
A chimney without a cap is a roof with a hole in it. Without a cap, the interior of your chimney is subject to deterioration from rain, snow, and other elements. Water running down the inside of an uncovered flue damages the walls of the flue, other areas of your chimney, and potentially the ceiling and walls of your home.
Additionally, when water penetrates even the smallest cracks and mortar joints, with a change in temperature it freezes and expands, increasing the cracks. In addition to helping prevent weather damage, a chimney cap also prevents birds, rodents, and other wildlife from entering your chimney.
Additionally, when water penetrates even the smallest cracks and mortar joints, with a change in temperature it freezes and expands, increasing the cracks. In addition to helping prevent weather damage, a chimney cap also prevents birds, rodents, and other wildlife from entering your chimney.