Underside covering is shredding

[Coloradokev]

My 2017 Wolf Pup underside has what looks like plastic tarp material covering the floor insulation. This plastic, black colored tarp material is deteriorating and shredding. Does anybody have any suggestions on how to "repair" or "recover" the underbelly of my camper?

 

[Boat Bum]

Plenty of repair tapes available expressly for this, see here.

 

[Coloradokev]

Wow, those products are what I need! Thank YOU!
I'm needing to cover the entire underbelly of my 18 Ft camper. Now I'm wondering if the repair kit (taped at seams/edges)(Taped to frame??) would stay in place at 70 MPH but I guess it does. Maybe I could add some adhesive stripes (from a caulking tube) as I'm pushing the repair sheet up into place??