My thoughts are that the stitched seam at the top of the awning's allows water through it, once that water is on the "underside" of that highest point on the awning while it is rolled up, it follows gravity's instructions and simply flows right inside the rolled up awning! I for the life of me however can NOT understand how it flows UP the roll inside the layers of the stored awning so that it can so effectively coat my ENTIRE awning in water, but then again in Florida when it rains.....it RAINS! I have unfortunately simply resigned myself to getting rained on every time I open my awning after storage.
As for cleaning, I have only hit ours twice with the CAMCO awning cleaner I found at Walmart which worked GREAT not a whole lot of scrubbing involved. I do however plan to change to Simply Green or the dollar store awesome stuff because the CAMCO fluid was just too pricey and unless you used it full strength, the Florida mold simply laughed and remained in place :-(
Ed & Chris
Josh & Jaclyn
2012 Suburban LTZ
2013 Rockwood Roo 233S