Question: what is the difference between a fire barrier and a smoke barrier?
Answer: So, a 2-hour fire barrier must have a minimum of a 1 ½ hour fire protection rating for its openings and a 1-hour fire barrier must have a minimum of a ¾ hour fire protection rating for its openings. ... A smoke barrier will have fire resistant ratings of either ½-hour (Existing Health Care) or 1-hour (New Health Care).