Identical but different terminology. Bottom line, my question is can we make use of just one unenclosed exit from the mezzanine? Yankee Chronicler mentioned: A mezzanine should be inside a room or Room. If this "mezzanine" is enclosed and both of those suggests of egress discharge directly to the outside, https://augustwlaun.elbloglibre.com/38518600/not-known-details-about-mezzbarriers