Like the Norway rat, the roof rat is an Old World species native to Asia, specifically the forests of Southeast Asia. It also spread westward with human migration and actually reached Europe and North America before the Norway rat. However, once the more aggressive Norway rat arrived in the United States, roof rat populations began to decline. Today, while Norway rats are found in every U.S. state, roof rats are typically limited to coastal cities and warmer regions along waterways. They rarely travel more than 100 miles inland on their own, but they can be transported inland and set up local infestations.

True to their name, roof rats are arboreal and favor higher structural areas, such as attics, soffits, drop ceilings and upper wall voids. They do very well in neighborhoods with mature landscaping, especially those with fruit or nut trees, and easily travel along fences, through trees, on utility lines and rooftops. Roof rats often find natural food sources and don't rely on people for food as much as Norway rats.

Because of their climbing habits, control methods must adapt and be placed higher than usual for Norway rats. Still, don't ignore the ground. Roof rats may forage below or even burrow in dense vegetation. Look for signs like gnawing, droppings or rub marks to guide placement.

Snap traps such as the T-Rex iQ Sensing Rat Snap Trap work well when secured to utility conduits roof rats use as travel routes. Since they mostly get caught trying to bypass a trap, setting two or more side-by-side increases the odds of a catch. This smart trap's built-in alert system notifies technicians when it's triggered, reducing guesswork and saving time. Bait traps with Airzonix Rodent Monitors—easy-to-use, non-food-based caps that last up to 90 days and are a smart choice for sensitive accounts.

Glue trays, like the Catchmaster 48WRG Cold Temperature Glue Traps, are ideal for catching younger rats whose shorter whiskers may not detect glue in time. For best results, place glue trays in the middle of known runways, not in corners where rats tend to slow down and notice more of their surroundings. These glue traps are effective in temperatures as low as 0°F and don't harden in walk-in coolers or unheated basements and garages in winter.

Effective roof rat management depends on understanding their habitat preferences and unique movement patterns. By targeting management strategies to elevated areas and using the right combination of traps, infestations can be identified and resolved more efficiently. With the right approach, even the most elusive roof rat can be managed.