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What Is Roof Flashing?

Learn more about roof flashing and what it does for your roof
Oct 27, 2020

What Is Roof Flashing?

Learn more about roof flashing and what it does for your roof
Oct 27, 2020
What Is Roof Flashing?


Flashing Help from Our Roofers

If you’re unfamiliar with how roofing works, it might come as a surprise to you that your roof has more to it than just the shingles or metal panels. It’s important to know and understand the components of your roof so that you can troubleshoot the issues and easily communicate the problem with your roofing contractor.

One aspect of your roof that you might not be too familiar with is the flashing. Here is what you need to know about roof flashing.

What is Roof Flashing?

This roofing term refers to the thin pieces installed in order to prevent water from passing through a structure in the roof. It’s also known and a weather resistant barrier.

How Does Flashing Work?

Flashing is generally made from aluminum or galvanized steel. It’s placed over joints and wall construction. You might also find it in the valleys, around chimneys and pipes, and around skylights as well. It works to prevent water from penetrating your roof. Flashing in different areas, such as a valley, collects water from two slopes and directs it down to the gutters. Different areas of flashing work in different ways, but each of them direct water to the gutters.

How Many Types of Flashing Are There?

Depending on the shape of your roof, you might see all types of flashing, or just a couple different types. Here are the main types you could see installed on your roof.

Valley flashing

Valley Flashing

As explained above, this type of flashing moves water from two slopes to the gutter.

Chimney Flashing

This is almost exactly what it sounds like. It’s flashing that goes around your chimney to direct water away from penetrating and breaking down your chimney. You can find base flashing at the bottom, step flashing on the sides, and saddle flashing at the top. Over the tops of that, is cap flashing that is caulked into the chimney to prevent water from penetrating behind them.

Continuous Flashing

This type of flashing is used to protect a join that is between a vertical wall and a sloped roof.

Metal roof flashing

Step Flashing

This type of flashing is made up of a variety of right angled metal sheets. Each section of flashing overlaps the section beneath it and is caulked underneath siding or skylights. It’s meant to protect dormers and can also be used for chimneys as well.

Vent Pipe Flashing

You’ll find this flashing protecting the flues and pipes on your home. It has a cone flange and a flange at the base. The flange is worked into the shingles once they are applied.

Drip Edges

Drip edges are installed to prevent water from seeping underneath the rakes and eaves. You’ll find it underneath roofing felt.

Trying to understand the many components of your roof can be difficult to keep up with, but educating yourself makes it a little easier. However, when it comes to dealing with roof leaks due to flashing failure, it’s best you leave it up to the professionals. If you’re experiencing leaks in your roof, don’t hesitate to contact our roofing company. Our roofers are happy to come out and troubleshoot the issue and can even offer you a free estimate on your roof. Call us for roof repair today!