Twins batter Randy Bush hit a ball off the roof in 1983. The ball was caught in foul territory for an out by Toronto Blue Jays catcher Buck Martinez. Rob Deer hit two such flyball outs to shortstop in consecutive at bats on May 30, 1992. It should have been a homer, but Kingman was only credited with a double. Balls bounced very high off the carpet that was used from 1982 to 1986.
More home runs tend to be hit when the air-conditioning is turned off.
A Journey Through the Fields of Baseball Magic by Ron Smith and Kevin Belford. Ballparks by Robert Von Goeben and Red Howard. A Design and Development Guide by Geraint John and Rod Sheard. Plain Talk and Uncommon Sense about Cities and Baseball Parks by Philip Bess. The Complete 4 Sport Stadium Guide by the Sports Staff of USA Today.