Roof Flashing 101: How Flashing Protects Your Home
- chloe9199
- Jul 24
- 3 min read

When homeowners think about their roof, shingles are usually the first thing that comes to mind. But you can’t forget about the flashing.
Flashing is a critical part of every roof. It’s responsible for preventing water from seeping into your home by directing water away from seams and critical areas. Without flashing, your home is more susceptible to water damage, which can lead to frustrating and costly repairs down the road.
In this blog, we’re discussing the fundamentals of flashing, so you can have a better understanding of what it is, why it’s so important, and the signs that you may need professional flashing repairs.
Different types of flashing
Each type of flashing has a specific use depending on where it will be installed on your roof. Some of the most common types of flashing materials used are:
Aluminum flashing
Metal flashing
Galvanized steel
There are also several less common types of flashing, including:
Step flashing
Counter flashing
Valley flashing
Drip edge flashing
Vent pipe flashing
Kickout flashing
Step flashing is the most common type and is typically used to connect your roof and wall, or chimney. Its layered pattern helps direct water away from your wall or chimney.
Continuous flashing consists of one large piece of metal used to prevent water from accumulating near a wall or chimney on a sloped surface.
Valley flashing is used on roofs with two sloping surfaces. The slope helps move water to the gutters and away from your home.
Drip edge flashing is located at the edge of your roof. Like valley flashing, a drip edge allows water to run off, preventing it from seeping into your fascia or siding.
Vent pipe flashing is used to create a waterproof seal around vent pipes, which prevents leaks from your roof.
Kickout flashing is another critical component of your roof. This type of flashing diverts water to your gutter, so it does not penetrate through your siding.
Understanding the different kinds of flashing is essential because each type of roof flashing protects a specific aspect of your roof.
Why flashing is crucial to protecting your roof against water damage
It’s critical that your flashing is in good condition to prevent water from entering vulnerable areas of your roof, such as skylights, vent pipes, and chimneys.
Water damage from roof leaks can quickly turn into an expensive repair or, in some cases, a roof replacement. Over time, minor leaks can allow mold and mildew to grow, and in extreme cases, can lead to structural damage.
Not only are roof repairs costly, but they can start to add up if you need to factor in costs for remediation to treat mold and mildew growth.
Without flashing, you’re jeopardizing your home and can create a frustrating situation if you have leaks.
Signs your flashing is damaged
Some of the most common signs of damaged flashing are:
Water stains on your ceiling
Musty smells caused by mold and mildew
Visible leaks where flashing is located
Noticeable corrosion or rust on metal
Signs of damage: including missing, cracked, or loose flashing
If you suspect you have water damage or a water leak, it’s imperative to seek expert advice from a professional roofing company. Taking swift action ensures the leaks are caught early enough, so you can avoid more expensive repairs or replacement later on.
Be worry-free with Ken-Z Roofing!
One way to combat premature flashing failure is by hiring an experienced, licensed roofing company, such as Ken-Z Roofing. We offer a complimentary 12-Point Inspection that assesses the overall condition of your roof and identifies specific areas of concern.
Then, we provide a comprehensive estimate, proposing long-lasting solutions that give you peace of mind knowing your home is protected from potential water damage.
If you’re experiencing issues with your flashing, contact us today by calling 815-395-8244.
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