When finishing a basement or evaluating your home’s lower-level spaces, egress windows are a suitable option. These windows bring in natural light into dark areas, and they provide a viable exit route in an emergency. At Window Concepts, our team explains how they work, what building codes they require, and which styles are available to help you make the right decision for your specific space. Here are a few ways to maximize natural light and safety with egress windows:
Egress Window
An egress window should meet minimum size requirements set by local building codes to function as an emergency exit. They are based on the dimensions a person needs to pass through quickly, without assistance, in a fire or other emergency. Most building codes align with the International Residential Code (IRC); this specifies that an egress window must have a minimum net clear opening. Finished basements used as general living space also need to meet egress standards, so checking with your local building department before beginning a project is key.
Natural Light
Soil may surround outer walls, and standard basement windows sometimes sit close to grade level; this leaves little room for sunlight to enter at a useful angle. A window well provides a curved or rectangular excavation dug around the window’s exterior. It allows the window to sit below grade while still being exposed to open air. Larger wells with reflective or light-colored linings help improve the amount of light that bounces down into the space.
The size of the egress window directly affects how much light enters the room. Because egress windows must meet minimum opening dimensions, they should be larger than most standard basement windows. This means a code-minimum egress installation may allow more light than the narrow horizontal sliders.
Casement windows open like a door, with hinges on the side. These windows open wide, so they meet egress requirements with a relatively compact frame while delivering both good light and full ventilation. Hopper windows, hinged at the bottom and opening inward, offer another option for basement installations. Their compact dimensions work well in tight below-grade spaces where an outward-swinging window may not work.
Window Style
The window style determines if it will meet egress standards. Fixed windows do not open at all and cannot serve as an emergency exit regardless of their size. The window must be operable, meaning it opens without special tools or knowledge, and it needs to maintain the minimum clear opening dimensions specified by code. At Window Concepts, several window styles are available that can meet egress requirements depending on the installation location and the specific measurements of the opening.
- Casement windows: These offer airflow and a tight seal when closed. This makes them an option when a basement has limited wall access. Their full-opening design makes them one of the easiest window styles to use in an egress application. They also offer maximum airflow, and this makes them an energy-efficient option.
- Awning windows: This type is hinged at the top and opens outwards. They allow ventilation, which makes them a useful choice for bathrooms and smaller areas; this includes lower-level spaces where weather protection matters. These types of windows also meet egress requirements.
- Hopper windows: The hopper style is hinged at the bottom and opens inward. They offer compact and efficient features, making them a suitable choice for basements and laundry rooms. Their simple operation and tight seal also contribute to energy efficiency. This matters in below-grade spaces that can be difficult to heat and cool.
- Sliding windows: These work well in wide openings where an outward-swinging window won’t, and their smooth operation makes them accessible. Depending on the specific model and configuration, sliding windows can also meet egress requirements. This includes when one panel opens to the required clear dimensions.
Choose Egress Windows Today
Egress window projects involve energy-efficient window services and multiple styles; this includes casement, hopper, awning, and sliding options. If you have a basement that lacks natural light, does not currently meet egress requirements, or has aging windows that are not performing adequately, consult our team at Window Concepts. The process begins with a free quote, after which the team takes precise measurements before scheduling installation. For questions or to get started, call (847) 621-2680 or fill out the contact form on our website.