Duro-Last Roofing, Inc.
525 Morley Drive.
Saginaw, MI 48601
Tel: (800) 248-0280
Fax: (800) 432-9331
http://www.duro-last.com

Duro-Last^® Rock-Ply^™ Roofing System

The look of roofing ballast with the watertight integrity of single-ply.

The Duro-Last Rock-Ply System is ideal for commercial and residential roofing applications where appearance is important, but traditional rock stone ballast is not practical because of weight considerations or difficulty transporting the ballast to where it's needed on the roof. The Rock-Ply membrane provides a ballast look and the watertight performance and long-term durability of a thermoplastic, single-ply roofing system.

Our Rock-Ply product is made from the same durable membrane as the Duro-Last roofing system, a proven performer since 1978. The design is printed onto the membrane, then a special polymer coating is applied to help protect the finish from marring fading, and dirt accumulation.

Like the Duro-Last roofing system, the Rock-Ply system is prefabricated to fit the dimensions of the roof space, ready to be installed by an authorized Duro-Last contractor. Deck sections are mechanically-attached or adhered to the roof deck and adjacent edges are heat-welded together, forming a watertight, monolithic covering.

The Duro-Last Rock-Ply system is complete, with all fasteners, flashings, edge details, and other materials delivered to the job site. Flashings for critical rooftop transition areas are precision-fabricated in a Duro-Last facility to fit those areas; there is minimal on-site assembly of these components. Rectangular curb flashings for a Rock-Ply installation typically will have both horizontal and vertical surfaces made from dark gray material. Other flashings, such as for stacks, vents, and parapets, typically will have the horizontal surface (which is welded to the deck membrane) made from Rock-Ply material and the vertical surface made from dark gray material.

The Duro-Last Rock-Ply roofing membrane is available in 50-mil thickness only.

The Rock-Ply roofing system is back by the best warranty in the roofing industry. Our standard, comprehensive 15-year No Dollar Limit (NDL) warranty is transferable, has no exclusions for ponding water, and provides coverage against consequential damages that result from defects in the Duro-Last material and/or installation workmanship. Duro-Last also has 20-year warranties available.