yeah...unfortunately, covering my pontoon is the lesser of two evils. Covering my pontoon has resulted in "scorching" the vinyl of the rolled bumper edging. It's because the cover heats up excessively where it touches the vinyl. I tried attaching pool "noodles" between the cover and seating....no luck...they wouldn't stay adhered to the cover....yep, I tried multiple adhesives.
Leaving it uncovered resulted in pollen, dirt, moss on the carpet, mildewed life jackets, etc. I even left my double bimini top up, didn't help...
Not trying to be the bad guy here......just relating my experience.
My pontoon furniture butts up against the railing and extends above the railing, which is the primary problem....and doesn't let individual covers work.....
Here's a pic of my sundeck cover.....boat is an '06 pontoon......I guess 16 years isn't too bad though...
Anyone have a remedy, i'm ready to listen....'cause i'm looking at furniture also....