Trust Northeastern Masonry & Chimney for All Your Flashing Repair & Installation Needs
Your chimney protects your home from the elements while safely venting smoke and combustion byproducts. Still, its constant exposure to harsh weather can lead to issues like water intrusion, one of the most common causes of chimney damage. When you’re trying to keep water out of anything – including a chimney – seams are potential weak points. The seams between your chimney and the roof are of particular concern because water can pool in that area. Fortunately, strong and properly installed flashing offers your best defense against those types of leaks.
Portions of chimney flashing can be torn or damaged, or the high-performing caulk that’s used to seal some edges can pull off, allowing water to enter. Poorly installed flashing, or flashing using rust and corrosion-prone materials, can fail relatively quickly. Northeastern Masonry & Chimney technicians are extensively trained to provide the custom work required for proper flashing repair and installation and can advise you on the best material choices for your home. To check the current condition of your flashing, call us today at 518-767-9315 or click here to schedule a chimney inspection.
What Is Chimney Flashing?
Proper flashing is constructed in layers to provide maximum protection against water. A base layer of step flashing is installed first as L-shaped metal pieces are laid in with the roof shingles against the chimney. We place counter flashing on top of the step flashing. This layer gets integrated with and installed into the mortar joints. The remaining seams are then reinforced with caulk for even more protection. This multi-layered, caulked construction creates a watertight seal, effectively preventing water infiltration and protecting your chimney and home for years.
What Materials Are Used for Chimney Flashing?
The materials used in flashing can differ, but the most commonly used are galvanized metal, stainless steel, and copper. Galvanized metal will be the least expensive option, but it’s also the least durable and often succumbs to rust and corrosion in relatively short order making the installation of new flashing necessary much quicker. Stainless steel provides much longer-lasting protection. Copper is the most expensive choice, but tends to appeal to people who want a particular look for their home. Copper flashing – aside from being highly durable – provides a bright pop when it’s new, and takes an elegant green finish as it weathers.
How Can I Tell if My Chimney Flashing Needs Repair or Replacement?
Detecting issues with chimney flashing early can save you from more extensive repairs down the road. Here are some signs to look for that could indicate that your flashing may need attention:
- Water leaks. Moisture stains or water damage around your chimney or ceiling are the most obvious signs of compromised flashing.
- Rust or corrosion. Metal flashing that shows signs of rusting or warping is no longer providing adequate protection.
- Loose or missing flashing. Shifting, detachment, or missing pieces of flashing can leave your chimney vulnerable to water infiltration.
- Cracks in the sealant. The sealant that binds flashing to your chimney and roof can degrade after some time, leaving gaps where water can enter.
- Visible gaps or separation. If you can see sunlight between the chimney and the flashing, repairs or replacement are necessary.
Regular inspections are the best way to catch flashing issues before they escalate into something much more complicated and harder to fix. A certified chimney professional can assess the condition of your flashing and recommend the right path forward.
What Are the Most Common Problems With Chimney Flashing?
Some flashing issues are more prevalent than others due to wear and tear or poor installation practices. Common problems include:
- Improper installation. Flashing installed incorrectly may fail to create that needed watertight seal, leaving gaps for water to penetrate.
- Corrosion or rusting. Over time, metal flashing can deteriorate due to rust and corrosion – especially in areas with heavy precipitation or humidity.
- The sealant doesn’t hold up. The adhesive material used to secure flashing can dry out, crack, or lose adhesion, reducing its effectiveness.
- Physical damage. Storms, falling debris, or roof work can dislodge or damage flashing, compromising its integrity.
- Aging materials. Like all parts of your home, flashing materials degrade with age and will eventually need to be replaced.
Can Flashing Issues Cause Structural Damage to the Chimney?
Damaged or missing chimney flashing can lead to significant structural damage if left unattended. Water is one of the most damaging elements for masonry chimneys. It can seep into the bricks and mortar, causing them to break down as time goes on. This process is known as spalling, and it weakens the chimney’s structural integrity and increases the risk of collapse.
Water infiltration can also damage the chimney crown, flue liner, and surrounding roof structure. Moisture trapped inside the chimney can accelerate the freeze-thaw cycle, where water expands as it freezes, creating cracks and further weakening the chimney.
Beyond the chimney itself, water leaks caused by faulty flashing can extend to your home’s interior, leading to stained ceilings, damaged insulation, and mold growth. These issues not only require expensive repairs but can also pose serious health risks. Addressing flashing problems promptly helps preserve your chimney’s structural health and protects your home from broader water-related damage.
How Much Does It Cost To Repair or Replace Chimney Flashing?
The cost of repairing or replacing chimney flashing depends on several factors like the size and condition of your chimney, the materials used, and the complexity of the installation. For instance, replacing flashing on a large chimney or one with an unusual shape may require more materials and labor. On the same note, opting for high-quality materials like copper will generally cost more than basic options like aluminum.
Another consideration is the extent of the damage. Minor repairs – such as resealing cracks or fixing small leaks – are typically less expensive than full flashing replacements or repairs that involve addressing underlying water damage.
While it’s understandable to be concerned about cost, investing in professional chimney flashing services can save you money in the long run. Properly installed or repaired flashing prevents costly damage to your chimney, roof, and home, making it a worthwhile investment. A certified chimney technician from Northeastern Masonry & Chimney can provide an assessment and give you a clearer idea of what to expect based on your specific situation.
Get the Most Comprehensive Chimney Care in Town
Keeping your chimney protected from water damage is crucial to its long-term performance and the overall safety of your home. Whether you need to address flashing issues, invest in professional waterproofing, or schedule your annual inspection, Northeastern Masonry & Chimney is here for you. Our team has the experience and expertise to ensure your chimney remains in peak condition, no matter the year-round challenges it faces. Click here or call us at 518-767-9315 today to schedule an appointment. With our dedication to quality and customer satisfaction, you can trust Northeastern Masonry & Chimney to provide reliable solutions that protect your home.
A lack of flashing can leave your system exposed to chimney leaks that can result in a smelly and/or decayed chimney, but you can take steps to stop it!