https://www.steelerubber.com/camper-rv
Match PROFILE AND DIMENSIONS, about $4/foot in 25, 50, 100 foot rolls? Sometimes available online eBay/ Amazon, sometimes RV suppliers. I bought 25-ft, used about 6-7ft on a vertical. Suggest a screw in ends (if possible), BUT CHECK SPACING ALL AROUND WHEN LEVEL, you want EVEN front/rear gaps, where too tight peels it off. Most have some adjustment, but can be a heavy challenge and some engineering to adjust. LUCK