Equipment Specifications
Cover Ballast & Anchoring Systems
Impermeable, permeable, and reservoir floating cover ballast systems: 90 mph wind uplift prevention, 60 mil HDPE membrane properties, non-destructive and destructive seam testing protocols, and extreme weather procedures.
HDPE Membrane Material Properties
60 mil HDPE geomembrane properties for cover membranes used in all ballast system types.
| Property | Unit | Value | Test Standard |
|---|---|---|---|
| Cover Membrane Thickness | mil (mm) | 60 (1.5 +/- 10%) | ASTM D5199 |
| Density | - | 0.95 | ASTM D792 |
| Tensile Strength at Break | lb/in-width | 240 min. | ASTM D638 |
| Elongation at Break | % | 700 min. | ASTM D638 |
| Tear Resistance | lb/w | 45 min. | ASTM D1004 |
| Water Absorption | % | <0.01 | ASTM D570 |
| Low Temperature Brittleness | °F | -103 max. | ASTM D746 |
| Dimensional Stability (212°F/1hr) | % | 2 max. | ASTM D1204 |
| Carbon Black Content | % | 2.0 min. | ASTM D1603 |
| Carbon Black Dispersion | rating | A2 | ASTM 3015 |
| Melt Flow Index | g/10 min | <1.0 | ASTM D1238 |
| Environmental Stress Crack | hours | 3,000 | ASTM D1693 |
| Puncture Resistance | lbs | 80 | FTMS 101-C Method 2065 |
Key Features
Design and performance features across all EFI cover ballast and anchoring systems.
90 mph wind uplift prevention across all cover types
Three ballast system types: impermeable, permeable, and reservoir
Grid weight system with foam flotation logs for gas flow void
Tether ropes to ground anchors for permeable covers
Ballast designed to fail before HDPE membrane fails
No liquid media used in ballast systems
No penetration of HDPE membrane cover
Perimeter anchor trench with rounded corners (impermeable)
Non-destructive and destructive seam testing protocols
Extreme weather procedures for wind, rain, ice, and power outage
Applications
Cover ballast and anchoring systems for a range of floating cover installations.
Impermeable HDPE floating cover systems for biogas capture
Permeable (Bio-Cap) floating cover systems for odor control
Reservoir floating cover systems for water storage
Anaerobic lagoon cover systems in high-wind regions
Cold climate installations requiring ice/snow protocols
Covered lagoon digesters with blower-removed gas systems
Specifications Summary
Key specifications for EFI cover ballast and anchoring systems.
| Specification | Value |
|---|---|
| Wind Rating | Up to 90 mph gusts |
| HDPE Cover Membrane | 60 mil (1.5mm +/- 10%) |
| Membrane Density | 0.95 (ASTM D792) |
| Tensile at Break | 240 lb/in-width min. (ASTM D638) |
| Elongation at Break | 700% min. (ASTM D638) |
| Tear Resistance | 45 lb/w min. (ASTM D1004) |
| Puncture Resistance | 80 lbs (FTMS 101-C) |
| Stress Crack Resistance | 3,000 hours (ASTM D1693) |
| Carbon Black Content | 2.0% min. (ASTM D1603) |
| Seam Testing (Non-Destructive) | Vacuum + air pressure, 100% of field seams |
| Seam Testing (Destructive) | Shear + peel, 1 per 150 LF min. |
| Impermeable Ballast | Grid weights + foam flotation logs + anchor trench |
| Permeable Ballast | Tethers + ground anchors + sandwich boards + weight straps |
| Reservoir Ballast | Fold weights + weight straps + submersible pumps |
Frequently Asked Questions
What wind speed are EFI ballast systems rated for?
What are the design criteria for impermeable cover ballast?
How are seams tested on HDPE cover membranes?
What happens during a power outage?
What types of ballast systems does EFI install?
Download Cover Ballast Specification Package
Get the complete cover ballast and anchoring system specification package including HDPE membrane data sheets, ballast design details, and seam testing protocols.
Request Spec Package