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Roofers have a lot of questions about our products. In particular, people want to know: Is our peel & stick underlayment compatible with different types of roofing materials? The short answer is yes! Epilay’s peel-and-stick underlayments are all compatible with different kinds of roofing materials.

But let’s dive deeper into this subject. Read below to learn why compatibility is crucial, and to learn more about how our peel-and-stick products help with different roofing materials.

Why is Compatibility between Roofing Materials and Underlayment Important?

Since underlayment is the layer that goes between the roofing material and the roof deck, compatibility is important because when your materials are incompatible, you run the risk of a roofing system that won’t last the duration of its intended lifespan. Imagine what could happen if you put a heavy roofing material, like slate shingles, on top of an extremely lightweight underlayment, like #15 asphalt felt. The slate will last a lifetime, but the felt will only last between 12 and 20 years—and probably less than that since the extra weight of the slate will wear out the underlayment faster than it should.

That’s why compatibility is crucial. It helps you maximize the lifespan of the entire roofing system while safeguarding the beneath from the elements.

Compatibility with Common Roofing Materials

Now, let’s talk about some of the most common roofing materials—and how our peel-and-stick underlayment works with them. For starters, Epilay has three different peel-and-stick products: EpiStik Plus, which is our lightest peel-and-stick with a 48-mil thickness; EpiStik SA-250, which gives you 50-mil thickness; EpiStik Ice & Water, which is our thickest, toughest product featuring 55-mil thickness.

All three are compatible with a variety of roofing materials including asphalt shingles, metal roofing, shakes, concrete tiles, and slate. So which do you choose for your next project? Here are some considerations:

Asphalt Shingles

Shingles (and other types of tiled roofing materials) require a lot of fasteners—and all of our peel-and-stick products deliver excellent nail sealability, which makes any of them a great choice for this type of project. Since asphalt shingles are lightweight, feel free to use a lighter product like EpiStik Plus. But in areas where high winds often damage roofing, or where snow, ice dams, and moisture are a big concern, you may want to upgrade to EpiStik Ice & Water for extra protection.

Metal Roofing

Metal roofing is heavier than asphalt shingle, which means you’ll need a heavy-duty peel-and-stick product to match. All of our EpiStik products are strong enough to stand up to the rigors of metal roofing—and protect the roof deck from moisture infiltration over time, too.

One concern with metal roofing is that the weight and size of each panel make it hard to maneuver on a rooftop (unless you’re installing metal shingles). For that reason, EpiStik SA-250 and EpiStik Plus are great choices because both offer our high-traction GripWalk surface to help prevent slips and falls.

Clay, Concrete, and Slate Shingles and Tiles

These are some of the heaviest materials you can install—and thus, they require the increased durability that you get with any of our peel-and-stick underlayments. They also typically have a long lifespan, which means that to get the most out of the roofing system, you need an underlayment that can go the distance. Each EpiStik product comes with a limited lifetime warranty, which means that you can rest assured that these underlayments have the staying power you need.

For these types of roofing materials, choose based on your priorities: Go with EpiStik Ice & Water if you need extra durability and moisture protection, EpiStik Plus for a more budget-friendly but still incredibly durable option, or EpiStik SA-250 for increased durability over EpiStik Plus but a lower cost compared to EpiStik Ice & Water.

Other Materials

Peel-and-stick underlayment is incredibly versatile. Not only does it work with all of the materials we highlighted above, but also less common roofing types like wood shakes and shingles, or even solar panels. No matter what type of roofing material you’re installing, you can’t go wrong with an EpiStik underlayment.

Tips for Ensuring the Best Outcomes with EpiStik

Peel-and-stick underlayment is a bigger investment compared to synthetic underlayment or asphalt felt. To get the most out of it, try these tips:

  • To do the job right (and avoid voiding the warranty), make sure to follow the manufacturer’s installation instructions.
  • Overlap peel-and-stick underlayment by at least six inches along seams to create a watertight seal.
  • Work carefully as you unroll and apply the underlayment to ensure that it adheres properly to the roof deck, and to prevent wrinkles and bubbles.
  • Take extra care around skylights, chimneys, vents, skylights, and along the roof’s edges to ensure that the underlayment seals properly for a leak-free installation.

Use EpiStik to Get Great Results with Any Roofing Material

No matter the job, there’s an EpiStik peel & stick underlayment to match. Want to learn more about which may be the best fit for your specific project? Reach out to our experts today, and we’ll help you choose the right underlayment.