From publisher blurb:
Rooftops is a set of printable textures compatible with any RPG/Dungeon-Crawl game.
Contains: 8 6x10 textures depicting rooftops. These can be printed and trimmed to fit over our building floor plans, or cropped for VTT use and used as overlays.
Uses: Placing the rooftop textures over the floorplans can hide the contents until the players enter a building, or allows the players to stand on the roof, leading to chases, ambushes and a whole new level to your encounters.