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Titanium® Metal Roof Underlayments | Owens Corning Roofing
Owens Corning

About Titanium® Metal Roof Underlayments

CONFIDENCE UNDER METAL

Titanium® is one of the most preferred premium synthetic and self-adhered underlayment brands. Recommended by major metal experts and available at top distributors, Titanium® products are great for use with metal roof projects, including those with steep-slope installations.

Engineered tough to stay strong during and after installation, these underlayments are rigorously tested in labs and proven on thousands of roofs. With tougher surface durability than competitors+,‡‡ and best-in-class tear strength, Titanium® underlayments create a durable, weather-resistant barrier under metal roofs.

From standing seams to metal shingles, Titanium® will help you ensure homeowners have a well-protected, great-looking roof for years to come. 

A roof that is partially finished showing the Titanium underlayment exposed and contractor walking across the roof slope.

TITANIUM® UNDERLAYMENTS

Why Are Underlayments for Metal Roofs Important?

For metal roof systems, high-performance underlayments are crucial. Metal can expand and contract with temperature changes, creating small openings that allow water or condensation to reach the roof deck. A durable underlayment provides a continuous barrier that resists moisture intrusion in these conditions, making it a critical component of the roofing system.

Titanium® products combine high-temp rating, UV resistance and improved walkability to deliver reliable roof underlayment performance.


Illustration of high temperature, up to 240°F

High-Heat Resistance

Heat can build up under metal roof claddings, so you need an underlayment that’s resistant to high temperatures. All Titanium® underlayment products achieve heat resistance up to 240°F, making them an ideal choice for metal roofing projects. 

Illustration of the sun.

UV Exposure

With up to six months of UV exposure protection, Titanium® underlayments are designed to reliably protect the roof deck during installation, with a design that’s tough enough to help perform and protect against the elements. 

Illustration of a boot print

Steep-Slope Walkability

Confidence underfoot is essential for roofing crews to work quickly and safely. The unique synthetic construction of Titanium® underlayments offer an elevated grip and less slipping, even on slopes 8:12 pitch and higher.

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Watertight Horizontal Lap System

Titanium® self-adhered products include a watertight horizontal lap system, with engineering that forms a watertight seal — creating peace of mind for homeowners. 

How to Choose the Best High-Temperature Underlayment for Metal Roofs

There are many types of roofing underlayment, but selecting the right one depends on the unique conditions of a home project. A high-temperature underlayment is often necessary for metal roof applications, as metal surfaces can generate significant heat.

When reviewing options, look for a high-temp metal roof underlayment that provides a moisture barrier against heavy rain, melting snow, or ice dams. Consider your region’s climate, the roof's slope, local building codes, and review manufacturer installation guidelines for compatibility. For more considerations, review our guide on Choosing the Right Underlayments for Metal Roofs.

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Close up of a partially installed black metal panel roof, revealing Titanium PSU30 underlayment.

Roofing Contractor Customer Loyalty Program

Join our Customer Loyalty Program, a specialized program within the Owens Corning Contractor Network that converts qualifying Titanium® and RhinoRoof® purchases into financial rewards and business growth opportunities.

Learn More about CLP Rewards
Roofing Contractor Customer Loyalty Program logo.

TiTanium Under Metal Video Series

Explore our video series, which covers important topics related to underlayment for metal roofs, including color, material and fastener selection, as well as installation practices and long-term performance considerations.

Metal Industry
Metal Industry
Fasteners
Fasteners
Color & Price of Metal Roofing
Color & Price of Metal Roofing
Roof Flashing: Asphalt Shingle Roof vs. Metal Roof
Roof Flashing: Asphalt Shingle Roof vs. Metal Roof
ASTM E108 Fire Classifications: Class A, Class B, Class C
ASTM E108 Fire Classifications: Class A, Class B, Class C
Synthetic Underlayment & Self-Adhered Products for Metal Roofs
Synthetic Underlayment & Self-Adhered Products for Metal Roofs
Roofing Underlayment Installation for Metal Roof Systems
Roofing Underlayment Installation for Metal Roof Systems
Fasteners for Installing Underlayment on Metal Roofs
Fasteners for Installing Underlayment on Metal Roofs

Talk to an Expert

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative.
+Compared to premium underlayments from competitive synthetic brands (Owens Corning testing, 2024).
‡‡Compared to premium underlayments from competitive self-adhered brands (Owens Corning testing, 2024).
†See installation instructions for specific Class A Fire Resistant roofing assemblies.