May 11, 2026
Geomembrane wrinkles are a common issue during liner installation, particularly on large projects where the membrane is exposed to changing temperatures, wind, uneven subgrades, and complex site conditions. A certain amount of movement is normal because geomembranes expand and contract with temperature changes. The real concern is excessive or uncontrolled wrinkling.
Large wrinkles can interfere with panel alignment and welding, create local stress concentrations, and make it more difficult to achieve proper contact between the geomembrane and adjacent layers. On slopes, uncontrolled membrane movement can also affect interface stability.
Most installation wrinkles are not caused by one factor alone. They usually result from a combination of temperature, subgrade conditions, installation te...
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