Raven Industries Engineered Films Division has been helping customers with their feed storage needs for over 40 years with high-quality silage bunker covers and grain storage covers. With the wide selection of materials we offer, you can count on a perfect fit for your next application. We are also well known for the manufacturing of waste containment liners, fresh water pond liners, canal lining for irrigation systems, fumigation film, long-term floating covers for odor control and confinement building ceiling materials to name a few. All products are offered in a wide range of standard sizes as well as large one-piece custom sizes.

Our products are designed to provide a quality solution at a competitive price all manufactured under the strict guidelines of our ISO 9001:2000 Certified Management System.

Rufco A5WB covers
Our bunker covers have more than twice the tear resistance as the leading silage cover. And, Raven is one of the only manufacturers that offers hard to find custom widths of 80', 100’ and beyond, as well as custom lengths up to 1000’ and more.

• Available in a tri-layer, 5 mil white/black cover.
• Ultra violet inhibitors protect against UV damage.
• White/black covers reflect light and reduce heat build-up.
• Black side provides opacity.
• One-year warranty against manufacturer’s defects.
• Black/white fiber reinforced covers also available.

Protect your valuable assets with our reinforced polyethylene grain covers. As a leading manufacturer of one-piece grain covers nationwide, you can trust Raven for all your large, one-piece cover needs.

• String-reinforced laminated product provides exceptional tear resistance and seam strength.
• Available in 6 to 20 mil thickness.
• White side reduces heat build-up and condensation. Black side blocks light transmission.
• Ultra violet inhibitors protect against UV damage.
• Provides up to 2 seasons of use with proper installation and handling.
• Panels can be easily sewn together in the field.

Our large custom sized one-piece liners are designed for ease of installation and to control waste seepage contamination as well as fresh water containment for on-farm use. Tough puncture and tear resistant unsupported and reinforced lining materials are available from 20 mils up to 45 mils thick. These membranes are formulated with thermal and UV stabilizers to assure a long service life.

Raven manufactures Dura-Skrim J30WB, an extremely durable white reflective reinforced floating covering materials to help control toxic gases eliminated from animal waste. Custom floating covers can be designed and built to fit your individual requirements by working with one of our experienced fabricators.

Large panels of Rufco A5WB, a lightweight yet durable white/black polyethylene film provide an economical yet effective method of protecting your hay crop. These rolls are easy to handle and are available in a wide variety of widths and lengths.

Dura-Skrim J6WB reinforced ceiling material was designed to meet the appearance and performance requirements of today’s energy efficient builders. It is manufactured with outer layers of highly stabilized bright white and black film and a very tear-resistant inner core of a polyester tri-directional reinforcement. This pinhole free material protects the buildings insulation from damaging moisture.