is a piece(s) of metal, installed on top of chimney.
forms a cover for your chimney opening.
helps keep nature, animals, etc... out of your system.
fits right over the chimney liner.
has multiple valuable functions that can save you thousands of dollars from costly chimney repairs and damage to your home.
keeps moisture out.
provides spark protection.
If you are uncertain whether you need a chimney cap, consider this; that piece of metal can save you thousands of dollars from unnecessary chimney and home repairs.