10 Best Underlayment For Metal Roof 2025 in the United States

The ZIP System Peel and Stick Underlayment is designed to offer robust protection against leaks and water damage, making it suitable for areas prone to ice dams or heavy rain, such as eaves and valleys. The material used is a high-performance rubberized asphalt, which is known for its durability and ability to seal around nails, enhancing its water resistance.

With a slip-resistant surface, this underlayment is relatively easy to install, even for those with less experience in roofing projects. Its maximum service temperature of 260 degrees Fahrenheit ensures that it can withstand high temperatures without degrading, adding to its reliability over time.

Its bulky size (66.7 x 1 x 0.04 inches) and weight (51 pounds) might make it difficult to handle for some users. Those with moderate to heavy roofing needs, especially in climates with significant ice or rain, will likely benefit the most from this underlayment.

The MFM Peel & Seal Self Stick Roll Roofing is designed specifically for users looking for an effective underlayment solution for metal roofs. One of its key strengths is its waterproof seal, which is essential for protecting your roof from leaks and moisture. The material is aluminum, ensuring durability, and its thickness of 45 mils offers a solid barrier against the elements. Additionally, this product is easy to install; it sticks to almost any surface without the need for additional adhesives, making it a great option for DIYers. It's particularly beneficial for those with RVs and trailer homes due to its compatibility with low slope and low pitch roofs.

The roll length of 33 feet 6 inches might be limiting for larger projects, meaning multiple rolls could be necessary.

The MFM Peel & Seal is a strong choice for those in need of reliable underlayment for low slope metal roofs, especially for smaller applications or recreational vehicles. However, potential buyers should keep in mind the environmental conditions they are working in and plan their material needs accordingly.

The Tyvek Protec 160 Roof Underlayment is a reliable option for metal roof installations, known for its strong DuPont quality and durability. It excels in walkability, allowing installers to move around safely on the roof during setup. The material lays flat nicely, helping create a smooth surface underneath metal panels, which can improve the finish.

It also acts as a secondary moisture barrier, protecting the roof deck from water damage during and after installation. One handy feature is that it accepts chalk marks well, making it easier to mark measurements for precise cutting and placement. Installation is generally straightforward, but because it weighs over 30 pounds per roll, handling might require some effort.

This underlayment suits homeowners or contractors looking for a trustworthy, easy-to-work-with moisture barrier under metal roofs, especially in moderate climates where detailed extreme weather specifications are less critical.