Yes, egress windows are mandatory for basement bedrooms in Colorado. According to the International Residential Code (IRC) and local Colorado building codes, every basement bedroom and habitable space must have an egress opening to serve as an emergency escape and rescue route.

To be considered code-compliant in Colorado (specifically Centennial and surrounding areas), the installation must meet several specific requirements:

• Opening Size: The window must provide a minimum clear opening of 5.7 square feet.
• Sill Height: The bottom of the window opening (the sill) must be no higher than 44 inches from the finished floor.
• Window Well Dimensions: If the window is below grade, the window well must have a minimum area of 9 square feet.
• Safety Features: If the window well depth exceeds 44 inches, a permanently attached ladder or steps are required for a safe exit.
• Operational Force: The window must be easy to open, requiring no more than 15 pounds of force to operate.

Properly installed egress windows not only ensure legal occupancy and safety but also increase property value by transforming a basement into a legal living space.