Abstract: A roof snow guard with a gasket on the bottom is described. In some embodiments, the snowguard includes a base with a vertical faceplate extending upward from the base and one or more side braces extending between the base and vertical faceplate. The base may include a fastener aperture(s) along with an external rib located on the base top. The gasket may lock to the base bottom via fastener(s) extending through the base and gasket, as well as one or more protrusions located on the base bottom that engage the gasket. The base bottom may further include conical protrusion(s) extending below the gasket that engage the roof.