Replacing coroplast on entire camper underbelly

I removed mine for warmer floors. Insulated with attic batted insulation held in place with rigid foam insulation. Reattached sheets with stainless steel screws, and velcro. Sealed all holes around pipes with flexible vinyl material, and Gorilla tape. Only had one mouse this winter. She chewed threw the vinyl next to the tires. Noticed a big difference in temp, and fewer winter visitors. I think I could have just used the velcro. But I'm paranoid, and went with both.