Who uses them and how do you clean them - how often? I bought an 8x20 to go under the awning. A friend had one and i liked it but now husband not so much. He is concerned how to store and clean.
We have one that is supposed to allow air and water through easily - it feels somewhat like a woven plastic material and we use it under our screen room. It's easy to clean with a hose (although it is handy to have a bag to place it in in case you need to break camp in the rain). I'm not familiar with any other type although I know that there is a variety available.