The egress well must not interfere with the egress window fully opening. The distance from the egress window to the back of the Egress well must be at least 36" The minimum area of the egress well must be 9 square feet.
Egress ladders and or steps are required on window wells deeper than 44" and must be permanently attached. An egress ladder or step may encroach into well up to 6". The rungs of an egress ladder must be 12" wide or greater and must project a minimum of 3" away from the back wall, but can't exceed 6" from the back of the wall. Shall be easily opened or removed from the inside of the egress well without special tools.
These requirements are intended to make sure an average, able bodied person, would be able to both fit through and lift themselves up, and out the window. Please keep in mind whom may be using the living space in your basement and adjust these requirements as you feel necessary.
The law only dictates the minimum required by law and may not be what best suits your needs. Use your common sense when picking the egress window size and egress window well size that you feel is right for you and your family. This is due to the sash, which slides horizontally. Sliding windows open by shifting the sash from left to right. Some Pella models include extra-durable tandem nylon rollers.
These rollers give even more effortless operation. This window must have at least 16 square feet of net opening. Basement escape windows are a must-have for downstairs living spaces. They can be a lifesaving tool in an emergency. Meet with your local Pella professionals to find the right solution when you're redoing your basement. Study commissioned by Pella, You are now subscribed to Pella offers and inspiration.
There was an error saving your information. Find a Showroom Find a Showroom Find. Your Preferred Showroom. Request Consultation. Call Now. What Are Egress Windows? 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 square inches—or 5. A sill no more than 44 inches off the floor. Open the window as wide as possible. Measure the width and height of the opening.
Multiply the width by the height. Other Requirements for Egress Windows in Basements Because basement windows are a way out, they must open from the inside. Make sure to measure the window opening and not the rough opening for the window or the entire window, including the frame. In addition to being 5.
Egress windows are also important sources of light and ventilation, which are also requirements for basement windows. According to IRC code, The area of the glass portion of the window should be at least 8 percent of the total floor area to allow for enough natural light to enter the basement.
That 8 percent minimum can be reached with an egress window plus other windows in the basement. The window opening should be at least 4 percent of the floor space to allow for adequate ventilation. One of the easiest ways to determine if the emergency exit window you have or are considering purchasing is large enough to meet IRC Code requirements for basement egress windows is to use the chart below, which uses the width and height of the window to determine its total square footage. The chart shows minimum window dimensions for both below grade and at grade egress windows.
Keep in mind that all windows must have a minimum window height of 24 inches and a minimum width of 20 inches.
A single-room basement below grade level must have at least one egress window. Basements with multiple rooms must have an egress window for each room.
An egress window is required even in bedrooms in walk-out basements that have a patio door. Of course, the dryer must be properly vented to ensure the heat and humidity created by the dryer and any exhaust gases if the dryer is gas are sent to the exterior of the home.
Basement windows come in a range of different types, ranging from casement to double-hung to in-swing windows. Single-hung and double-hung windows consist of two separate sashes, each of which has its own frame. The interior sash is inset from the upper sash, allowing one or both windows to move up or down to open. With a single hung window, only the lower sash moves up or down to open the window. A double-hung window allows both sashes to move, allowing you to open the top or bottom of the window.
This type of window, which is popular in large rooms, swings outward like a door using a crank with a rotating handle. With their crank-style mechanism of opening the window, casement windows are easy to operate for those who struggle to open a standard single or double-hung window.
And, with their slimmer frames, they allow more light in than any other style of window. Per their name, in-swing windows, which look similar to a casement window, open into the room instead of outward. Rather than a crank, an in-swing window typically has latches that hold it closed. When the latches are released, the window swings inward into the basement. This type of window is ideal for below-grade egress windows that may have well prevented a casement window from opening outward.
Building code also requires a smaller well for an in-swing window than a casement window.
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