Look up window coverings, blinds, shades, etc. in the "search" option at the top of this page. Drop down to Google search and you will have a more complete search of articles posted on the forum. Add my name "Gilda" and you will get results for what I have done. Here's one posting you may like.
https://www.fiberglassrv.com/forums/...des-84963.html
I made roll-up shades out of a solid fabric called Ron-Loc. The fabric is simply cut to size with extra length at the top and bottom to make a "rod holder" and a hem. Add Velcro to the bottom so it "attaches" to the rat fur. There is no need to finish the sides of the fabric as it does not fray. I used an old rod from a small tent frame for the rod, put rubber tips on the ends and just place the rod on top of my existing trailer curtain rod. I simply roll up the shade by hand. This is not a big deal as it is a very short piece of fabric. When I want darkness I unroll it a fasten with the Velcro. While traveling the rod does NOT
fall off if it is in the down and "locked" position. I have found this to be a satisfactory and easy solution. I love to vary my curtains. See other posts. Add my name "Gilda" and you will get results for what I have done. Here's one posting you may like.
https://www.fiberglassrv.com/forums/...des-84963.html