Roof Underlayment Type: Synthetic and Felt Underlayment

synthetic underlayment

When it comes to roofs, many homeowners are unaware of all the variables that influence a roof’s durability and safety from inclement weather. If you asked most individuals if they knew what roof underlayment was, they would have no idea.

Underlayment linings, on the other hand, are one of the key layers of protection your roof has against harsh weather like rain and snow.

What Is Roofing Underlayment?

Roof underlayment is a material that is installed beneath roofing shingles, tiles, or other roofing materials. The underlayment provides a secondary weatherproofing barrier to help prevent water intrusion in the event that the roofing materials are damaged. It also helps to protect the roof deck from ultraviolet radiation, which can cause premature deterioration. While most homes come with an existing underlayment, it is important to check its condition periodically and replace it if necessary.

Many roofing systems have an underlayment that is permanently adhered to the roof deck with nails or mechanical fasteners. Other roofing systems have an underlayment that is held in place with temporary fasteners and can be removed and replaced if necessary. Some roofing systems have multiple layers of underlayment for additional protection.

For those who are unaware, roof underlayment is generally produced from synthetic fiber or felt. It serves as a waterproofing barrier over the roof deck and prevents any moisture from getting into the flooring beneath your roof. It also serves as a barrier against the cold. Underlayment is placed beneath all other roof coverings, including insulation.

When selecting a roof underlayment, it is important to consider the climate in which the roof will be installed. For example, roofs in hurricane-prone areas should be able to withstand high winds, while roofs in cold climates should be able to resist freezing and thawing cycles.

Types of Roofing Underlayment

Felt Roofing Underlayment

Felt underlayment is the oldest type of roofing underlayment, and it’s still found on many roofs today. It was originally created by saturating paper or fiberglass mat with asphalt, and the manufacturing process hasn’t changed much since then. Felt roofing underlayment comes in two types: No. 15 felt and No. 30 felt.

felt underlayment

Both are available in pre-cut rolls of various sizes that are meant to cover specific types of roofs (for example, asphalt shingles, wood shake shingles, etc.) 

When compared to No. 15 felt, No. 30 felt is generally thicker, stronger, and less prone to tearing or ripping off while installation or during weather conditions.

The major benefit of using felt roofing underlayment is cost. Felt underlayment is typically less expensive than synthetic underlayment, which is why it’s frequently the first choice for budget-conscious homeowners.

Synthetic Roofing Underlayment

Synthetic roof underlayment is a construction material used to waterproof and protect roofs. It is made with an asphalt-saturated basemat and fortified with a mix of fiberglass, making it extremely water-resistant. Synthetic underlayment is much stronger and more resistant to tears than other types of underlayment, making it ideal for use in roofing projects. The highest quality brand of synthetic underlayment also features anti-slip properties, making them safe to use in all weather conditions. 

Synthetic roof underlayment is an essential product for any roofing project, and its superior performance characteristics make it the best choice for protecting your home or business.

synthetic underlayment

Install the Right Underlayment for Your Roof

A good rule of thumb is to replace the underlayment every ten years or whenever there is signs of wear and tear. When choosing an underlayment, be sure to select one that is compatible with the type of roofing material you have. For example, if you have a metal roof, you would not want to use an asphalt-based underlayment, as this could cause the roofing materials to deteriorate prematurely. There are a variety of underlayment products on the market, so be sure to do your research before making a purchase. By taking the time to educate yourself on roofing materials and their proper installation, you can help ensure that your home is safe from weather damage.

Near Me Roofing is a full-service roofing company that provides expert installation of the right underlayment for your roof. We have experience with all types of roofing materials and can offer sound advice on the best underlayment to use for your home or business. Whether you’re doing a re-roofing project or building a new home, there are several things to think about when selecting the right type of underlayment. Contact Near Me Roofing today for a free consultation and estimate. We look forward to serving you!

Sources: 

Synthetic vs. Felt Roofing Underlayment | Owens Corning Roofing.

https://www.owenscorning.com/en-us/roofing/tools/synthetic-vs-felt-roofing-underlayment-pros-cons

Best Underlayment to Protect Your Roof from the Elements (barricadebp.com)

https://barricadebp.com/news/the-best-type-of-roof-underlayment-to-protect-your-roof-from-the-elements

Near Me Roofing Company

12650 120th Ave NE Suite #702, Kirkland, WA 98034, USA

(425) 242-4795

Near Me Roofing is your go-to roofing company in Greater Seattle, Kirkland, and surrounding areas.

When it comes to your roof, you need someone who is committed and skilled. Near Me Roofing Company has got you covered with certified pros that will always do what’s best for the safety of everyone living or working in this area! Our expert team offers services such as repairs from 100% recycled materials through the installation if needed—we’re here every step along the way so give us a call today!

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