When it comes to your roof, most homeowners think about shingles, gutters, or leaks — but few realize how important chimney flashing is to the overall integrity of their home. Poor or damaged flashing is one of the most common causes of roof leaks, particularly around chimneys.
At Baba Roofing, we specialize in roofing and chimney solutions for Long Island homes. In this post, we’ll explain what chimney flashing is, why it’s critical, common signs of failure, and why professional installation and repair matter.
What Is Chimney Flashing?
Chimney flashing is a thin layer of metal (usually aluminum or galvanized steel) installed where your chimney meets your roof. Its purpose is to create a waterproof seal between the roof and chimney — a spot that would otherwise be vulnerable to water intrusion due to movement, settling, and weather exposure.
Flashing is typically installed in multiple layers:
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Base Flashing – Installed at the roof surface where it meets the chimney
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Step Flashing – Interwoven with shingles and placed in steps along the sides of the chimney
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Counter Flashing – Installed into the chimney masonry to cover and seal the step flashing
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Cricket or Saddle Flashing – Used on the back side of larger chimneys to divert water around them
Done right, this layered system ensures long-term protection against water penetration.
Why Is Chimney Flashing So Important?
1. Prevents Roof Leaks
The junction between your roof and chimney is naturally prone to leaks due to expansion and contraction from temperature changes. Flashing seals that gap and directs water away from vulnerable joints.
2. Protects Against Structural Damage
Without proper flashing, water can seep into your attic, wall cavities, or ceiling — leading to rot, mold, mildew, and even structural failure over time.
3. Saves You Money
Replacing flashing is far more affordable than repairing water-damaged framing, drywall, or insulation. Preventive maintenance can save you thousands.
4. Preserves Home Value
A roof inspection revealing poor chimney flashing can become a deal-breaker during a home sale. A solid, water-tight roof adds confidence and value to your property.
Signs of Flashing Failure
Chimney flashing doesn’t last forever. Here are some signs that your flashing may be failing and needs repair or replacement:
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Water stains on walls or ceilings near your chimney
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Damp odors or mold in your attic
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Visible rust or separation of flashing from masonry
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Cracks in the caulking or mortar
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Shingles pulling away from chimney edges
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Dripping noises during rain around the chimney area
If you notice any of these signs, it’s time for a professional inspection.
Causes of Flashing Damage
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Age and Weather: Flashing materials degrade over time, especially in areas like Long Island where freeze-thaw cycles are common.
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Improper Installation: Many leaks result from flashing installed incorrectly — one of the most common issues we fix.
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Storm or Wind Damage: High winds or falling debris can dislodge or bend flashing.
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Poor Repairs or Sealants: Quick fixes like roofing cement or caulk may not last and can cause more issues down the line.
Why You Should Choose a Professional for Chimney Flashing
At Baba Roofing, we’ve seen it all — from DIY patch jobs to improperly installed flashing that caused years of hidden damage. Here’s why working with a professional makes a difference:
✅ We use premium metal flashing, sealed properly and secured to both the roof and chimney.
✅ We know how to layer flashing with your roofing system, so everything works together.
✅ We inspect for underlying damage and correct any structural or ventilation problems.
✅ Our work is fully insured, code-compliant, and built to last.
Get a Free Chimney Flashing Inspection Today
If your chimney flashing is old, rusted, or leaking, don’t wait for the damage to spread. Whether you need repair or full replacement, Baba Roofing is here to help.
📞 Call us today at (631) 552-6884
🔗 Or click here to schedule your free estimate
We proudly serve Long Island with expert roofing and chimney services trusted by homeowners across Suffolk and Nassau County.
Baba Roofing – Built on trust. Backed by quality. Focused on protecting your home.
