What Are Egress Windows?
Does My West Springfield Basement Need Them?
A finished basement can be one of the easiest ways to add more space to your West Springfield home. It can be an a good 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 install wider windows. Egress windows are large openings that give another way out in an emergency. They can also add more natural light and make your basement feel more inviting.
Basement bedrooms and living spaces are required to have egress windows. Living areas can be offices, TV rooms or workshops. This mandate also involves unfinished basements.
Why Are Egress Windows Important?
There’s not a lot of time to escape a house fire. It can become life-threatening in only 2 minutes and overwhelm a home within 5 minutes, according to the National Fire Protection Association.
When you only have minutes to escape, large egress windows are an important 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 made before World War II.
Homeowners at that time used this type of basement for utility space, laundry and storage.
Depending on its age, your home may predate modern egress window requirements. Or it may have windows with a tinier opening.
If you have an older home, there’s a good chance it has narrow windows in the basement. Also known 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-geared first responder to climb through.
How to Measure Your Basement Windows
Unsure if your existing basement windows meet today’s 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.
Does your measurement match 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 fixed ladder or steps.
Using timber or concrete blocks in the well makes it uncomplicated to install steps. Plus, you can include a few small landscaping features, like crushed rock or potted plant.
It's OK for basement windows to be under a deck or porch. But there must be enough room for an average-sized adult to get out.
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 taken off from the inside without keys or tools.
It’s also vital that basement windows can fully open. The window sash shouldn’t impede the opening. This helps your family to quickly exit—or first responders to quickly enter.
Local requirements for basement windows may differ. Check with West Springfield building officials to learn more about area guidelines.
Choosing Basement Egress Windows
There are several styles of windows that work well for basements and satisfy building code requirements.
Casement windows are a good option for less wall space. These windows work like a door, swinging free to provide an ample opening.
Casement windows open by using a handle. Pella® casement windows use a crank that folds away. That way, the crank won't interfere with curtains.
This window must have at least 8 square feet of net opening.
Sliding windows are great for adding more light to large basements. These windows have to be bigger, because the opening is only half as wide as the window. This is due to the sash, which slides horizontally.
Sliding windows open by pushing the sash from left to right. Some Pella models have extra-durable tandem nylon rollers. These rollers provide even more effortless operation.
This window must have at least 16 square feet of net opening.
Talk with the Professionals at Pella of West Springfield
Basement escape windows are a necessity for downstairs living spaces. They can be a lifesaving device in an emergency. Talk with our professionals at Pella of West Springfield. We can help when you're updating your basement.
We can also recommend the right window that matches your project, budget and local egress requirements.