I was told 12'6". I have not measured, and I am not sure if that is to the roof or to the top of the AC units. I will try to check maybe this weekend. I have yet to clean the ac's, dish & vents off so I know I am under 13' 5". Went under a bridge that low a few weekends ago, did make me flinch though.
Bill
2003 28' Show Hauler Motorhome on a 1995 FL 120
www.showhauler.com