What You Need to Know About Metal Roofing Underlayment

By Stacy Mellete

Metal roofing continues to be one of the most popular choices among homeowners along the Gulf Coast because of how beautiful and durable the material is. Also, it doesn’t require much maintenance and is resistant to wind and fire. Installing it must be done properly, which includes using the appropriate underlayment. However, the options and the process involved for this is closely the same as the other roofing materials like asphalt shingles.

In today’s blog post, local roofing contractor Tampa FL,  Affordable Roofing Systems explains everything you need to know about metal roofing underlayment.

Options for Underlayment

A typical metal roof underlayment is often made of a layer of felt or building paper. It can help prevent leaks from entering the attic and offers a bit of insulation. While local building codes specify the weight of the paper, a 30-pound product is considered the most ideal. Before installing the metal panels, an extra slip sheet layer may be placed on top of the felt underlayment. Red rosin paper is often used to prevent the metal from sticking to the felt during installation.

Meanwhile, other underlayment materials for metal roofing are available, such as those made of polymer. These are thinner and easier to work with than layers of felt and rosin paper. These sheets are not only strong but are also waterproof.

Pointers for Installation

Working on the metal roof underlayment is easy. Strips of felt paper or polymer underlayment are added across the roof on a horizontal position. Layers must overlap by at least four inches as this is being done. The ends of each strip are stapled. The middle of the strips must also be stapled once per square foot. Underlayment can likewise be overlapped at the valley or the part of the roof where two roof planes meet.

Affordable Roofing Systems is known as the premier installer of metal roofing systems in our area. We offer a blend of beauty, functionality, low maintenance, competitive pricing, and the flexibility to protect your home in style.

To find out more about your options, call us at (813) 542-8462 or fill out our contact form to request a free estimate.

We serve residents of Tampa and St Petersburg, FL.

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Our Roofing Solutions

Your roof has an important job to do to keep your home dry, but it can also be an impressive home feature.


Our stone coated steel roofing system is available in a wide range of styles including Tile, Shake, Slate, and Shingle, and in a variety of colors. We’ll help you to choose one that will fit your home’s style and your budget.


As the most-used roofing type across North America, asphalt strikes a balance between price and durability, with a life expectancy of up to 20. Shingles are available for those who want affordable, genuine slate roofing.


Tile roofs offer unparalleled value when cost per year of use is factored in. While upfront costs are higher, customers who choose a clay or concrete tile roof will enjoy the aesthetics and quality for a lifetime.


Metal roofs today come in a wide array of colors and finishes. Innovations in metal roofing technology have significantly enhanced the performance of metal roofs.

TPO Membrane

TPO can be installed to any scale with some of the world’s largest building utilizing TPO roofing systems – it comes in strips typically 8ft 10ft and 12ft wide that are heat welded on site.

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