Rough Opening: 22-1/8" x 46-7/8"

GXU CK06 Roof Access Window with Laminated LowE3 Glass

Bring daylight, ventilation, and convenient roof access to your finished attic or upper-floor space with the GXU CK06 Roof Access Window from VELUX. Designed for installation within reach, this compact roof window enhances both form and function in spaces with sloped ceilings—like lofts, bonus rooms, and finished attics.

Side-Hinged Access: Opens up to 90° and can be hinged on either side to suit your layout.
Everyday Ventilation: Integrated flap allows air in even when the window is closed—ideal for rainy days.
Laminated Low-E3 Safety Glass: Delivers superior energy performance and a 10-year hail warranty.
Compact Footprint: Offers access and ventilation without meeting egress sizing—perfect where space is limited.
Durable Interior Finish: White polyurethane coating resists moisture and blends cleanly into most interiors.
Weather-Ready Installation: Compatible with VELUX EDL/EDW flashing kits for a watertight seal on roof pitches from 15°–85°.

Whether you're renovating an attic into a livable space or adding fresh air to a hard-to-reach area, the GXU CK06 delivers smart design, durable performance, and the trusted VELUX quality.

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GXU CK06 Dimensions	CK06
Outside frame (W"xH")	21 5⁄8 x 46 3⁄8
Rough opening/ Finished frame (W"xH")	22 1⁄8 x 46 7⁄8

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.

Energy Efficient for Year-Round Comfort

The GXU CK06 Roof Access Window is designed to enhance your home’s energy efficiency. With its high-performance Laminated Low-E3 glass, the window keeps your home well-insulated, reducing the need for extra heating or cooling. By optimizing the natural airflow through the ventilation flap, this window helps maintain a comfortable temperature while also lowering your energy costs.

Energy-efficient Laminated Low-E3 glass for optimal insulation
Helps maintain a consistent indoor temperature year-round
Minimizes the need for artificial heating or cooling
Ventilation flap for fresh air and a comfortable environment even when closed

Maximum Airflow and Natural Light

The GXU CK06 Roof Access Window provides a practical and stylish solution for boosting natural light and improving ventilation. Its side-hinged design opens to a full 90° and can be installed with either a left-hinge or right-hinge, allowing you to adapt it to your space. The window's design creates a natural chimney effect, improving air circulation and helping regulate your home’s temperature.

Side-hinged opening with 90° range for optimal ventilation
Customizable left or right hinge installation
Ideal for rooms with sloped walls to maximize natural light
Creates a natural cooling effect for a more comfortable indoor environment