Chimney stacks were a popular fixture in older houses, rising above the house’s roofline. They are not so popular nowadays, but they do survive in a few older houses.
Benefits - A chimney stack, with its open flue, helps cut down on condensation inside the home during the winter months as air circulation is improved. During summer, the stack also helps keep the home cool as it lets out warm air and allows fresh air into the house.
Bricks in Chimney Stacks - Older chimney stacks were made of stone, but brick corners became more popular later. Eventually, the entire chimney stack was made of brick of various colors.
Repairing Chimney Stacks - Chimney stacks that are still in use need to be maintained by repointing them, at least. When repairing or rebuilding chimney stacks, homeowners should use clay bricks of a color that matches the stack.