Silage Covers

High-Performance Silage Covers for Maximum Feed Preservation

Proper silage management depends on controlling oxygen and moisture infiltration. Even minor air intrusion can accelerate aerobic spoilage, yeast activity, and mold growth—leading to measurable dry matter loss and reduced feed quality.

Our silage covers are engineered to create an effective oxygen and moisture barrier system, helping producers:

• Reduce dry matter shrink

• Preserve starch and protein content

• Improve feed stability at feed-out

• Minimize surface spoilage

• Extend storage life

Selecting the correct silage cover is not simply a cost decision—it is a feed value protection strategy.

The Importance of Oxygen Barrier Technology

Traditional polyethylene bunker covers provide basic moisture protection, but modern multi-layer and oxygen barrier films significantly reduce oxygen transmission rates (OTR). Lower oxygen permeability results in:

• Faster anaerobic stabilization

• Reduced heating at the surface

• Lower yeast and mold activity

• Improved aerobic stability during feed-out

Products such as GeoFresh GF-RB7WB incorporate multi-layer extrusion laminate construction designed to enhance oxygen resistance while maintaining mechanical strength.

For high-value silage crops such as corn silage, high-moisture corn, and specialty feed blends, oxygen barrier technology delivers measurable performance benefits.

Product Options & Performance Characteristics

5 Mil Tri-Layer Silage Covers (GeoFeed GF A5WB1)

• UV stabilized white/black polyethylene

• Reflective white surface reduces heat absorption

• Black underside limits light transmission

• Cost-effective solution for standard bunker coverage

• Ideal for operations with seasonal turnover

Best suited for: dairy farms, feedlots, and smaller bunker systems seeking dependable protection at an economical price point.

7 Mil Oxygen Barrier Reinforced Covers (GeoFresh GF-RB7WB)

• Ten-layer reinforced extrusion laminate

• Enhanced oxygen resistance

• Improved tear strength compared to conventional films

• Excellent puncture resistance

• Designed for higher-value feed protection

Recommended for: large commercial dairies, high-production herds, and long-term bunker storage.

Woven Coated HDPE Silage Covers (GeoProtect Series)

Available in 12–30 mil thicknesses, these woven coated fabrics provide superior mechanical durability.

Key advantages:

• High tensile strength

• Exceptional tear and puncture resistance

• Long-term UV performance

• Ideal for high-wind environments

• Suitable for extended storage cycles

Often used for:

• Large bunker silos

• Commodity piles

• Grain storage

• Operations requiring multi-season durability

White/Black Film Advantage

Most of our silage covers utilize a white/black construction:

• White top layer: Reflects solar radiation to reduce surface temperatures and limit heat-related spoilage.

• Black bottom layer: Blocks light transmission and enhances fermentation stability.

This dual-color system is the industry standard for preserving silage integrity in exposed agricultural environments.

Custom Sizing & Fabrication

To improve installation efficiency and reduce seams, we offer:

• Wide roll options

• Large fabricated panels

• Custom lengths for bunker dimensions

• Reinforced edges (upon request)

Providing bunker width, length, and sidewall height allows us to recommend optimal sizing and thickness.

Installation Best Practices

For maximum performance:

1. Ensure proper compaction of silage prior to covering.

2. Apply cover immediately after filling to minimize oxygen exposure.

3. Overlap seams adequately.

4. Use sandbags, gravel tubes, or ballast systems at 3–5 ft spacing.

5. Maintain drainage to prevent water pooling.

Correct installation significantly reduces edge infiltration—the most common source of spoilage.

Economic Impact of Proper Silage Covering

Studies consistently show that inadequate bunker coverage can result in 5–20% surface spoilage losses. For medium to large dairy operations, this translates to substantial feed replacement costs.

Investing in higher-performance silage covers:

• Reduces shrink

• Improves feed consistency

• Supports milk production efficiency

• Lowers overall feed cost per ton

When evaluated against total feed value stored, premium silage cover systems often deliver a strong return on investment.

Applications

• Dairy operations

• Cattle feedlots

• Commercial silage production

• Grain and high-moisture corn storage

• Bunker silos and drive-over piles