Asphalt Saturated Felt vs. Rubberized Asphalt vs. Non Bitumen Synthetic
Roofers are faced with all kinds of choices as they design and install new roofing systems. One of those choices is the type of underlayment to be installed beneath the roofing itself. It should be a water-resistant barrier that acts as a secondary line of defense...
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Why Self-Adhered Underlayments Provide Higher Wind Uplift Resistance
Let’s get started with an announcement! Our Plystik Plus self-adhesive underlayment was recently approved for use with Polyset AH-160 Roof Tile Adhesive. Why is this significant? Well, to understand that, we’ll need to learn a little bit about Polyset’s product and...
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How Long Can Synthetic Underlayment be Exposed
For roofers making the choice between asphalt felt versus synthetic underlayments, there are a lot of factors to consider. Asphalt has been the standard for decades, and it remains a popular choice because roofers are familiar with it and because it’s typically...
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Why R&D is So Important to Epilay Synthetic Underlayment Products
Research and development are important at Epilay for a broad variety of reasons. We want to make sure that our underlayments provide the best protection possible for a roof deck, and we also want those products to be durable and long lasting. But there’s one part of...
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Is Underlayment Required Under All Asphalt Shingles?
Underlayment exists to protect the deck so that if moisture does get past the primary roofing material, the underlayment can stop it from damaging the deck.
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What Type of Synthetic Underlayment Should I Use for a Metal Roof?
Synthetic underlayments have been around for a while, but prior to their development, roofing felt was the industry standard. More and more, builders are switching to synthetics, but some still have questions about which products to choose. If you’re thinking about...
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The Best Fire Resistant Roofing Materials
Fire resistance is one of the most important considerations when choosing roofing materials. One of the big reasons for this is that there are a lot of different mishaps that could cause a fire on the roof. Lightning strikes have been known to do it, and so have...
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Is Ice and Water Shield Necessary?
Here’s a question that builders ask a lot: What is ice and water shielding? And more importantly, when is it necessary? Where Epilay’s synthetic underlayment roofing products are concerned, our Plystik Plus, which is a peel-and-stick underlayment, features Ice Dam...
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Do Roofs Need Underlayment?
There’s a reason why building codes, roofers, and roofing associations alike recommend—and even often require—underlayment. But sometimes questions arise. Is underlayment truly necessary? How does it benefit the roof, particularly since underlayment is designed to be...
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Smooth vs. Granular Roofing Underlayment
Roofers often wonder what the differences are between granular and smooth roof underlayments. There are several differences between the two, and a few considerations that you’ll need to account for before choosing smooth vs. granular underlayment. Let’s start with a...
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Does Peel and Stick Synthetic Underlayment Cause Reroofing Problems in the Future?
One question that comes up a lot regarding Epilay’s Plystik Plus is whether or not it will cause problems in the future—usually the next time the roof needs to be replaced. For the most part, peel and stick underlayment shouldn’t cause you any issues, but let’s expand...
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Is Synthetic Underlayment Breathable?
If there is one frequently asked question about Epilay synthetic underlayments, it’s whether or not our underlayments are considered breathable. The short answer is no, Epilay underlayments are not considered breathable! But as it turns out, breathability isn’t a...
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