Critters such as raccoons find acceptable shelter in naturally occurring dens and cavities in the wild. The natural dens of rock formations on the ground or the hollow of a tree hold similar characteristic to a common part of most buildings- a chimney.
Uncapped chimneys can offer critters a convenient den. The insides of a chimney like the hollow of a tree offer sheltered protection from the elements. Raccoons can climb trees and the sides of brick with ease. When chimneys are left uncapped raccoons may target them for shelter. Capping a chimney with a properly ventilated cap offers a strong deterrent from animals selecting your home to live in. For more information contact Critter Evictors.