How Do Roof Rats Get Into Wall Voids?

Roof rats are not as widespread as Norway rats and, therefore, not as well-known. The peculiar pests are prevalent in Florida because they prefer warm climates and often feed on and live in fruit trees. They’re also extremely agile climbers and are generally found nesting high off the ground.

People regularly spot the pests building nests on roofs and in ivy clinging to the sides of buildings. The animals also won’t hesitate to move indoors if the opportunity arises. 

Walls are a favorite nesting spot for roof rats. But how in the world do they get in? Sometimes they can slip in cracks, but they can also create their own entry points as well. You’d be surprised by the strength of their jaws and teeth.

Because of their constant gnawing and powerful bites, rats can chew through almost anything: wood, drywall, brick, concrete, aluminum, sheetrock, and more. When motivated, a rat can almost certainly make its way into your home using its powerful jaws.

As rodents, rats have teeth which are constantly growing. In fact, rat teeth grow about 1.4 mm per day. This means that they must constantly gnaw on materials to grind their teeth down, to prevent them from growing into their skulls. This makes almost any hard material in your house fair game as a rat-chewing object.

Not only are rats incessant gnawers and biters, they are extremely powerful for their small size. Though exact figures are hard to pin down, rats have an incredibly high bite pressure considering their size. Most people measure that rat bites exert more force per square inch than alligators and sharks.

Problems Caused by Roof Rats in Walls

Roof rats, like most rodents, are dirty and carry diseases. In fact, the pests are notorious for spreading the plague. Additionally, roof rats in the walls will make scratching and squeaking noises as they scuttle around. Since they’re primarily active at night, this behavior often disturbs sleeping residents.

Furthermore, roof rats searching for food and water may travel through wall voids into kitchens. Between their greasy fur and frequent urination, the pests contaminate large amounts of stored goods in no time at all.

Getting Rid of Roof Rats

One of the best ways to avoid problems with roof rats in walls is to patch up roof shingles. Replacing damaged vents and capping chimneys will also limit their ability to enter homes. When roof rats infest the walls or house, homeowners should contact the pest professionals at Critter Control for roof rat removal.

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Mary
18 September 2026
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From the very moment we reached out Critter Control requesting their help to investigate and find a solution for raccoon activities in our home, we received immediate response. Mr. Scott and his staff are very knowledgeable and professional when dealing with critters activities and how to control them. We feel better now, knowing that we are in good hands to solve this problem. Thank you Critter Control!
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Tammy Renee Walker
18 September 2026
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Scott helped me so much and even took time out to survey any trouble areas I had. He is a true asset to your company.
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Donnis Palaoro
18 September 2026
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Kole goes above and beyond what is expected of the job. It has always been a great experience when he is the one servicing the property.
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Rich Anthony
18 September 2026
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Such a great company to work with for removing unwanted critters! Such a high quality experience. Josh is a great technician and communicator.
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F. Gordon
17 September 2026
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Critter Control is made up of a tightly knit group of individuals that work very well with each other. It's no surprise that each individual at Critter Control works extremely well with the home owner. The concise and timely communication, the cordiality on the phone and in person, the effort to meet and exceed expectations is prevalent in each interaction. This is my second utilization of their services, the first being back in the late 90s for mice that made their way into our apartment. This time round it was for moles which I had a problem with last year. It turned out it was a gopher that had gained entry to the old mole's tunnels. An array of traps were set that ultimately led the critter directly into the clutches of Critter Control! I am VERY HAPPY with the entire experience, from first call to capture! A five star experience! Steve, you guys are top notch! Rob and his father Chris handled business at my location during some of the hottest days of August. Rob partnered with me in an effort to increase the chances of capture. He directed me to water the trap area so the dry dirt didn't fall in when checking/setting traps. Upon the next visit, Chris exhumed the critter and communicated his findings promptly and professionally...Confirmation that knowledge within Critter Control is concise and specific to the capture of each critter.
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Maureen Curtis
17 September 2026
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They blocked all places for raccoons and other rodents from making a bed under our deck. Excellent work was performed in a very timely manner. I highly recommend them.
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chuck topping
17 September 2026
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Jacob Johnson was excellent. He was professional, courteous and explained everything he was doing. I would definitely hire him and the company again.
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17 September 2026
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Very responsive and knowledgeable. They took care of my Animal Control problem with minimal stress to me
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Haley Zettlemoyer
17 September 2026
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Highly recommend Critter control of Carlisle! Nate and Shaun were great! They were very professional and knowledgeable! If you have some kind of critters you need to get rid of give em a call!
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Heather
17 September 2026
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Very personable
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