Originally Posted by jppp
Hypervent aka "cedar breather". I've covered a roof with it before nailing cedar shake on. Does the same for the roof as .it does for your cushions.
Tried some cedar breather and roof vent products but they collapsed after use and did not want to re-bound. It lasted us about three weeks earlier this summer. Lucky for us I got it for free, was worth about that..... Hypervent and the other products designed for this use a denser membrane that re-bounds and resists crushing far better. I had the two side by side and the differences are quite a bit.
We are back to using Dri-Dek
under the v-berth as nothing we've found holds up as well or stay in place as well. You have to custom cut it but once you do it will last nearly indefinitely...