Roof Rat
Rattus rattus
Slender black rats that climb expertly and nest in attics, ceilings, and roof voids — major carriers of disease and structural damage.
Know the Roof Rat
Size
33–46 cm (13–18 in) including tail
Appearance
Grayish to black fur with a lighter underside. Large dark eyes and ears, pointed snout, and a long slender tail nearly matching body length.
Feeding
Grains, fruits, vegetables, meats, and sweets. Targets pantries, warehouses, and kitchens. Contaminates 10× what they eat.
Behavior
Excellent climbers — nest high in attics, ceilings, and roof voids. Primarily nocturnal; foraging at night.
Habitat
High sheltered areas — attics, ceilings, behind walls, and rafters. Use insulation, cardboard, and fabric for nests.
Signs of Infestation
- Droppings (pointed ends, ~1 cm) in attics and on rafters
- Gnaw marks on wires, packaging, and beams
- Scratching or running noises from ceilings at night
- Greasy rub marks along vertical paths
Health & Property Risks
Transmit leptospirosis, salmonella, hantavirus, and host fleas/ticks. Gnaw electrical wiring, creating fire hazards.
A.I.R. Framework for Roof Rat
Every roof rat engagement follows our proven three-step methodology — tailored precisely to this pest.
Assess
Inspect roofs, attics, ceiling voids, and outdoor climbing routes (vines, wires, branches).
Implement
Deploy snap traps, professional bait stations, and seal openings ≥1.5 cm with steel wool/hardware cloth.
Review
Trim climbing routes, monitor monthly, and maintain rooftop and attic exclusions.
Roof Rat Questions Answered
The most common things people ask us about roof rat — straight from years of fieldwork.
More Rodents
Identify and learn about pests that share habits, habitats, or treatment approaches.
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The heavy ground-dwelling burrower
Large brown rats that burrow at ground level near foundations, sewers, and waste areas — aggressive scavengers and vectors of disease.
RodentHouse Mouse
The clever small rodent that fits anywhere
Small agile rodents that squeeze through tiny gaps, breed rapidly, and contaminate food while causing electrical and structural damage.
RodentMongoose
Agile predator that scavenges urban edges
Slender carnivorous mammals that hunt rodents and snakes — beneficial predators that occasionally become urban nuisances near waste and food storage.
Ready to Protect Your Space?
Choose Urban Pest Solution for comprehensive, technology-driven pest control. Our A.I.R approach makes us the ideal partner for a pest-free environment.