Many designers are over-specifying fire protection for structural steel-framed buildings, according to a report by Richard Gewain of Hughes Associates, Inc., and Emile W.J. Troup, P.E., a consultant and structural engineer based in New England. In many cases, the over-specification results in a 25-50% addition in fire protection, which adds approximately $0.25/sq. ft. to the cost of construction.
ever wondered what UL is getting after when they say restrained versus unrestrained? read the full article here:
and the cliff notes version here: