Should Roof Flashing Be Replaced During a Roof Replacement?

Should Roof Flashing Be Replaced During a Roof Replacement?

Jul 11 2025

If you’re planning a roof replacement in Collierville, TN, you’re probably wondering—does the flashing get replaced too? It’s a great question, and the answer isn’t always a simple yes or no.

At Restoration Roofing, we take pride in walking our homeowners through every detail of the roof replacement process. One of the most overlooked—but most important—components we assess during every job is your roof flashing.

In this blog, we’ll help you understand:

  • What roof flashing is
  • Whether it gets replaced during a new roof installation
  • Why some contractors skip it
  • What materials can be used

Let’s break it down:


What Is Roof Flashing?

Roof flashing is thin metal installed in vulnerable areas of your roof to divert water away from seams, joints, and transitions—places where water is most likely to penetrate. It acts as a protective barrier against leaks around chimneys, valleys, walls, vents, and more.

There are different types of flashing, each used in specific locations:

Apron Flashing

Used where the roof meets a vertical wall (like chimneys or dormers). It’s typically L-shaped and directs water away from the penetration.

Step Flashing

Used where a roof meets the side of a wall or chimney. Each piece of flashing is layered with a shingle in a “step” pattern to provide leak protection up the entire length of the wall.

Should Roof Flashing Be Replaced During a Roof Replacement?

Counter Flashing

Also used on walls or chimneys but installed on top of step flashing. It’s embedded into mortar joints and overlaps the flashing beneath to add another layer of protection.

Valley Flashing

Found in roof valleys (the channels where two roof slopes meet). In open valley systems, a long strip of metal is laid down to handle heavy rainwater flow. It’s essential for some premium shingles and specialty roofs.

Should Roof Flashing Be Replaced During a Roof Replacement?


Do We Replace Flashing During a Roof Replacement?

In most cases, yes—we recommend replacing all roof flashing during a full roof replacement.

Here’s why:

  • Flashing needs to match the lifespan of your new roof
  • It ensures all components age consistently
  • Replacing flashing avoids relying on old metal or questionable prior workmanship
  • New materials offer better rust resistance and aesthetic appeal

However, if the flashing is in excellent condition (no rust, cracks, or installation flaws), it might be reused. We evaluate this during our inspection—but only if we’re confident in its long-term integrity.


Why Some Contractors Skip Flashing Replacement

Unfortunately, not every roofing company takes flashing seriously.

Some may cut corners by reusing old flashing—or leaving it off the quote entirely—to lower the estimate and win the job.

That might sound like a good deal… until your brand-new roof starts leaking a few months later.

Flashing is critical to roof performance. If it’s left outdated or poorly installed, your roof is at risk for premature water damage and costly repairs.

Always ask your roofer:

  • Are you replacing my roof flashing?
  • What type of flashing are you installing?
  • Is it included in the estimate?

At Restoration Roofing, we’re fully transparent about every material being used—and we never compromise on flashing quality.


Types of Metal Used for Flashing

The most common flashing metals we use in Collierville are:

Galvanized Steel

Strong, rust-resistant, and cost-effective. This is our standard option for most asphalt roofs.

Aluminum

Lightweight and more budget-friendly. Works well for simple roof designs, though it’s softer than steel.

Copper

A premium flashing material. Copper develops a beautiful patina over time, never rusts, and is often chosen for high-end or historical homes.

The right metal depends on your roof system, style preference, and budget. We’ll help you decide what’s best for your project.


Should You Replace Flashing If It Looks Fine?

Even if flashing looks okay, replacing it offers peace of mind. That way:

  • All components are new and under warranty
  • Your roof system performs as a whole
  • You eliminate future surprises related to hidden corrosion or improper sealing

It may be a small piece of the roof system—but flashing plays a big role in leak prevention.


What Else Gets Replaced During a Roof Replacement?

Flashings are just one part of the full roof system. A complete replacement by Restoration Roofing also includes:

  • Underlayment
  • Drip edge
  • Ventilation components (ridge vents, box vents, etc.)
  • Ice and water shield
  • Shingles or your chosen roofing material
  • Fascia or decking repair (if needed)

We provide a detailed list in every proposal so you know exactly what’s included.


Bottom Line: Replace Flashing for a Leak-Free Roof

Your roof flashing is one of the most important components in preventing water damage. When replacing your roof, you want to make sure everything is built to last—including the flashing.

At Restoration Roofing, we believe in doing the job right the first time—no shortcuts. Our team proudly serves Collierville and the greater Memphis area with honest inspections, expert workmanship, and reliable materials.

Ready for a free roof inspection? Call us today or request a quote online to get started with a trusted local team!

Contact us today to schedule your inspection and get a no-pressure quote from Collierville’s trusted roofing experts.

Choose Restoration Roofing and get the protection your home deserves. Give us a call at 901-854-3402 or fill out our Contact Us form and we will reach out to you with our next available inspection. Make sure to follow us on Facebook and Instagram for more tips on finding the best roofing contractor for you.