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At IEC, we’ve created custom gas collection and storage covers to meet your exact specifications and to ensure project success.

Industrial Gas Collection Covers

IEC’s Floating Gas Collection Covers are specifically designed for each client. IEC’s experience in custom design and field fabrication insures a successful project. Certified IEC technicians have installed over 10 million square feet of covers in some of the harshest industrial and environmental site conditions.

The following advantages and options are available with gas collection covers. They:
  • Can be installed without site interruption
  • Can be installed on tanks or lagoons
  • Eliminate rainwater ponding problems
  • Eliminate gas ballooning
  • Provide high buoyancy and rigidity
  • Have hatches to provide access to in-basin equipment
  • Have pre-manufactured panels to improve quality
  • Are fabricated at IEC’s plant, so field welding is not required

Agricultural Gas Collection Covers

Our biogas manure handling systems are custom designed for anaerobic tank and pond.

Each IEC biogas collection cover system is designed with a gas-tight perimeter, whereas gases are continuously removed and channeled to perimeter piping where it exits the basin to be flared or used as fuel. IEC gas covers are designed to minimize inflation and ballooning of the geomembrane to reduce potential vibration and fatigue from wind, which significantly reduces the life span of a cover. IEC’s floating gas collection covers use lateral floats, which keeps the entire cover floating on the waters’ surface, eliminating cover inflation and exposure to wind damage.

Rainwater trenches are also created by strategically placing ballast weight of pre-determined size and weight in a configuration that allows rainwater to migrate to a sump enclosure, where it is pumped off the cover or directed back into the basin.

Our biogas collection designs are proven to be among the best in the industry, and they can be specifically tailored to the needs of your farm business, or anaerobic system.

These agricultural-specific gas collection lagoon covers:
  • Provide the owner with an effective and low maintenance solution to covering their manure ponds.
  • Effectively collect bio-gases that can be flared or used to generate electricity.
  • Proven effective for low rate anaerobic digesters.
  • Produce fertilizer in a form that is readily assimilated by crops.

Gas Storage Covers

IEC offers the right solution for any type of gas storage. The need for gas storage is project specific and depends upon production and space availability. Our vessels can be free standing or installed in tanks, containers or buildings.
The following advantages and options are available with gas storage covers:
  • Designed by engineers with over 25 years of continuous cover design experience
  • Methane cover
  • Renewable gas cover
  • Gas collection cover
  • Anaerobic Digester cover
  • Digester cover
  • Gas storage cover
  • Operating Pressure Designs 5 – 70 MB
  • Turn-key Installation for Blower, PRV’s and Sensors
  • Short Lead Times and Installation
  • Storage from 50 to 38,000 cu. Meters
  • Ultrasonic Height Gauge
  • Gas Pressure Sensor

Gas Storage and Collection Cover Applications

Our versatile gas storage and collection applications can be used across industrial, municipal and agricultural industries. Learn more here.

Gas Storage and Collection Cover Photo Gallery


IEC Covers is the leading manufacturer of geosynthetic covers used for the control of odors and gases that are emitted from manure ponds, wastewater treatment systems, and more. We design and manufacture large custom and prefabricated impermeable biogas collection covers which reduce the odors from manure ponds by up to 95%. Our gas collection covers are made up of modular panels that can be adapted to a variety of different applications.


If you’re looking for a way to cover your anaerobic digester, manure storage, or wastewater treatment system, our biogas collection cover might be the perfect option. Our biogas collection covers are designed to work with systems that have low solids content. This makes them ideal for dairy or other facilities with effective solids separation prior to water treatment. They can also be used for industrial wastewater treatment systems.


The use of biogas collection lagoon covers is a great way to treat manure-contaminated water. By using a solids separation step to keep the dissolved solids low, and by using a biogas collection lagoon cover to create an anaerobic environment, you can produce biogas that can be used for alternative energy or flared. Slurry Storage Covers are typically used for odor control in the swine industry but are applicable to any manure storage systems where the solids content is above 5%. These covers are used to control odors by preventing of evaporation of volatiles and gases during the storage of the manure. The end-use for the manure in these applications is land application which is typically done annually. The IEC biogas collection pond cover, biogas collection tank covers, and biogas lagoon covers are custom-designed cover systems that are gas-tight and specifically created for each client’s unique requirements. The biogas collection covers are used to capture and channel gases from the basin to perimeter piping beneath the cover. This allows the gases to be flared or used as fuel.


IEC’s biogas collection cover design includes rainwater trenches to help keep the cover in place, while also allowing rainwater to migrate to a sump enclosure. The sump enclosure can then pump the water off of the cover or direct it back into the basin. This helps keep the cover in place and prevents flooding.