The sheet carries a 180-day UV exposure rating, so the deck stays protected through long schedule gaps. Treat the rating as a maximum, not a target — plan to install the final roof covering as soon as the schedule allows, and use the enhanced fastening pattern printed on the sheet for any extended exposure.

For most steep-slope work, yes. Gear & Build Pro-Grade holds 85 lbf of tear strength (ASTM D4533), while felt tears at fasteners and wrinkles after a single night of dew. One 24-lb roll covers ten squares — the same area takes roughly 150 pounds of felt and five times the ladder trips — and it carries a 180-day UV rating instead of felt's few days. Felt is still cheaper per roll, which is why we publish quantity breaks that close most of the gap on a real job.

Yes. The top surface is a slip-resistant, walkable coating engineered to hold its grip on dusty decks, steep pitches, and early-morning dew, so crews can move confidently on the deck before the roof covering goes on. As with any underlayment, watch your footing on frost, standing water, or loose debris.

Yes. Pro-Grade is an inert synthetic sheet rated from -40°F to 240°F, so it holds up under metal panels and in hot-climate assemblies where asphalt felt dries out and cracks. Always confirm the roof-covering manufacturer's underlayment requirements for high-temperature metal systems before installing.

Owens Corning's Titanium line (UDL25, UDL30, UDL50, X30, and the self-adhered PSU30) is a proven, premium synthetic underlayment sold as a good-better-best lineup and tied to Owens Corning's system warranty. Gear & Build Pro-Grade is a single professional-grade sheet with comparable core specs — 85 lbf tear strength, a walkable slip-resistant surface, a 180-day UV rating, and -40°F to 240°F performance — sold contractor-direct at published pricing with no five-product decoder ring. If you want the branded system warranty, Titanium is a solid pick; if you want one sheet that covers the vast majority of steep-slope jobs at a straightforward price, that's the case for Pro-Grade. Compare each product's current spec sheet against your specific assembly.

Apply through the contractor registration page with your company details. Our team reviews applications, and once your account is approved you will see your tier pricing across the entire site whenever you are logged in — on product pages, in the cart, and at checkout.

Shipping is a flat $25.00 per order, and orders of $1,500.00 or more ship free. In-stock orders typically leave our warehouse within [PLACEHOLDER — replace with final business info: handling time] business days, and you will receive tracking by email the moment your order ships.

Yes — unopened rolls in resalable condition can be returned within 30 days of delivery. Start the process from your order confirmation email or contact us for a return authorization. See the full return policy for details on refunds and return shipping.

Yes. Everyone gets published quantity breaks — 10 or more rolls and 25 or more rolls each drop the per-roll price automatically. Approved contractor accounts get deeper tier pricing on top of that, with additional breaks at 6 and 12 rolls.

Note your exemption when you apply for a contractor account, or contact us with your resale or exemption certificate afterward. Once our team verifies the certificate, your account is flagged tax-exempt and sales tax is automatically removed at checkout.

Yes. Every roll ships with printed installation instructions, our resources section includes a full crew installation checklist, and our technical team is available to review specific assemblies, fastening schedules, and code questions — just reach out through the contact page.

Gear & Build is stocked by professional roofing distributors. Use the Find a Dealer page to locate the stocking dealer nearest your jobsite, or order directly from this site and have it shipped.