What is the Roofing Underlayment and Why is It Important?

Larry Walty II • June 5, 2020

According to roof repair experts, whenever homeowners talk about their roofs, some think it only consists of three components: the roof deck, which holds the roof up; the shingles, the component that serves as the roof’s outer layer; and the valleys, which make water shedding much easier for your roof. While these are all important components for your roof, there is one that you should never forget to consider: the underlayment.

Here’s everything you need to know about the roofing underlayment.

The Roofing Underlayment: What is It and Why is It Important?

The roofing underlayment is a waterproof barrier material that is installed beneath the other roofing materials and directly on the roof deck. By installing it on your roof, you can easily protect its components from the water damage caused by leaks. According to residential and commercial roof repair experts, they come in three different kinds: asphalt-saturated, non-bitumen synthetic and rubberized asphalt.

The Different Types of Roofing Underlayment

The first type of roofing underlayment that homeowners can consider is the asphalt-saturated underlayment. When it comes to underlayments, this was the commonly used material until synthetic materials became commonplace. It’s also considered to be one of the most reliable as they are flexible, water-resistant and readily available and affordable.

The second type, on the other hand, is non-bitumen synthetic, which is now the most common type of underlayment recommended by experts. Compared to asphalt-saturated underlayments, it has better water resistance and was designed for full application on the entire roof. Finally, you can also consider rubberized asphalt, a premium type of underlayment that boasts the benefits of its predecessors while remaining completely waterproof at the same time due to its high percentage of asphalt and rubber polymer.

Make your search for commercial roofing contractors easier by turning to Larry Walty Roofing, the leading experts to approach when it comes to commercial and residential roofing. Give us a call at (316) 733-2843 or fill out our contact form to get a free estimate. We serve homeowners in Wichita, KS, and other nearby areas.

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