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Building codes in most jurisdictions, generally derived from the International Residential Code, require that habitable bedrooms include at least one window or door that meets minimum dimensions for emergency escape and rescue, commonly referred to as an egress opening. These requirements typically specify a minimum net clear opening area, minimum clear width and height, and a maximum sill height above the finished floor, with the exact figures depending on which code edition a jurisdiction has adopted and when the home was originally built. Older homes, including many built decades before current code editions were adopted, were constructed under whatever standard applied at the time, and a bedroom window installed under an earlier code may have a smaller net clear opening than current requirements call for even though it was fully compliant when built.
When a bedroom window is damaged in a storm and requires replacement, questions can arise about whether the replacement must meet current egress standards even if the original window predates them. Many jurisdictions apply an alterations or repair provision under their adopted code that treats like-for-like replacement differently from a full remodel, and some codes specifically address egress compliance when a window opening is being replaced without enlarging the rough opening. How a specific local code official interprets and applies these provisions is a jurisdictional question, not a construction constant, and the answer can differ from one city or county to the next even within the same state. A building permit is often required for window replacement work in the first place, and the permitting process itself is frequently where a jurisdiction’s specific egress expectations become clear to the parties involved in a repair.
From a purely physical and technical standpoint, evaluating an egress question involves measuring the existing rough opening, determining what window styles and configurations are available that would fit that opening while meeting current requirements, and assessing whether meeting those requirements would require modification to the framing, siding, or interior finish surrounding the window. A casement window, for example, often provides more net clear opening area for a given rough opening size than a double hung window, which can matter when a replacement needs to satisfy a minimum clear opening figure that the original window may not have met.
Basement bedrooms present a related but separate egress question, since many basement conversions completed without permits do not include a code compliant egress window or window well, and a storm damage claim can be the point at which this preexisting condition becomes visible during inspection. Distinguishing between damage caused by the storm event and a preexisting condition unrelated to that event is a factual determination based on physical evidence.
An appraiser evaluating a scope of loss that touches on egress considerations focuses on the physical requirements of the opening, applicable manufacturer product specifications, and documented local code provisions where they are known, in order to reach an independent conclusion about appropriate repair. Whether resulting code upgrade costs are covered under a specific policy’s ordinance or law provisions is a coverage question for the policy and the parties.
This article is general education about how the appraisal process commonly works. It is not legal advice, and specific procedures can vary by state and policy.
Russ Lis is a working property insurance appraiser and umpire based in Minnesota, serving clients nationwide. Contact Appraisal Resolution.