McAllen Valley Roofing - Company Brochure - 2021

31 Commercial PVC The Duro-Last flagship membrane is a proprietary thermoplastic formulation that provides exceptional flexibility, reflectivity and resistance to UV radiation, fire and a broad range of chemicals and is perfect for commercial and industrial buildings with flat or low-sloped roofs. The membrane is “precision fabricated” to your building’s specifications in a controlled factory environment, including all accessories and edge details. Then the majority of your roofing system components are carefully assembled in our factory and shipped to your building site for final installation. Thickness over scrim isn’t the only quality that sets us apart from other roofing manufacturers. The Duro-Last Membrane* offers proven chemistry, four decades of proven in-the-field performance and top-notch support to back it all up.

Thickness above scrim (aka “Performance Layer”) Scrim

Bottom Layer

5 Reasons to Consider A Duro-Last Roof 1. A faster, less disruptive installation – less mess, noise, odor, and risk to sensitive equipment. 2. A durable, long-lasting roof – resistant to fire, chemicals, grease, high winds, punctures, and temperature extremes. 3. Fewer problems down the road – leak-proof and virtually maintenance-free. 4. Lower energy costs – among the most energy- efficient roofs available today 5. Guaranteed quality – backed by the industry’s best warranties.

50-mil Duro-Last Membrane ASTMD4434 Type III PVC Roof System

Typical 60-mil Competitive Membrane ASTMD4434 Type III PVC Roof System

Above scrim thickness: 28 mils (exceeds ASTMminimum of 16 mils for Type II, III, and IV PVC membranes. Scrim: 14 x 18 threads/inch; weft-inserted.

Above scrim thickness: 22 mils

Scrim: 10 x 10 threads/inch; woven. Membrane breaking strength: 300 lbf. (ASTMD751) Filler material added below scrim to increase membrane thickness. Non-white bottom layer decreases energy efficiency.

Membrane breaking strength: 366 x 472 lbf. (ASTMD751) Same PVC formulation above and below scrim.

Duro-Last membrane is white from top to bottom, deliver- ing superior energy efficiency.

Made with FlippingBook - professional solution for displaying marketing and sales documents online