  • Gray finish neutral exterior
  • Double acrylic dome design for added insulation
  • Choose from Clear or Tinted Acrylic Dome Configurations

Call for pricing on bronze tinted domes.

Downloadable PDF Files

Upgrade Your Skylights

Upgrade Your Skylights

Flashing Kits

Flashing Kits

Install a Velux flashing kit with your skylight and get a 10 year no leak warranty.*

Install a Velux flashing kit with your skylight and get a 10 year no leak warranty.*

Velux Curb Mounted Skylight Flashing

Shingle, Shake & Slate Roofs

Tile Roof Skylight Flashing

Tile Roofs

Velux Curb Mounted Skylight Flashing

Shingle, Shake & Slate Roofs

Tile Roof Skylight Flashing

Tile Roofs

Solar Skylight Shades

Solar Skylight Shades

Add solar powered shades to your skylights to qualify for the solar tax credit.  Shade upgrades include remote control. Having your shades factory installed now will save you $100 compared to an installation kit.

Add solar powered shades to your skylights to qualify for the solar tax credit.  Shade upgrades include remote control. Having your shades factory installed now will save you $100 compared to an installation kit.

Light Filtering White Skylight Shades

Light Filtering - White

Light Filtering Sand Skylight Shades

Light Filtering - Classic Sand

Room Darkening White Skylight Shades

Room Darkening - White

Room Darkening Beige Skylight Shades

Room Darkening - Beige

Light Filtering White Skylight Shades

Light Filtering - White

Light Filtering Sand Skylight Shades

Light Filtering - Classic Sand

Room Darkening White Skylight Shades

Room Darkening - White

Room Darkening Beige Skylight Shades

Room Darkening - Beige

Velux FXG 345345 Double Dome Skylight

$533.00$540.00

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Velux FXG 345345 Double Dome Skylight Product Details

Velux FXG 345345 Double Dome Tinted Acrylic Skylights

Step into a world of natural light with the Velux FXG 345345 Skylight. This model, with outside curb dimensions of 37 1/2 x 37 1/2 inches and a maximum skylight clearance of 38 11/16 x 38 11/16 inches, is a perfect choice for those seeking a compact yet impactful skylight solution.

The FXG 345345 shares the signature features of its larger counterparts, including a fixed, double dome acrylic design that ensures both durability and clarity. This model offers the same standard glazing options—clear over clear, clear over white acrylic, and the specialty bronze over clear glazing—allowing for a personalized touch to any space.

Ideal for roof pitches ranging from 0° to 60°, this curb-mounted skylight integrates smoothly into various architectural styles. The encapsulated inner frame is 100% thermally broken, providing excellent energy efficiency and reducing heat transfer, which is vital for maintaining a comfortable indoor environment throughout the year.

Finished in a subtle neutral gray, the Velux FXG 345345 Skylight complements your roofing while illuminating your space with natural light. Whether for a cozy residential room or a smaller commercial space, this skylight delivers the renowned quality and innovation of Velux in a size that’s perfect for more intimate settings.

Embrace the beauty of natural lighting with the Velux FXG 345345 Skylight – where compact dimensions meet grand visions.

Manufacturer

Velux America Inc.

Model

Velux FXG

Model Size

345345

Outside Curb Width (in.)

37 1/2

Outside Curb Length (in.)

37 1/2

Maximum Clearance Width (in.)

38 11/16

Maximum Clearance Length (in.)

38 11/16

Curb Mount Venting Type

Fixed Non-Venting

Dome Type

Bronze Over Clear Acrylic Dome, Clear Over Clear Acrylic Dome, Clear Over White Acrylic Dome

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How to Measure a Curb Mounted Skylight

Velux Curb Mounted Skylights

  • Clean exterior profile provides natural light without obstructing roofline.
  • For flat roof installations or roofs with up to a 60 degree pitch
  • Seamlessly pairs with VELUX skylight shades for optimal light control
  • Flashing kit required for 10 Year No Leak Warranty
  • Eligible for Federal Solar Tax Credit with the addition of Solar Shades

Shop For Curb Mounted Skylights by Functionality Type

Velux Curb Mounted Skylights

The No Leak Skylight

Three Patented Layers of Water Protection

  1. Pre-attached gasket provides a tight seal for leak proof installation.

  2. Adhesive underlayment for secondary leak protection in the harshest weather environments.

  3. Skylight flashing specifically engineered for easy installation and primary water protection.