Lowes sells an item I think referred to as 'florida glass' it is actually a clear vinyl with monitor materials imbedded, and it is actually water-proof. I mounted a couple of panels in a location where we ended up constantly acquiring rain and irrigation h2o, and this solved the trouble. https://solarcompaniesnearme76421.dm-blog.com/34716642/the-best-side-of-solar-panels