Roof rats are agile climbers and often prefer to nest in elevated locations. Here are some common signs that may indicate a roof rat infestation in your property:

• Noises in the Attic or Walls: Roof rats are most active at night. If you hear scratching or scurrying sounds in your attic, walls, or ceiling, it may indicate roof rat activity.
• Droppings: Roof rat droppings are spindle-shaped and smaller than Norway rat droppings. Finding droppings in attics, along roof lines, or near food sources is a sign of an infestation.
• Gnaw Marks: Rats need to constantly gnaw to keep their teeth sharp. Gnaw marks on wires, insulation, or wooden structures are a clear sign of rat activity.
• Grease Marks and Footprints: Roof rats follow the same pathways repeatedly, leaving behind dark smudge marks from their oily fur. You may also notice footprints in dusty areas, especially in attics or crawl spaces.
• Nests in High Areas: Roof rats build nests using shredded materials like insulation, paper, and fabric. Nests are often found in attics, wall voids, or other elevated areas of your home.