10 Best Roofing Underlayment Materials 2026 in the United States

The Grace Self Adhering Ice and Water Shield is a rubberized asphalt underlayment material designed for roof protection. With a roll thickness of 40 mils, this product provides a substantial barrier against water leakage and has superior adhesion to the deck, ensuring water-tight laps. One of its major strengths is its ability to seal around fasteners, which enhances its water resistance. The slip-resistant surface is beneficial for safer installation, and the split-release Ripcord feature allows for easy application on demand. Additionally, it can be applied over old GCP underlayment, adding to its versatility.

The product is UV resistant for up to 120 days, giving some protection against sun exposure during installation. However, at 55 pounds per roll, it may be heavy to handle for some users. Also, it has a relatively low Best Sellers Rank, which might indicate limited widespread use or recognition in the market. Despite this, it is covered by CertainTeed's SureStart Warranty, which adds to its reliability.

This product would be well-suited for homeowners or contractors looking for a durable, water-resistant underlayment with good adhesion and ease of application, especially in reroofing projects.

The ZIP System Peel and Stick Underlayment is a high-performance roofing underlayment designed to protect areas vulnerable to leaks or water damage, such as eaves, valleys, or entire roofs.

Made from self-adhered rubberized asphalt, it effectively seals around nails, providing robust water resistance and an additional layer of protection against ice dams and wind-driven rain. Its slip-resistant surface makes it easier and safer to apply, which is a significant advantage for DIY enthusiasts and professional roofers alike. Additionally, it meets the code requirements for an ice barrier or roofing underlayment as per ESR-4904 standards.

One of its standout features is its high temperature tolerance, with a maximum service temperature of 260 degrees Fahrenheit, making it suitable for roofs in hot climates. However, the underlayment's thickness is not specified, which might be a consideration for those looking for a more substantial barrier. It's also relatively heavy at 51 pounds, which could make handling and installation more challenging. While it offers excellent water resistance, the product brief does not mention UV resistance, a factor that could affect its longevity if exposed to sunlight for extended periods.

The Grace Ice & Water Shield Roofing Underlayment is a solid choice for protecting roofs from ice dams and wind-driven rain. Its dimensions (36 inches by 75 feet) and coverage (225 sq. ft.) make it suitable for moderate-sized roofing projects. One notable strength is its high durability and superior water-tight laps, ensuring effective protection against water penetration.

Additionally, it forms a high-quality seal around fasteners, which adds to its reliability in preventing leaks. Although it is manufactured in China, the item is also relatively heavy at 39.8 pounds, which might make handling and installation a bit challenging. Its mid-level ranking in the flooring underlayments category suggests it is a reasonably good product but not among the top performers.

This product is ideal for users needing a reliable and durable roofing underlayment with good water resistance and ease of installation, though they may need to inquire further about its detailed specs for specific technical requirements.