The Importance of Chimney Repairs
The chimney plays two primary roles: it removes smoke and flue gases from the furnace, and it creates “draft” that enhances the fire. The draft is the suction created as hot air rises, creating a vacuum in the firebox. This vacuum works to pull fresh air into the firebox, allowing wood to burn properly. If there is insufficient draft, no furnace will work well.
Chimney Repairs
When you can see small cracks and loose bricks on your chimney, it’s important to have them fixed immediately; repairs of minor chimney damage can prevent further damage and keep repair costs down. If repairs are delayed, they could become extensive and costly. Some common masonry repair services are:
- Chimney Repointing: Aging or water damage can cause mortar to crack or crumble between the bricks that comprise your chimney. Repointing replaces the damaged mortar. Repointing will make your chimney structurally sound, as long as one other factor works; if chimneys of the same age as yours were rebuilt, then yours should be rebuilt too.
- Repairing or Replacing Chimney Flashing: The flashing, which seals the joint between the roof and the chimney, is best known for leaks. This is where water can get into your home, causing water stains on ceilings or walls when the flashing is compromised. Repairing or replacing roofing flashing is an important step in stopping an ongoing source of water damage.
- Dealing with Masonry Condition of Chimney Crown: Moisture can affect the chimney’s crown, causing cracks and deterioration. Be sure to address the cracks. Repairs to the crown are pivotal to structural stability.
- Installing or Replacing Chimney Cap: A chimney cap prohibits moisture and debris from getting into the chimney from above. Its main purpose is to protect the masonry body from further damage.
After all repairs are done, you can also waterproof the chimney to assist with the prevention of issues as the age of structures can attract moisture.
Keep Your Chimney Healthy
It’s important to keep your chimney functional and in good working order. A masonry chimney, if maintained properly, can last hundreds of years.
With that said, here are some maintenance tips:
• Burn clean, dry wood. Wet or green wood produces more creosote and can lead to chimney fires.
• At times, open the airflow and burn a hot fire. This promotes a reduction in creosote and enhances safety.
• Schedule annual inspections and chimney cleanings. A certified masonry contractor can better analyze the chimney for damage when it is clear, which is typically easier in the summer, as last winter’s damage is still present.
• Practicing good ventilation and drainage. Avoid a buildup of moisture and subsequent damage below your chimney at the base. Examine and secure the chimney cap: ensure that it is operating properly to prevent water intrusion and debris from accumulating.
Chimney Flashing
Flashing, which seals the joint at the junction between the chimney and the roof, is a common point for leaks to occur. Water intrusion around long-term faulty flashing may result in stains on ceilings and walls. Normally, flashing consists of metal sections: step flashing, back pan, and apron flashing on the roof, and counter flashing that secures the chimney.
Flashing Maintenance
The base of the chimney, where the flashing meets the roof, is frequently composed of lead, which may leave the seam over time. If lead flashing fails and a rain event occurs, rain may seep into the roof, causing damage in undetected areas, such as the attic. Flashing is frequently repaired or replaced in conjunction with chimney repointing or chimney rebuilding.
Chimney Leaks
Leaks around the chimney flashing are a primary entry for water damage to occur. A properly maintained masonry chimney can last for generations or hundreds of years if properly maintained.
Consider the following important maintenance practices:
• Do not restrict airflow: occasionally burn a hot fire in the chimney with air supply open; this lessens the build-up of creosote and results in safer operation than a cooler fire.
• Have your chimney inspected and cleaned annually. Certified masonry contractors may be able to identify damage easier especially if completed in the summer months.
• Check the crown of the chimney regularly and make repairs as needed.
• Ensure that there is proper drainage at the base of the chimney to deter pooling and structure damage.
• Check that your chimney cap is installed and secure. Without a cap, water can infiltrate and create damage to the chimney crown and masonry.
Conclusion
Lastly, when conducting proper maintenance of your chimney, timely repairs, and diligent inspections safeguard your chimney’s safety, efficiency, and longevity. By recognizing and addressing an issue as it occurs, along with preventative measures for damage, you can prolong the life and functionality of your chimney and perhaps save you money on future repairs.