I installed these early last season, and haven't had a problem. They come with a rubber sealant gasket that protects the small holes that you drill. Saw an awniing unfurl on a 5'er being towed on an interstate, and it was enough of a mess that scared me into buying the kits. I have a 19' awning, so I needed two straps.
2014 RAM 2500 Laramie 4x4 Quad Cab w/Cummins Turbo Diesel, 2009 Rockwood 2607, and 3 'yaks!
300W of Suntech Solar, a Rogue MPT-3024 Controller, and a Xantrex PW2000 Inverter