I have not done a Newmar Vinyl but have on Newmar Fabric. BUT, Monaco used Vinyl panels as well as other OEM's. THOSE ceiling panels come in 4 by 8 foot pads. They have the vinyl glued to the wood backer. You replace the complete 4 by 8 foot cutting out for cabinets and such. It is then glued in to the overhead Styrofoam and roof studs. At one time Monaco was supplying rolled foam/Vinyl and you removed the existing vinyl/foam. Scraped the remnants off the wood ceiling backer and then glued the new to the old. Hopefully, Newmar supplies the vinyl only. IF the wood ceiling backer is intact, then remove the vinyl/foam and scrape and glue new on. Newmar used to pay 4.0 hours PER 4 by 8 foot section for the Fabric replacement under warranty. Same with Monaco for Vinyl only replacement. This should give you a time frame on how long the repair should take. Doug