I have installed 2 long awnings on my 25' Tradewind. The patio awning was installed by removing a slat from the cover, installing the fabric piece to the rail and the roller to the arms. Then the removed slat is reinstalled.
On the streetside awning a rail was installed and the entire awning was slid into the new rail. The streetside awning was light enough for two people to easily slide into position.
WBCCI President 2016-2017