Those things are expensive. Usually big 4 inch blocks of foam. Pain getting off, though. Especially when you get older and the thing is 8 foot square. I like my pulley arrangement. I tried incorporating an old garage door opener, but it was too long, not enough muscle, and didn't have enough travel to accommodate the pulleys.<quoted text>
Thanks for the tip. Problem is, I'm not very handy.
I have a good cover, it folds in the middle and has handles on either end, so I can lift and remove any rainwater. Fairly light, I don't know what it's filled with. It also hugs well, no seal but works well. I bought it....
Rainwater? Leaky roof, or condensation dripping back down? I put a roof vent in that room to help let humidity escape. It's a 324 sq ft room. With shower, toilet and sauna room. The skylight above does leak on occasion, but that cover arrangement protects when down and when it is up. I did a lot of work bringing that back into shape. Cedar shake for interior walls that were dusty, moldy, and with a hundred empty beer bottles behind them. The owner did it himself and he drank a lot. Cleaned and disinfected the cedar shake, put plastic on the wall as a vapor block, then painted the shake. Has worked out real nice. Humidity and mold are under control.