VELUX GGU CK04 Center Pivot Roof Window enhances spaces with its stylish and functional design. It offers easy operation and great views, ideal for rooms with furniture below. This model combines energy efficiency and easy maintenance, making it a top choice for modern living.
- Versatile Size: 21 5/8″ x 38 1/2″ frame
- Center-Pivot Operation
- Accessible Top Control Bar
- Low-Height Installation for Better Views
- ThermoTechnology™ for Energy Efficiency
- Ventilation Flap for Fresh Air
- Easy-to-Clean Outer Pane
Upgrade Your Skylights
Flashing Kits
Install a Velux flashing kit with your skylight and get a 10 year no leak warranty.*

Shingle, Shake & Slate Roofs

Tile Roofs

Shingle, Shake & Slate Roofs

Tile Roofs
Roof Window Shades
Add manually operated roof window shades to your purchase.

Light Filtering - White

Room Darkening - White

Venetian Blinds - White

Light Filtering - White

Room Darkening - White

Venetian Blinds - White
Insect Screens

Shingle, Shake & Slate Roofs

Shingle, Shake & Slate Roofs
Velux GGU CK04 Center Pivot Roof Window
$712.00
Lead Time: approximately 7 to 10 business days


Velux GGU CK04 Center Pivot Roof Window Product Details
VELUX GGU CK04 Center Pivot Roof Window
VELUX GGU CK04 – Your Gateway to Natural Elegance and Efficiency. Discover the perfect blend of functionality and style with the VELUX GGU CK04 Center Pivot Roof Window. It’s an excellent choice for those seeking to enhance their space with natural light and fresh air.
Product Specifications:
- Model Number: Velux GGU CK04 0070
- Dimensions: Outside frame – 21 5/8″ x 38 1/2″, Rough opening/Finished frame – 22 1/8″ x 39″.
Key Features:
- Sized for Versatility: The GGU CK04’s roof window dimensions make it suitable for a variety of spaces, ensuring a snug fit and seamless integration into your roofline.
- Center-Pivot Convenience: Designed for easy operation, this model is particularly useful in spaces with furniture placed directly beneath the window.
- Top Control Bar: Positioned for optimal accessibility, it simplifies opening and closing, enhancing user comfort.
- Optimized for Low Installation: Allows more flexibility in placement, offering panoramic views both when seated and standing.
- VELUX ThermoTechnology™: This technology ensures energy efficiency, providing excellent insulation and an airtight seal, reducing heating costs.
- Secure Ventilation: Features a unique ventilation flap for air circulation, even when the window is closed, ensuring a fresh environment at all times.
- Maintenance Made Easy: The window’s design allows for easy cleaning of the outer pane and hassle-free maintenance of the air filter.
Additional Benefits:
- As with all VELUX products, the CK04 is compatible with a wide range of accessories, allowing for customization according to your functional needs and aesthetic preferences.
- The VELUX GGU CK04 model offers an elegant, practical solution for bringing natural light and fresh air into your home. It combines modern technology with user-friendly features, making it a valuable addition to any space.

Thermo Technology
VELUX ThermoTechnology, a feature of the latest VELUX generation, enhances insulation, achieving a U-value as low as 1.2 for standard roof windows.
This improvement, coupled with an increased pane area, allows up to 18 percent more daylight and greater passive solar heat gain into your home. These new roof windows elevate the standards of energy balance and efficiency to outstanding new heights.
Shop By Roof Window Type

The No Leak Skylight
Three Patented Layers of Water Protection
- Pre-attached gasket provides a tight seal for leak proof installation.
- Adhesive underlayment for secondary leak protection in the harshest weather environments.
- Skylight flashing specifically engineered for easy installation and primary water protection.