7 Most Common Reasons For Chimney Repair Service
Chimneys play a crucial role in our homes, providing ventilation and safely channeling smoke and toxic gases out of the living spaces. However, just like any other part of a house, chimneys are not immune to problems. From minor issues that can be easily addressed to more significant concerns that require professional attention, chimney problems can pose risks to both the structural integrity of the chimney and the safety of its occupants. Since we’ve seen just about every problem that can arise from owning a chimney, we’ll touch on some of the most common chimney problems encountered by homeowners, shedding light on their causes, signs, and the necessary steps to address them effectively. By understanding these common issues, you'll be better equipped to ensure the optimal functioning and safety of your chimney.
#1 Chimney Leaks
Chimney leaks can occur due to various factors, and understanding their causes is crucial in addressing the issue effectively. One common reason for chimney leaks is damaged or deteriorated flashing. Flashing is a protective barrier made of metal that is installed around the base of the chimney where it meets the roof. Over time,
flashing can become loose, corroded, or damaged, allowing water to seep into the gaps between the flashing and chimney or roof. This can lead to water intrusion and subsequent leaks into the home. Additionally, improper installation or inadequate sealing of the flashing during initial construction or roof repairs can also contribute to chimney leaks.
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Another common cause of chimney leaks is the deterioration of the chimney's masonry. The bricks and mortar that make up the chimney can deteriorate over time due to exposure to harsh weather conditions, freeze-thaw cycles, and moisture penetration. Cracks, gaps, or spalling in the masonry can allow water to enter the chimney structure and eventually find its way into the home. Furthermore, the chimney crown, which is the cement or concrete top covering the chimney, can develop cracks or deterioration. This allows water to penetrate the chimney system and cause leaks. Regular maintenance and timely repairs to address masonry issues are essential in preventing chimney leaks and maintaining the integrity of the chimney structure.
We’re experts in addressing chimney leaks. If you’re seeing moisture coming into your home, give us a call and we’d be happy to provide a free consultation.
#2 Cracked or deteriorated masonry
Masonry cracks and deteriorates over time due to a combination of factors, primarily related to exposure to weather elements. One key factor is the freeze-thaw cycle. When water seeps into the masonry, it can penetrate the porous bricks or mortar joints. During freezing temperatures, the water expands as it turns into ice, exerting pressure on the masonry. This repeated expansion and contraction weaken the structural integrity of the bricks and mortar, leading to cracks and deterioration.
Another factor contributing to masonry cracks and deterioration is water penetration.
Over time, this water can cause the steel reinforcing bars (rebar) within the masonry to rust and expand, further exacerbating the damage. Additionally, water can carry dissolved salts and minerals that, when left behind as the water evaporates, can lead to
efflorescence—a white, powdery substance that forms on the surface of the masonry. This can contribute to the breakdown of the masonry materials and accelerate the deterioration process.
When you add other external factors such as wind, rain, snow, and temperature fluctuations you’ll notice that your
chimney will deteriorate quicker and more frequently. Constant exposure to harsh weather conditions gradually wears down the protective layers of your brick chimney, making it more susceptible to damage. Trust our years of experience when it comes to chimney rebuilds and repair.
#3 Chimney Rebuild
Chimneys may need to be rebuilt for various reasons, primarily due to significant structural damage or safety concerns. Over time, exposure to weather elements, temperature fluctuations, and moisture intrusion can cause extensive deterioration to the chimney's masonry. Cracks, spalling, or crumbling mortar joints can compromise the overall stability of the chimney, posing a risk of collapse. If you’re experiencing severe deterioration,
a complete chimney rebuild becomes necessary to ensure the safety of the occupants and to prevent further damage to the surrounding structure.
#4 Chimney Obstruction
Chimneys can become obstructed for various reasons, and addressing these obstructions is crucial for maintaining the safe operation of the chimney. One of the most common reasons for chimney obstruction is the presence of nesting animals or debris. Birds, squirrels, raccoons, or other critters may find an unprotected chimney an attractive spot for nesting.
Their nests or accumulated debris can block the flue, preventing the efficient passage of smoke and gases. Installing a chimney cap with a mesh screen can help prevent animal entry and keep debris out, reducing the risk of obstructions. Regular inspections and cleanings can help identify and remove any obstructions, allowing the chimney to function properly and safely.
#5 Damaged Chimney Liner
Chimney liners can get damaged for a variety of reasons, but the one we see happening time and time again is due to the corrosive nature of the byproducts produced during combustion. When fuel, such as wood or gas, is burned in the fireplace or stove, it releases gases, including moisture, sulfur dioxide, and other acidic substances. These acidic byproducts can attack the interior walls of the chimney, causing the liner to deteriorate over time. The liner may become cracked, pitted, or corroded, compromising its ability to effectively contain and vent the combustion gases. It’s common for chimney liners to experience degradation over time, especially if you use your fireplace frequently.
#6 Chimney crown issues
A chimney crowns, or a cap, plays a vital role in protecting the chimney from water intrusion as well as any external elements, but just like the exterior of a chimney, crowns can deteriorate over time causing it to need repairs.
If you have a cracked or
damaged chimney crown, it will allow water to seep into the masonry, leading to moisture-related issues such as spalling, efflorescence, or freeze-thaw damage. Repairing chimney crowns is essential to prevent further water damage, preserve the integrity of the chimney structure, and maintain a watertight barrier that prevents moisture from entering the chimney system.
#7 Creosote buildup
One common cause of chimney obstructions is the buildup of creosote. Creosote is a sticky and highly flammable substance that accumulates in the chimney flue due to incomplete combustion. Over time, it can form thick layers or deposits that restrict the airflow and increase the risk of chimney fires. Regular chimney cleanings are necessary to remove creosote buildup and ensure proper ventilation.
Chimneys don’t have to be the source of a headache. They are an amazing addition to any home, but just like most conveniences in any home, they need their maintenance as well. Give us a call for a free consultation if you’re experiencing any of these common chimney issues.
We’ll schedule a free visit, assess the condition of your chimney, and report back with our findings. We service the entire Chicagoland metro area and we look forward to your call!
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