I don't know of any easy quick fix. Fiberglass repair is a painstaking process. At least you're parked, so it shouldn't get worse. If you're not concerned about aesthetics I'm sure there's a sealant you can pit on it. At the very least seal it to keep the moisture out. They make fiberglass tape water activated or you could brush on some flex seal.
https://flexsealproducts.com/collect...QaAo71EALw_wcB
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Tony & Donna
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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