Removed the slide out awnings and unrolled enough to lay the awning on top of the RV, cleaned the seals and flaps, also treated them with 303. Couldn't believe how much grit and grime I got off. No way to get at them to do a good enough job without removing the awning, the 12.5' awning was the hardest to handle alone but I got it done. You need to pin the roller so it doesn't release the spring tension before releasing any hardware. Over all not too bad a job, took about four hours to do three sets of slide seals. The only negative about the slide awnings is needing to get them out of the way to clean and treat the seals. Below is a picture of the awning disconnected from the slide laid up on the roof. The seals have been cleaned and treated with 303.