Did you know an egress window offers an added layer of safety to your home? Find out why your home needs them. Compare costs, benefits, reasons to install now..Egress Window Wells. Egress window wells are required where the bottom of the egress window is below ground level. 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 ” The minimum area of the egress well must be square feet..TAFCO WINDOWS Egress Left Hand Sliding Vinyl Replacement Window keeps your ba.t or barn warm in the winter and cool in the summer..To inform you why and where you need egress windows and how big they should be. To alert you to the fact that, by today’s standards, your bedrooms and ba.t may very well not have proper sized egress windows. To help you choose the right egress windows and their placement as you build and re .