Abstract: Roofing panels for concealing a biocidal source are described. In embodiments, the roofing panels include a body having as top side, a bottom side parallel with the top side, a front edge, a rear edge, and a left edge. The roofing panels may further include a first sidewall, a second sidewall, and one or more standoffs. The first and second sidewalls may have a tapered sidewall height that provides a gap between the body of the roofing panel and underlying material. The roofing panel may be installed over a biocidal source on a roof, concealing the biocidal source from view while still allowing liquid (e.g., water) to flow over the biocidal source.