Can You Install a Metal Roof Over Shingles? A Comprehensive Guide

A black metal roof on a house in the woods.

Can You Install a Metal Roof Over Shingles? A Comprehensive Guide

When it’s time for a new roof, homeowners often grapple with decisions regarding materials and installation techniques. The experts at Dean Roofing Company frequently address a common query, “Can we place a metal roof over shingles?” With decades of experience as a leading roofer in Clearwater FL, we have garnered insights into the intricacies of this practice. In this guide, we’ll share our knowledge, bringing you the pros, cons, and essential considerations.

Advantages of Installing Metal Roofing Over Shingles with Dean Roofing Company

Longevity and Durability

Opting for a metal roof ensures a lifespan ranging from 40 to 70 years, contingent on material choice and maintenance. When the metal is installed over existing shingles, there’s an added benefit of enhanced insulation and protection. This dual-layer approach is one reason many homeowners and roofing companies in Clearwater choose it for its durability.


A significant advantage of overlaying a metal roof on shingles is the savings on removal and disposal expenses. Dean Roofing Company emphasizes this approach not only for its cost benefits but also for its reduced environmental impact, minimizing waste.

Enhanced Insulation

The existing shingles act as an added insulating layer beneath the metal. This structure can significantly boost energy efficiency, a major factor when considering the fluctuating weather in Florida.

Key Considerations Before Installation

Weight Concerns

While metal roofs are inherently lightweight, combining them with shingles can raise concerns about the total weight on a house’s structure. Hence, it’s crucial to ensure a comprehensive inspection before installation.

Building Codes and Regulations

Local building codes might restrict the number of permissible roof layers. Before making a decision, consulting with roofing contractors in Clearwater FL, like the seasoned professionals at Dean Roofing Company, is advised to ensure compliance.

Potential for Moisture Trapping

Layering a metal roof over shingles carries a risk of moisture entrapment, which can escalate to mold or wood rot issues. Utilizing a top-quality underlayment can mitigate these risks effectively.


The decision to install a metal roof over shingles is one influenced by various factors, from cost considerations to structural integrity. With the insights shared by Dean Roofing Company, one of the trusted names among roofing companies in Clearwater, homeowners can make informed decisions that stand the test of time.

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