Installing metal roofing over a shingled existing roof is a great way to not only maximize the longevity of a new steel roof, but also to save on the expenses of removing an existing shingle roof prior to re-roofing.

Why should I Install Metal Roofing Over a Shingled Existing Roof?

Shingles might be an inexpensive roofing material, but they require a lot of maintenance and need to be replaced frequently – every 10-20 years. Even though there are programs available, most shingles do not become recycled after tearoff. Rather than sending them to the landfill, leaving them in place under a steel roof that will last between 40 to 50 years will keep them out of the earth.

1. Longevity of Lifespan

Metal roofing requires a more significant up-front investment than new shingles, but metal roofing can last up to 40 or 50 years with minimal to no maintenance. Spread that investment out over 40+ years, and you’ve made a smart choice.  It just might be the last roof you ever invest in during your lifetime.

2. Curb Appeal of your Existing Roof and your Future Roof

And then there’s curb appeal. Maybe you want your home to stand out in the area and look totally awesome…. Or maybe you are thinking of selling your home someday. The appearance and functionality of the home’s roof will be a huge benefit to either yourself or future homeowners.

Whether you stay in your home, or plan to sell – the longevity of the steel roof and the fact that they won’t have to fund a roof replacement while living in the home are huge benefits. Steel roofing comes in a vast variety of styles and colors, much more than architectural asphalt shingles.

And then there’s inflation.  What may cost $10,000 to replace a roof now with shingles may cost $20,000 in 15 years due to rising wages and cost of materials.  This alone makes the long term investment into a steel roof even more appealing.

3. Steel Roofing is Recyclable

Longevity and aesthetics aside, metal roofing is a 100% recyclable material. Not only is it made from recycled materials, but it is recyclable at the end of its lifespan.

Installing a metal roof over an layer of shingles on an existing roof also means that any shingle tear off expenses, including disposal fees, are avoided entirely.  As a result, labor costs, business downtime, and removal costs of an existing roof are almost entirely avoided.

So when you’re thinking about re-roofing your existing roof surface, put into consideration the cost, curb appeal, and longevity of the future before you decide to re-roof with shingles or placing a steel roof over your existing shingled roof.

Contact us or browse more information at  Our team is ready to help you on your next project!

To learn more about metal roofing, visit the Metal Roofing Alliance Website – The Metal Roofing Resource for Homeowners.


Existing Roof
Existing Roof