When selecting a synthetic roofing underlayment, there are a lot of factors to consider. Outside of weather concerns, two of the biggest factors include the roof’s pitch and the roofing material that the builder or homeowner has selected. How do you know which choice is the right one? Let’s take a look at both of these factors to help you decide!

Choosing Based on Roofing Material

Because Epilay’s Protectite line is designed to have increased strength and durability over #15 and #30 roofing felt, any Protectite products, from the Superior grade on up to Platinum, can be used with any roofing materials. Each of these underlayments has the durability and tear strength needed to stand up to a variety of roof types. However, if you want to choose products with higher durability for heavier roofing materials, then here is a guide that will help you choose between Protectite grades:

  • Protectite Superior: This underlayment has a 7-mil thickness, which makes it our lightest weight underlayment. Even at this thickness, Protectite Superior is 25 times stronger than traditional felt, and up to four times lighter. This is the ideal underlayment for asphalt shingle and residential metal roofs.
  • Protectite Ultra: Protectite Ultra is the step above Superior, and it features an 11-mil thickness. As with the Superior grade, this underlayment is 25 times stronger than #15 and #30 roofing felt. The increased strength makes this product ideal not only for metal and asphalt roofing, but for shake roofing, too.
  • Protectite Platinum: This is the strongest grade of Protectite underlayment, and as such, it is 35 times stronger than felt and half the weight of felt. With a 17-mil thickness, Protectite Platinum is ideal for even the heaviest roofing materials, like slate or concrete and clay tiles. Of course, it can also be used as added protection beneath lighter materials like residential metal and asphalt shingles.

If building codes are a concern in your area, then keep in mind that all Epilay products are designed to meet code standards nationwide for any roofing material.

What about The Roof’s Pitch?

The roof’s pitch is almost a larger concern when it comes to choosing an underlayment product. In general, the steeper the roof, the more tear strength you will want. So with that consideration in mind, here are our recommendations for the best Epilay products based on roof pitch.

  • For 8/12 roofs and below (in other words, for roofs that have an eight-foot rise or less over twelve horizontal feet), Protectite Superior is a great choice. It’ll give you all the tear strength needed for a low sloped roof.
  • For 10/12, 12/12, and roof slopes with even steeper pitch ratios, consider either Protectite Ultra or Platinum, or choose Platinum for roofs with extreme slopes. The higher pitch means you’ll need more tear strength to keep the roof deck protected.

As you can see, Epilay makes the choice between roofing underlayment products easy. If you’d like to learn more about how to choose the right Epilay underlayment for your roofing project, contact us to find a distributor near you.