Won't deteriorate due to thermal expansion

 

The continual expansion under the Australian sun and contraction at night places enormous pressure on the joints and welds of other lining systems ultimately leading to failure.
 
When exposed to sun, the temperatures of geomembranes can far exceed atmospheric temperatures. Seasonal temperatures of between 0o to 40o C will result in the geomembrane’s temperature fluctuating between 0o and 80oC.
 
BGMs are resistant to environmental conditions and their thermal expansion coefficient is effectively zero (approximately 100-200 times less than HDPE.
 
As a result they lie flat against the surface and do not buckle or bend under the Australian sun.

 

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HDPE
showing severe Tear Damage 2mm textured HDPE after 6½ years service

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EPDM showing severe Tear Damage 14mm EPDM less than 8 years service

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Hypalon suffers severe Tear Damage 0.9mm Hypalon + geotextile 7 years old