Roof Rat Burrows

The last way to kill a rat is to use the protection of the burrow against it.

Roof rat burrows.

It is therefore advisable to get rid of roof rats as soon as you become aware of their presence. The norway rat digs tunnels to nest because it prefers to be on ground level. As the dry ice melts it releases large volumes of carbon dioxide which fills the burrow and suffocates the rats. Suffocation agents for rats.

Major cities like chicago have started utilizing this approach by filling the entrance of the burrow with dry ice. As they can gnaw at and chew through metal pipes and plastic they can damage the structure of your house which might take a lot of effort and financial investment to fix. Check along walls and grass for runways. The entrance will be roughly 2 4 inches in diameter and smooth and compacted from the rodents going in and out of the burrow.

Indoors roof rats like to build nests in the upper areas of the home where it s kept warm by rising heat. If residents find a rat burrow near the home it most likely belongs to a norway rat not a roof rat. Rats create underground pathways or burrows from their nest to food sources and to escape predators. Outdoors you can find roof rats nesting in trees shrubs wood piles and dense vegetation.

You ll also notice fresh dirt just out of the entrance in a fan shape created when the rodents excavate dirt from the hole. Rat burrows usually contain a main entrance and 1 or 2 exit holes away from the main entrance. Typical rat burrow the first distinct sign of a rat hole is the size of the entrance. These burrows are often located under bushes or other types of dense vegetation.