Does My Murray Basement Need Them?
A finished basement can be one of the simplest ways to add extra space to your Murray home. It can be an a great area for bedrooms, a family room or a playroom.
As you get ready for your basement remodeling project, take into account that you may need to add bigger windows. Egress windows are large openings that provide a secondary exit in an emergency. They can also add more natural light and make your basement feel more inviting.
Basement bedrooms and living spaces need to have egress windows. Living spaces can be offices, TV rooms or workshops. This mandate also involves unfinished basements.
Why Are Egress Windows Important?
Basement fires occur frequently, with firefighters being called to about 6,500 of them in the U.S. annually.
Time is limited to get out when there’s a house fire. It can become deadly in only 2 minutes and engulf a home within 5 minutes, according to the National Fire Protection Association.
When you only have minutes to get out, big egress windows are a crucial secondary exit.
Basement Windows in Older Homes May Be Too Small
Basements in older homes were not intended to be sleeping or living areas. This is especially true for homes built before World War II.
Homeowners during that era used this type of basement for utility space, laundry and storage.
Depending on its age, your home may predate up-to-date egress window requirements. Or it may have windows with a tinier opening.
If you own an older home, there’s a good possibility it has skinny windows in the basement. Also referred to as hopper windows, these above-ground windows open inward to let in fresh air.
But these windows are small—too small for an adult or fully-outfitted first responder to climb through.
How to Measure Your Basement Windows
Not sure if your present basement windows meet present-day requirements? All you need is a tape measure.
- Open the window as wide as possible.
- Measure the width and height of the opening.
- Multiply the width by the height.
Is your measurement equal to the required 821 square inches—or 5.7 square feet? If not, you need to have larger windows installed.
Requirements for Egress Windows in Basements
Building codes mandate the size of basement windows. This allows for a quick exit in an emergency.
According to the International Residential Code, basement windows must have:
- An opening width of at least 20 inches.
- An opening height of at least 24 inches.
- A net clear opening of at least 821 square inches—or 5.7 square feet.
- A sill no more than 44 inches off the floor.
What if My Basement Windows are Below Ground Level?
If your basement windows are beneath ground level, you will need to have a well dug at the bottom of the window frame. This well should be at least 36 inches wide and 36 inches long. If the well is more than 44 inches deep, it will need a permanent ladder or steps.
Using timber or concrete blocks in the well makes it uncomplicated to install steps. Plus, you can incorporate a couple small landscaping features, like crushed rock or potted plant.
It's all right for basement windows to be under a deck or porch. But there needs to be enough space for an average-sized adult to escape.
There should be at least 36 inches between the top of the window well and the bottom of the deck or porch joists.
Other Requirements for Egress Windows in Basements
Because basement windows are a way out, they must open from the inside. Any screens, grilles or bars need to be removed from the inside without keys or tools.
It’s also vital that basement windows can open entirely. The window sash shouldn’t obstruct the opening. This enables your family to quickly exit—or first responders to quickly enter.
Local requirements for basement windows may vary. Check with Murray building officials to learn more about area guidelines.
Choosing Basement Egress Windows
There are several kinds of windows that work well for basements and satisfy building code requirements.
Casement windows are a good option for not a lot of wall space. These windows open like a door, swinging free to provide a wide opening.
Casement windows open by turning a handle. Pella® casement windows feature a crank that folds away. That way, the crank won't disrupt window treatments.
This window must have at least 8 square feet of net opening.
Sliding windows are great for adding more light to big basements. These windows have to be larger, because the opening is only half as wide as the window. This is due to the sash, which slides horizontally.
Sliding windows open by moving the sash from left to right. Some Pella models feature extra-durable tandem nylon rollers. These rollers give even easier operation.
This window must have at least 16 square feet of net opening.
Talk with the Professionals at Pella of Murray
Basement escape windows are an essential for downstairs living spaces. They can be a lifesaving tool in an emergency. Include our professionals at Pella of Murray. We can help when you're remodeling your basement.
We can also help you find the right window that meets your project, budget and local egress requirements.