BLOG Understanding Roof Underlayment: NPR Roofers' Guide to the Unsung Hero of Roofing Systems Jan 31, 2026

If you've ever ventured into the world of roofing, you know it's a complex system of layers, each playing a crucial role in protecting your home. However, one component that often flies under the radar is roof underlayment. As experts in the field, NPR Roofers is here to shed light on this unsung hero of roofing systems and explain why it deserves your attention.

To start, let's address what roof underlayment actually is. In simple terms, it’s a protective barrier installed directly onto the roof deck, beneath the shingles. This layer serves as the first line of defense against weather elements, providing an extra layer of protection for your home. It's particularly crucial in climates with harsh weather conditions, helping to prevent leaks and extend the longevity of your roofing materials.

There are three main types of roof underlayment available: asphalt-saturated felt, rubberized asphalt, and non-bitumen synthetic underlayment. Each type comes with its unique set of advantages. Asphalt-saturated felt is the traditional underlayment choice, known for its affordability and ease of installation. Rubberized asphalt offers superior water resistance and a self-sealing property around nails, making it an excellent choice for added protection. Non-bitumen synthetic underlayment is lightweight, resistant to tearing, and offers fantastic durability under diverse weather conditions.

Choosing the right underlayment is crucial for ensuring the longevity and efficiency of your roof. Factors to consider include the local climate, the roofing material's specifications, and your budget. For instance, if you live in an area prone to heavy rainfall, opting for a synthetic or rubberized asphalt underlayment could be more beneficial due to their enhanced water resistance.

Another vital aspect to consider is the installation process. While the temptation to cut costs by attempting a DIY approach is understandable, roof underlayment installation is best left to professionals like NPR Roofers. Our experts ensure proper installation, which is crucial for the material to perform its intended function effectively. Incorrect installation can lead to many issues, including water damage and decreased efficiency of your roofing system.

Maintenance is equally important. Regular inspections can help identify potential issues early, such as tears or wearing in the underlayment, which can compromise its effectiveness. At NPR Roofers, we recommend scheduling routine check-ups, especially after severe weather events, to ensure everything remains in top shape.

In conclusion, while roof underlayment may not be the most visible component of your roofing system, it plays an essential role in protecting your home. By choosing the right type, ensuring proper installation, and maintaining it well, you can significantly enhance the durability and functionality of your roof. NPR Roofers is dedicated to providing not only top-quality roofing services but also empowering you with the knowledge to make informed decisions about your home. Reach out to us for expert guidance and exceptional service for all your roofing needs. Understanding and investing in quality roof underlayment is a step toward a safer and more resilient home environment.