As your home’s primary protection against the elements, every component of your roof must be in tip-top shape in order to effectively perform its day-to-day functions. In this article, our premier roofers reveal the importance of a critical yet often overlooked component of the roofing system: the underlayment.

What Is Roof Underlayment?
Also called felt paper, roof underlayment is a water-resistant or waterproof protective barrier installed underneath the shingles and onto the deck. It serves as an additional layer of protection against leaks and the damage that comes with them, such as mold and rot. The three main types of underlayment are asphalt-saturated felt, non-bitumen synthetic felt and rubberized asphalt.
What Are the Benefits of Roof Underlayment?
Roof underlayment has proven to not only preserve the durability and service life of your roof, but also improve your quality of life at home.
- It provides fire protection. For an asphalt shingle roof to achieve a Class A fire rating, it requires an underlayment material that meets industry standards.
- It provides weather protection. While the shingles are the first line of defense of your roof, the underlayment provides a backup layer to protect the inside of your home. Think of it as the final barrier before water leaks into your living space.
- It boosts energy efficiency. Your roof underlayment adds an extra layer of insulation that prevents outside air from entering your home, helping you save on unnecessary energy expenses in the long run.
- It increases peace of mind. With torrential downpours, strong winds and heavy snowfall, it is not uncommon for homeowners to worry about their roofs. By having your roofing system installed by a certified roofing contractor, you can have peace of mind knowing that it will remain strong and efficient for many years.
Willi Roofing Services is a full-service roof repair and replacement company. We are fully licensed and insured in order to provide our customers with the best roofing products and services. Call us at (512) 394-8234, or complete our online form to schedule an appointment.