A mouse needs a hole the size of a dime. Then it climbs your wall like a ladder.
Mice and rats are strong climbers — brick, stucco, pipes, and wires are all ladders to the roofline, where they slip through vents and eaves into attics. Once inside, they chew wiring, contaminate insulation, and nest.
Rats are just as vulnerable to the film as insects: on a vertical surface they can't climb, they're locked out.
Rodents can't scale the slick film to reach rooflines and vents. The Nano Film band cuts off the climbing routes rats and mice use — real customers report mouse activity stopping once the barrier went up.
Rodents vs. Nano Film — see what happens when they try to climb it.