Egress Window

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Egress Window

What is Egress Window?

Egress Window, A window designed to provide emergency exit from basement bedrooms and other below-grade living spaces

Description

An egress window is a specially sized window designed to provide emergency exit from basement bedrooms and other below-grade living spaces, meeting building code requirements for safe evacuation during emergencies. These life-safety features ensure occupants can escape quickly while also providing natural light and ventilation to basement areas converted to habitable space.

Purpose includes providing emergency escape routes, meeting building code requirements for basement bedrooms, enabling natural light in below-grade spaces, and allowing rescue access for emergency personnel. Proper egress windows are essential for legal basement bedrooms and occupant safety.

Code requirements specify minimum opening dimensions, maximum sill height above floor, and minimum net clear opening area for safe egress. These requirements ensure windows are large enough for occupant escape and emergency personnel access.

FAQs

  • Do all basement bedrooms need egress windows?

    Yes, building codes require egress windows or doors for all basement bedrooms for emergency escape.

  • Can existing basement windows be converted to egress?

    Sometimes, but often requires enlarging the opening and installing proper window wells – professional evaluation needed.

  • How big does an egress window need to be?

    Minimum 20" wide, 24" high, with 5.7 sq ft net clear opening area, and sill maximum 44" above floor.

  • Do egress windows need window wells?

    Yes, below-grade egress windows require properly sized and drained window wells for safe access.

  • Can egress windows be used for natural light?

    Yes, egress windows provide both emergency exit capability and natural light for basement spaces.

  • What type of window works best for egress?

    Casement windows typically provide the largest opening, but sliding and double-hung can work if properly sized.

  • Do egress windows affect home insurance?

    Legal egress windows may reduce insurance costs and are required for basement bedrooms to be considered habitable space.

Fun Fact

Fun Fact: Egress window requirements were strengthened after tragic fires in the 1970s highlighted the need for better emergency exits from basement bedrooms.

CSI Code

08 51 13

NAHB Code

850