Chimney Care Company's Blog
Chimney caps: Is your chimney protected?
The top of your chimney opens to the outside, meaning it is fully exposed to all of the elements, debris and wandering animals. That is, unless your chimney is topped with a secure chimney cap in good repair.
About your chimney cap
Your chimney cap sits at the very top of your chimney. Usually attached by a metal cage, the chimney cap covers the opening of your chimney’s flue. Chimney caps come in all shapes and sizes and can be made from a variety of materials. Chimney caps serve a variety of functions.
Because they serve as a rooftop to your chimney, they prevent water from pouring down the walls of your flue and damaging your chimney liner, firebox, damper and chimney doors. Chimney caps play such a vital role in protecting your chimney system from water, the Chimney Safety Institute of America has dubbed them the cheapest and most effective way to protect your chimney from water damage.
Chimney caps also keep animals and debris out of your chimney. Without a chimney cap, leaves and branches can make their way into your flue, as can nesting animals or wayward birds. Blocked chimneys can cause many problems. They can force smoke and carbon monoxide back into your home. They can pose a fire risk. Animals that become trapped can cause an unpleasant smell and can require professional removal.
Chimney caps also can withstand high winds and help prevent strong bursts of wind from forcing their way down your chimney, chilling your home and potentially filling it with smoke. A chimney cap that is surrounded by fine wire mesh can help keep your rooftop safe. Without the mesh, burning embers can jump out of your flue and pose a fire hazard to your rooftop.
Determining whether you need a new chimney cap
Most chimney caps are made from copper or stainless steel. They are durable, and many come with lifetime warranties. Chimney caps can become disrupted or dislodged. Your chimney sweep should examine your chimney cap during your annual cleaning and inspection to make sure your chimney cap is free from any damage and firmly in place. You also may determine that you need a new chimney cap if you’ve noticed rust running down the sides of your chimney, or water or debris making its way into your flue.
If you need a new chimney cap, The Chimney Care Company can help. Our chimney experts can inspect your current chimney cap and chimney and provide you with your chimney cap options. We offer chimney caps in different metals, different sizes and different styles. You can choose a chimney cap that blends seamlessly into your chimney or one that adds style to your roofline. If you need a new chimney cap, or feel your chimney cap needs to be inspected, call us today!
Protect your chimney with waterproofing
Your chimney is out there to face all of the elements. Weather, particularly moisture, can be incredibly damaging to your chimney. In fact, the Chimney Safety Institute of America has dubbed water a chimney’s worst enemy and encourages homeowners to do all they can to protect their chimneys from moisture. At The Chimney Care Co., we recommend our customers consider waterproofing to help protect their chimneys — and their homes — from water damage.
Water’s damaging effects on your chimney
The biggest danger from water comes as a result of the freeze-thaw cycle. When water hits the sides of your chimney, weather from rain, snow or ice, your chimney’s porous masonry soaks up some of that water. When temperatures drop, the water inside the chimney’s walls freezes and expands, causing cracking and crumbling. Over time, the constant freezing and thawing of the water inside your chimney’s masonry can break down your chimney’s structure and compromise your chimney’s ability to contain flames, heat and smoke.
Moisture can damage your chimney and fireplace in other ways, as well. Water that finds its way into your flue can mix with creosote and cause an unpleasant smell to fill your home. The water also can lead to rusted dampers, fireplace doors and dampers, or cracked flue tiles. If the water seeps into your home’s structure, it can cause damage to your home, including stained ceilings, sagging wallboard and rotting joists.
How waterproofing can protect your chimney
One of the most effective ways to protect your chimney is with a waterproofing treatment. A waterproofing application prevents your chimney’s masonry from soaking in nearly 100 percent of water. At the same time, it allows your chimney’s masonry to “breathe,” so any moisture doesn’t become trapped in the chimney’s walls, and the smoke and gases from your fireplace can still exit your chimney normally. Most chimney waterproofing applications come with a five to 10 year guarantee for protecting your chimney.
Other ways to protect your chimney
There are other steps you should be taking to keep water from damaging your chimney and fireplace. As part of your annual chimney sweeping and inspection, you should ask your chimney sweep about the state of three important chimney components.
A secure chimney cap prevents water from flowing down your chimney’s flue. A properly formed chimney crown that is free from cracks or damage helps protect the outer walls of your chimney from precipitation and directs water away from your chimney’s opening. You also will want to check your chimney’s flashing — the metal barrier around your chimney’s base — to make sure it isn’t corroded or cracked.
If you’re concerned about water’s effects on your chimney, or if you’ve noticed early signs of water damage, call the chimney experts at The Chimney Care Co. We can talk to you about waterproofing and other ways to protect your chimney from water damage. We also can inspect your chimney for signs of water damage and help you detect and repair any problems.