Schedule Appointment
Austin Pro Calender Icon
Appointment
phone icon
Call Us
Austin Pro Siding, Windows, Roofing, Patio Covers Logo

Metal Roof Installation Over Old Shingles: Yay or Nay?

By
austin pro
Written by Austin Pro Management
July 22, 2024

While shingles are the most widely used roofing option in Northern America, metal roofs are also popular in their own right. If you’re replacing your shingle roof with a metal roofing system, it makes sense to ask whether the old shingle layers have to be removed prior to the installation of the new roof.

In this article, Austin Pro Siding, Windows & Roofing, one of the most trusted roofing and siding replacement companies in the area, weighs in on whether existing asphalt shingles need  to be removed to make way for the installation of your metal roof.

The Experts Weigh In

The short answer is: no. In fact, a majority of metal roofing installations are done over existing layer shingles. This is because metal roofs are lighter than asphalt roofs. For instance, steel shingles only weigh around ¼ of the weight of asphalt shingles, while aluminum shingles only weigh about ? of what standard asphalt shingles weigh.

Installing metal over asphalt shingles is feasible because it won’t affect the metal roof’s performance at all. While most roofing and siding installers would advise against installing asphalt shingles over old shingle layers due to warranty and roof performance purposes, installing metal over old shingles abides by completely different rules.

The Perks

You can even benefit more from installing your metal roof over old shingles. First, no shingles removed from the roof means no shingles ending up on the landfills. In fact, having an extra layer increases the thermal resistance of the roof assembly. Apart from being an eco-friendly move, you can also save some remodeling dollars by not removing the old shingles and disposing of it, as some roofers charge extra for these services.

Want a hassle free roofing experience? Austin Pro Siding, Windows & Roofing is the company to trust! Our experience as one of the leading roofing and siding companies around allows us to provide our clients with the best exterior renovation experience. Call us today at (512) 550-0000 to request an appointment.

The Dirty Secret Behind Those $199 Window Replacement Ads Flooding Austin Neighborhoods
July 14, 2026
The Dirty Secret Behind Those $199 Window Replacement Ads Flooding Austin Neighborhoods

Those $199 window replacement mailers flooding Austin neighborhoods are designed to get a salesperson in your door — not to give you a real price. Learn how budget window companies use bait-and-switch tactics, inferior vinyl, and shoddy installation to cut corners at your expense. Here's what a trustworthy window replacement quote actually looks like in Central Texas.

Comparing Double-Pane and Triple-Pane Windows
February 28, 2026
Comparing Double-Pane and Triple-Pane Windows

Is triple-pane worth the investment? We compare the energy efficiency and noise reduction benefits of double vs. triple-pane glass.

Asphalt Shingle Color: Does It Matter?
February 28, 2026
Asphalt Shingle Color: Does It Matter?

Does roof color affect energy efficiency? We answer common questions about how shingle color impacts your home's temperature and style.

The Honest Truth About How Composite Decking Actually Performs in the Brutal Austin Heat
March 20, 2026
The Honest Truth About How Composite Decking Actually Performs in the Brutal Austin Heat

Austin's extreme heat puts every deck material to the test — and composite decking has a complicated reputation. This guide cuts through the myths to explain how modern capped composite boards actually perform in Central Texas summers, and what color, product type, and installation details make or break your investment.

Uncovering the Legacy: The Evolving Story of Texas Roofing
February 28, 2026
Uncovering the Legacy: The Evolving Story of Texas Roofing

From the frontier to the suburbs, we uncover the history and evolution of roofing in Texas.

Is a Metal Roof Actually Worth It in Austin Now? The 2026 Break-Even Math on Heat, Insurance, and the New Tax Law
July 14, 2026
Is a Metal Roof Actually Worth It in Austin Now? The 2026 Break-Even Math on Heat, Insurance, and the New Tax Law

A standing seam metal roof in Austin costs roughly double a shingle roof — but in 2026, rising cooling bills, tightening insurance rules, and the expanded homestead exemption are quietly changing the calculus. Here's the honest break-even math for Austin homeowners who plan to stay put.

Tips on Choosing Siding Trim Colors
February 28, 2026
Tips on Choosing Siding Trim Colors

The right trim pops. Get expert tips on selecting trim colors that complement your siding perfectly.

The One Type of Roof Storm Damage Your Austin Insurance Policy Won't Cover Anymore
April 4, 2026
The One Type of Roof Storm Damage Your Austin Insurance Policy Won't Cover Anymore

Texas insurance carriers are quietly adding cosmetic damage exclusions that leave Austin homeowners on the hook for thousands in hail and wind roof repairs. Understanding the difference between cosmetic and functional roof storm damage—before a storm hits—could save your claim. Here's what your policy may no longer cover, and what to do about it.