What Is Chimney Flashing & How Does It Work?

original infographic asking about the different types of flashing - step, counter, base
Unless you’re regularly inspecting roofs or spending a lot of time craning your neck to investigate the chimneys in your area, there is a high chance you might not even notice the metal shingle-like material between the base of your chimney and the roof of your home. This is known as flashing…and did you know that the flashing plays a huge role in protecting both your chimney and your home from water intrusion and eventual deterioration?

If you’re a homeowner seeking chimney flashing repair near you (or anything else chimney-related), there is no team better than SureGlow Stove & Chimney. Our technicians are friendly, knowledgeable, and certified. Give us a call or book online today.

How Does Chimney Flashing Protect Against Water Damage?

Flashing is constructed from metal and is installed as a weather-resistant/waterproofing agent for the area where the roof meets up with the chimney. Because your roof and your chimney are made of different materials, they contract and expand with the weather and temperature changes at different rates. This creates gaps and separations where water can leak in through your ceiling or into the base of the chimney.

Depending on the type of flashing, the material and method of installation may differ slightly…but the purpose is always the same – to seal off any openings and ensure your home is protected from rainfall, melting snow, and other water damage or leaks.

Are There Different Types of Flashing?

Yes, there are – both in material and method of installation. For chimneys specifically, the following three types of flashing are necessary in order to create a watertight seal:

original infographic asking about the different types of flashing - step, counter, base
  • Step flashing, which is shaped like an elongated metal shingle bent into an “L.” This type of flashing is placed under the roof shingles and up against the base of your chimney on all sides.
  • Counter (sometimes called “cap”) flashing is installed as a second layer on top of the step flashing. Counter flashing acts as added protection as it is designed to be inserted into the brick of the chimney.
  • Base flashing ensures that the barrier created between the chimney and the roof is reinforced and impenetrable. It is installed around the base of the chimney. 

As far as materials, similar to other metal-based chimney parts, there are several that are common:

  • Aluminum
  • Varieties of metal (including stainless, galvanized, and aluminum)
  • Copper

The two that are used the most are aluminum and stainless steel, as the former is lightweight and easily moldable, while the latter is a bit sturdier, more durable, and has a longer lifespan.

When it comes to choosing what flashing materials and types are best for your home, trust SureGlow Stove & Chimney to help you from beginning to end. Schedule an appointment online today.

What Are the Signs of Damaged or Faulty Chimney Flashing?

Damaged flashing is one of the most common causes of chimney leaks and eventual water damage. It’s recommended that you have your chimney professionally inspected every year, but that doesn’t guarantee that something might not occur in between these professional overviews, so it’s important to keep an eye out.

Here are some signs to look for if you worry about the state of your flashing:

  • Water damage to your ceiling near the fireplace or home heating appliance
  • Leaking or dripping water inside your fireplace or wood stove
  • Discoloration in the brickwork of your chimney
  • Gaps or openings in the caulking between the flashing and the chimney

Should a Roofer Fix My Chimney Flashing?

No, but this is a common misconception. While roofers are experts in roofing materials and structures, chimney flashing requires specialized knowledge of the chimney structure to ensure a proper and durable seal. Remember that flashing is meant to keep your chimney and its surrounding areas as safe as possible…so you want someone who knows these systems in and out!

Just like you wouldn’t hire us to repair a burst pipe or to complete a kitchen appliance repair, don’t hire a roofer for a chimney-related job.

Depending on your needs, we can repair or replace flashing while inspecting the chimney structure itself, ensuring the job is thorough and that nothing is missed. We can also determine whether you need any other chimney leak repair services, like a new chimney cap installed or waterproofing completed.

Call Today for Quality Fireplace Services From Us

If you’ve noticed any of signs of water damage in your chimney or find that you have other chimney-related questions or concerns, don’t hesitate to reach out to someone on our team. Here at SureGlow Stove & Chimney, we aim to make your chimney experience as pleasant and seamless as possible. Book online or call us today to learn more. We look forward to serving you.

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