Purpose and Function of a Chimney Cap
Imagine framing out your roof and stopping there. Now, once you know the purpose and function of a chimney cap, you realize it is as essential as shingles on a roof! Chimney toppers protect homes from safety hazards if you buy the correct model. They are available in various materials, as well. Find out more below. Then, if you live in or around Richmond, VA, call the certified chimney technicians at Chimney Saver Solutions for professional chimney cap installation and repair.
What is the Purpose and Function of a Chimney Cap?
Chimney caps can have several purposes and functions. A basic chimney cap performs the essential function of preventing water from entering the chimney flue. Moisture is a chimney’s number one enemy because of the spongelike quality of masonry. Every brick infiltrated by water is on track to go flat. That’s because, in the freezing and thawing cycles of winter, the water expands and contracts. This movement destroys the masonry. A partial or complete chimney masonry rebuild becomes necessary.
A chimney cap can also serve as a top-sealing damper. Homeowners often choose to switch from a throat damper to a top-sealing chimney cap. This change helps to improve energy efficiency by stopping the exchange of inside and outdoor air inside the flue liner. Throat dampers are known to warp and rust, which allows rather than prevents airflow. After the installation of a top-sealing damper and chimney cap, homeowners have reported significantly lower heating and air-conditioning costs.
What are the Functions of a Chimney Cap with Mesh?
Because water is not the only thing that can end up inside a chimney, choosing a chimney cap with mesh is important. Without mesh, debris can also get into the chimney flue. Whether there is a buildup of leaves or tree branches, the result is a chimney obstruction. Chimney blockage is the cause of destructive home fires every year. Birds and other animals are also prone to getting into chimneys and causing all kinds of complications. Unless, that is, the chimney cap is complete with mesh.
The mesh doesn’t just prevent potentially expensive issues by stopping things from going into the flue, however. The mesh often stops floating embers from escaping into the outdoors. Embers have often caused roof fires and have set other nearby debris ablaze.
What Different Metals Are Chimney Caps Made Of?
There are four types of metal used to make chimney caps. They are listed below from the most expensive to the least expensive. However, cost should not be the determining factor unless a short-term solution satisfies your situation.
Copper. The most expensive type of chimney cap can save you money in the long run, and it is made of copper. Copper is the most durable type of chimney cap, promising the best potential for a long lifespan. This remarkably corrosion-resistant metal provides the greatest curb appeal, as well. Copper chimney caps add architectural elegance. The natural patina that develops over time has a lot to do with the aesthetics, gradually turning the shiny copper into a beautiful blue-green finish.
Stainless Steel. Stainless steel is another strong metal that is highly resistant to corrosion. When you choose a stainless-steel cap, it will also last much longer while requiring less maintenance than those below.
Aluminum. Aluminum is a lightweight metal with far less durability than the above due to its softness. However, it is a much more cost-effective option.
Galvanized Steel. The most affordable type of chimney cap is made with galvanized steel. This is a short-lived material because the zinc coating can be worn away within a few years. Once the metal underneath is exposed, it will rust. A new chimney topper will be required in practically no time after the installation of a galvanized steel chimney cap.
Contact the Experts for Chimney Cap Installation or Repair
The reliable chimney pros at Chimney Saver Solutions have the experience and training to handle all your fireplace and chimney needs. We are happy to explain things such as the purpose and function of a chimney cap. Our comprehensive services include chimney cap installation, chimney inspections, chimney crown repair, chimney flashing repair, masonry rebuilds, chimney cleaning, and new fireplace installation.
Chimneys have more working parts than you might think. Like chimney caps, they are all prone to suffer damage. Call us or fill out our online form today for the best in chimney services that will ultimately reduce overall home maintenance costs.
