Rodent proofing is the process of denying rodents entry into a building or home by improving the building integrity. Rodent exclusion is the best long term and cost effective method of rodent control. You want to eliminate dead spaces, cracks, crevices, and other openings so that pests cannot hide in, enter, or leave a specific building, room or piece of equipment.
Mouse and rat exclusion begins with Copper mesh. A Copper mesh product should be used when trying to prevent entry into a hole and opening. Rodents do not have the ability to chew or gnaw through the copper mesh fibers.
For successful rodent exclusion openings around pipes and doors should be corrected. Wooden doors are often gnawed trhough by rats. Ventilation grill should be covered with 18-gauge mesh. Sidewalk gratings should be also closed.
Removal of haborage areas around structure and removing of tree branches that hang over roof line will also help in your rat exclusion.